WILL GIVE BRANLIest NEED NOW
Which two PARTICLES are present in the nucleus of an alom?
O Electrons and neutrons
O Electrons and molecules
O Protons and neutrons
O Protons and electrons
Answers
Answer:
protons and neutrons
Explanation:
protons and neutrons are in the nucleus of an atom, while electrons circle around the nucleus.
Related Questions
Determine the density of honey. *
Mass = 162 g
Volume = =107-mL
CE
Clover
HONEY
Honey
US Orade
NET WTORIOL
Answers
Answer:
The answer is
1.51 g/mLExplanation:
The density of a substance can be found by using the formula
\(density = \frac{mass}{volume} \\\)
From the question
mass = 162 g
volume = 107 mL
The density is
\(density = \frac{162}{107} \\ = 1.514018691...\)
We have the final answer as
1.51 g/mLHope this helps you
5 Stoichiometry Chemistry questions !
1. Determine the mass in grams of lithium hydroxide produced when 0.38 g of lithium nitride reacts. g LiOH
Li3N(s) + 3 H2O(l) --> NH3(g) + 3 LiOH(aq)
2. How many moles of sodium chloride are produced when 2.9 grams of sodium iodide reacts? mol NaCl
2 NaI(s) + Cl2(g) --> 2 NaCl(s) + I2(g)
3. What volume in liters of chlorine gas at STP would be required to fully react with 125 g of NaI? L Cl2
2 NaI(s) + Cl2(g) --> 2 NaCl(s) + I2(g)
4. Determine the volume in liters of carbon dioxide produced at STP when 0.85 grams of butane (C4H10) reacts. L CO2
2 C4H10(l) + 13 O2(g) --> 8 CO2(g) + 10 H2O(g)
5. Calculate the mass in grams of water vapor produced by the combustion of 51.3 L of propane, C3H8, at STP. g H2O
C3H8(g) + 5 O2(g) --> 3 CO2(g) + 4 H2O(g)
Answers
4. The heat of
fusion of a
substance is
80 J/g. How
much energy
is required to
melt 25 g of
the
substance?
A. 2J
B. 25 J
C. 80 J
D. 2 kJ
Answers
It is 2 KJ
It is because the formula is :
q=m∆Hf
where m is the mass and ∆Hf is the heat fusion.
So, we get:
q=80×25
q=2000J or 2 KJ
You are a NASA engineer. You are the chief engineer for the Apollo 13 mission to the moon. The astronauts are running out of oxygen and need to get rid of the excess carbon dioxide. You know that sodium hydroxide has been suggested as a means of removing carbon dioxide from the spacecraft cabin. The filter which they had been using is fully saturated and no longer works. You remember that the astronauts have a 5 kg container of sodium hydroxide on the ship. You also know that sodium hydroxide can be used to remove carbon dioxide according to the following reaction:
NaOH + CO2 → Na2CO3 + H2O
The astronauts have 2 days left before they land on earth. You know that there are three astronauts, and each astronaut emits roughly 500 g of carbon dioxide each day. Is there enough sodium hydroxide in the cabin to cleanse the cabin air of the carbon dioxide, or are the astronauts doomed?
Again be sure to show all your work!
This is the answer, but I need the working on how to solve it:
5,450 grams – The astronauts die
Answers
Sodium hydroxide needed is 2728 g. There is enough amount of NaOH present in the cabin.
Each astronaut emits roughly 500 g of carbon dioxide per day, so over two days, the three astronauts will produce
3 x 500 x 2 = 3000 g (or 3 kg) of CO₂.
The chemical reaction between NaOH and CO₂ shows that 1 mole of NaOH reacts with 1 mole of CO₂ to produce 1 mole of Na2CO3 and 1 mole of H₂O. The molar mass of NaOH is 40 g/mol, so 5 kg (or 5000 g) of NaOH is equivalent to,
5000/40 = 125 moles of NaOH.
Since the reaction is 1:1, we need 125 moles of NaOH to react with 3 kg of CO₂. The molar mass of CO₂ is 44 g/mol, so 3 kg (or 3000 g) of CO₂ is equivalent to,
3000/44 = 68.2 moles of CO₂.
Therefore, we need 68.2 moles of NaOH to react with 3 kg of CO₂. Since we only have 125 moles of NaOH, we have enough to remove the carbon dioxide from the cabin air. The amount of NaOH needed is,
68.2 moles x 40 g/mol = 2728 g (or 2.728 kg).
So, there is enough sodium hydroxide in the cabin to cleanse the cabin air of the carbon dioxide, and the astronauts are not doomed.
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it is desired to inflate a baggie with a volume of 836 milliliters by filling it with nitrogen gas at a pressure of 1.05 atm and a temperature of 301 k. how many grams of n2 gas are needed
Answers
To inflate the baggie with a volume of 836 milliliters using nitrogen gas at a pressure of 1.05 atm and a temperature of 301 K, we can apply the ideal gas law. Using the equation PV = nRT and rearranging it to solve for the number of moles (n), we find that n = PV / RT, which yields approximately 0.08757 moles of nitrogen gas. By multiplying this value by the molar mass of nitrogen (28.02 g/mol for N₂), we can determine the mass of nitrogen gas needed, which comes out to be approximately 2.453 grams. Thus, around 2.453 grams of nitrogen gas are required to inflate the baggie to the desired volume.
To determine the mass of nitrogen gas needed to inflate the baggie, we can use the ideal gas law equation:
PV = nRT
Where:
P = Pressure = 1.05 atm
V = Volume = 836 mL = 0.836 L (converted from milliliters to liters)
n = Number of moles of gas (what we want to find)
R = Ideal gas constant = 0.0821 L·atm/(mol·K)
T = Temperature = 301 K
Rearranging the equation, we can solve for the number of moles (n):
n = PV / RT
n = (1.05 atm * 0.836 L) / (0.0821 L·atm/(mol·K) * 301 K)
n = 0.08757 mol (rounded to 5 decimal places)
Now, we can calculate the mass of nitrogen gas using the molar mass of nitrogen (N₂):
Molar mass of N₂ = 2 * atomic mass of nitrogen (N)
Atomic mass of N = 14.01 g/mol
Molar mass of N₂ = 2 * 14.01 g/mol
Molar mass of N₂ = 28.02 g/mol
Finally, we can calculate the mass of nitrogen gas (m) using the number of moles (n) and the molar mass (M):
m = n * M
m = 0.08757 mol * 28.02 g/mol
m = 2.453 g (rounded to 3 decimal places)
Therefore, approximately 2.453 grams of nitrogen gas are needed to inflate the baggie.
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What is the ratio of the number of molecules in 1 L of CO2(g) to the number of molecules in 1 L of CH4(g) at the same temperature and pressure? * 2 points 1:1 3:5 1:2 2:4
Answers
Answer:
1:1
Explanation:
Based on Avogadro's law, the volume of an ideal gas is directly proportional to the moles (Or number of molecules) presents of this gas under constant temperature.
The volume of the gas is independent to the nature of the gas
Using this law, we can change the state as:
X number of molecules of CO₂ in X number of molecules of CH₄ (Because are occupying the same volume). That means the ratio of molecules is:
1:1When an excess of the ligand (hormone) is poured through the column after the receptor binding step, what do you expect will occur?
Answers
The receptor will be forced away from the beads and rinsed out as a result of the ligand. often entail signal molecules attaching to a target cell's surface protein.
The most basic bacteria to the most sophisticated multicellular animals all depend on particular interactions between molecules to survive. For instance, the replication and decoding of genetic material demand the careful matching of nucleotide sequences that are directed by certain interactions with proteins. Selective interactions between proteins, nucleic acids, and lipids control the assembly of the macromolecular complexes that create cellular architecture and the metabolic processes that keep cells alive. For this reason, a quantitative examination of biomolecular interactions is essential to comprehending every aspect of cellular behavior.
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An experiment was designed to test the hypothesis that peanuts have more energy than a chip. The experiment determines calorimetry of the peanut and the chip, using water to capture the energy of the samples when they were burned. A 10 g sample of each type of food was burned underneath a metal can that held 50 g of water. A thermometer captured how much the temperature of the water increased. The water increased by 7 degrees for the peanut and 3 degrees for the chip. What conclusion can be drawn?
The chip has more energy than the peanut.
The peanut has more energy than the chip.
The experiment was flawed because more than one variable was being tested.
The peanut and the chip have the same amount of energy.
Answers
Since the water increased by 7 degrees for the peanut and 3 degrees for the chip, the conclusion would be that the peanut has more energy than the chip.
CalorimetryCalorimetry is the science of measuring the quantity of energy, usually in the form of heat, that is released during a reaction.
In this case, the energy released by the peanut and the chip were measured using calorimetry. The energy released was captured by the water and helps raise the temperature of the water.
The more energy released by the substances, the more the temperature of the water is raised.
Thus, since the peanut raised the temperature of the water by 7 degrees while the chip was only able to raise it by just 3 degrees, one can effectively conclude that the peanut has more energy than the chip.
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what does convergent plates mean
Answers
Answer:
A tectonic boundary where two plates are moving toward each other. If the two plates are of equal density, they usually push up against each other, forming a mountain chain. If they are of unequal density, one plate usually sinks beneath the other in a subduction zone. The western coast of South America and the Himalayan Mountains are convergent plate boundaries. Also called active margin collision zone See more at tectonic boundary. Compare divergent plate boundary.
Calculate the mass of naphthalene required to react stoichiometrically with the moles of 2-bromo-2-methylpropane that you have placed in the flask. Dispense that quantity of naphthalene into the weighing dish. There is some imprecision in delivering the powder onto the weigh boat, but a mass within 0. 040 g of the calculated stoichiometric quantity will be sufficient for this experiment. Note that you can use a combination of the 1 g and the 0. 1 g buttons to add the required mass. If you overshoot the goal, you can dis
Answers
We will need 12.817 grams of naphthalene to react stoichiometrically with 0.1 moles of 2-bromo-2-methylpropane. As mentioned in the question, a mass within 0.040 g of the calculated stoichiometric quantity will be sufficient for the experiment. So, a mass of naphthalene between 12.777 g and 12.857 g will be appropriate.
2-bromo-2-methylpropane + naphthalene → product(s)
To calculate the mass of naphthalene required for the reaction, we need to know the mole ratio of 2-bromo-2-methylpropane to naphthalene in the balanced equation.
From the balanced equation, we can see that the mole ratio is 1:1.
This means that one mole of 2-bromo-2-methylpropane will react with one mole of naphthalene.
First, we need to determine the number of moles of 2-bromo-2-methylpropane that we have in the flask.
Let's assume we have 0.1 moles of 2-bromo-2-methylpropane.
To react stoichiometrically, we will need 0.1 moles of naphthalene.
The molar mass of naphthalene is 128.17 g/mol.
To calculate the mass of naphthalene required, we can use the following equation:
mass = moles x molar mass
mass = 0.1 moles x 128.17 g/mol
mass = 12.817 g
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CORRECT QUESTION WOULD BE
Calculate the mass of naphthalene required to react stoichiometrically with the moles of 2-bromo-2-methylpropane that you have placed in the flask. Dispense that quantity of naphthalene into the weighing dish. There is some imprecision in delivering the powder onto the weigh boat, but a mass within 0. 040 g of the calculated stoichiometric quantity will be sufficient for this experiment. Note that you can use a combination of the 1 g and the 0. 1 g buttons to add the required mass. If you overshoot the goal, you can displace some of the powder back into the bottle with a spatula.
¿Qué ocurre cuando la radiación del sol atraviesa la atmósfera?
La luz es la fuente de energía y radiación que recibe la Tierra desde el espacio. De toda la energía que entra a la atmósfera una parte es absorbida y otra reflejada. Tanto el aire con sus partículas y moléculas gaseosas como la superficie terrestre (suelo, ciudades, bosques, mares, hielo, etc.) absorben y reflejan en diferente proporción la energía radiante entrante.
Asumiendo, que al tope (última capa) de la atmósfera llega un 100% de la radiación solar, de este total, un 20% es absorbido por las nubes y gases atmosféricos, pero también la atmósfera refleja al espacio un 6%, las nubes reflejan un 20% y el suelo refleja un 4%. El porcentaje de energía restante es absorbida por la superficie de la Tierra (¿cuánto es?).
4. Representar gráficamente los valores y la dirección de las energías radiantes absorbidas y reflejadas a partir de un valor total de energía solar entrante a la atmósfera igual al número de la suma de su fecha de nacimiento asignada previamente en unidades de vatios por cada metro cuadrado (W/m2).
Ejemplo: energía solar entrante = 2.026 W/m2
Asuma que a la atmósfera llega un 100% de la radiación solar (el valor corresponde a la suma de su fecha de nacimiento), de este total, un 20% es absorbido por las nubes y gases atmosféricos, pero también la atmósfera refleja al espacio un 6%, las nubes reflejan un 20% y el suelo refleja un 4%. El porcentaje de energía restante es absorbida por la superficie de la Tierra (¿cuánto es?).
Answers
HELLLLLLPPPPP
What type of circuit does this figure represent?
an open series circuit
an open parallel circuit
a closed parallel circuit
a closed series circuit
Electricity and magnetism
Answers
Answer:
a closed series circuit
Answer:
An open series circuit
Explanation:
I'm late but for future people...
I took the test.
hamid made this table to organize his notes on the properties of acids and bases. a 2-column table with 2 rows. the first column labeled acids has entries taste sour, react with carbohydrates. the second column labeled baseshas entries conduct electric current, form hydrogen gas with metals. which property is in the wrong column? taste sour react with carbonates conduct electric current form hydrogen gas with metals
Answers
The property in the wrong column is - base form hydrogen gas with metals.
Acid : It is a substance that has the ability of donating a proton or hydrogen ion..
The properties of an acid are :
Acids are sour in the taste.
It can conduct electricity.
The texture of an acid solution is sticky in nature.
It react with the carbonates to give salt.
It changes the color of the litmus paper to the red.
It react with a metal to give compound and the hydrogen gas.
Base : It is a substance that has the ability of donating the hydroxide ion.
The properties of an base are that-
Base are bitter in the taste.
It can conduct electricity.
The texture of an base solution is slippery in nature
It changes the color of the litmus paper to the blue.
It does not react with any metal.
Hence, from above information, we can conclude that the property in the wrong column is, base form hydrogen gas with the metals .
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You have a coin sitting on
a card on top of a glass. You want to put the
coin into the glass, but you are not allowed
to pick up the card. Think of how you can do
that. Then write a short explanation of why
it works that would make sense to someone
who doesn't remember Newton's laws of
motion.
Answers
You can just push the coin off it's place causing it's motion which causes the coin to fall in the glass.
What is motion?
Motion is defined as a phenomenon which is described with respect to change in object's position with respect to time.It is given in terms of displacement,velocity,distance ,acceleration,speed.
Branch of physics which deals with motion of objects without any reference to it's cause is called kinematics while the branch which studies forces and their effects on motion is called as dynamics.
Motion applies to various systems like objects,bodies, matter particles ,radiation ,curvature.There are three laws of motion which are proposed by Newton.Classical mechanics is based on Newton's law of motion.Relativistic mechanics is based on modern kinematics.
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Ethanol fuel mixtures have "E" numbers that indicate the percentage of ethanol in the mixture by volume. For example, E10 is a mixture of 10% ethanol and 90% gasoline. How much E7 should be mixed with 3000 gal of E10 to make an E9 mixture? Part: 0 / 4 Part 1 of 4 Let x represent the amount of a mixture (in gal) containing 319. ethanol. 3000 gal is the amount of E10 mixture containing 10% ethanol. Therefore, is the amount of the resulting E9 mixture containing 906 ethanol
Answers
To make an E9 mixture 8657.14 gal of E7 should be mixed with 3000 gal of E10
Given to us is the amount of ethanol in the E10 mixture is 10% of 3000 gallons:
Ethanol in E10 = 10% × 3000 gal = 0.10 × 3000 gal = 300 gal
To solve this problem, we can set up an equation based on the amount of ethanol in each mixture.
Let x represent the amount of E7 mixture (in gallons) that needs to be added to the E10 mixture to obtain the desired E9 mixture.
The amount of ethanol in the E7 mixture is 7% of x gallons:
Ethanol in E7 = 7% × gal = 0.07 × gal
The resulting E9 mixture will contain 9% ethanol of the total volume of 3000 + x gallons:
Ethanol in E9 = 9% × (3000 + x) gal = 0.09 × (3000 + x) gal
According to the problem, the resulting E9 mixture contains 906 gallons of ethanol:
Ethanol in E9 = 906 gal
Now we can set up the equation:
Ethanol in E10 + Ethanol in E7 = Ethanol in E9
300 gal + 0.07x gal = 906 gal
Subtracting 300 gal from both sides:
0.07x gal = 606 gal
Dividing both sides by 0.07:
x = 606 gal / 0.07
x = 8657.14
Therefore, approximately 8657.14 gallons of E7 mixture should be mixed with 3000 gallons of E10 to make an E9 mixture.
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Complete question: Ethanol fuel mixtures have "E" numbers that indicate the percentage of ethanol in the mixture by volume. For example, E10 is a mixture of 10% ethanol and 90% gasoline. How much E7 should be mixed with 3000 gal of E10 to make an E9 mixture?
When cooking in a convection oven, for best results you place your food in the center of the oven. This is because convection is energy transfer
A. by currents of moving liquid or gas
B. from a reaction system to its surroundings
C. by direct matter contact
D. by electromagnetic waves
Answers
This is because convection is energy transfer by currents of moving liquid or gas.
What is heat transfer by convection?
Heat transfer by convection is the transfer of heat from one place to another due to the movement of fluid.
When cooking in a convection oven, for best results you place your food in the center of the oven, this is because convection is energy transfer by currents of moving liquid or gas.
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This is because convection is a type of energy transfer by currents of moving liquid or gas (Option A).
What is convection?Convection is a physical natural phenomenon associated with energy transfer through a fluid.
In convection, a suitable fluid that produces what transfer can be for example air and/or water.
In conclusion, this is because convection is energy transfer by currents of moving liquid or gas (Option A).
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Drag each item to show if it is matter or not matter.
light bulb added to
sunlight
heat
lamp
matter
light bulb
not matter
Answers
What elements in a reaction is likely to react just like Zinc?
Answers
Answer:
Explanation:
Single replacement
Double replacement
Combustion (and synthesis)
synthesis
Decomposition
What happens if an air conditioner is used in a house that is not well insulated and not well sealed?
Answers
Several problems can happen if an air conditioner is operated in a house that is not properly sealed and insulated.
Higher energy costs may result from the air conditioner having to work harder to maintain the intended temperature.
Through fractures, gaps, and inadequately insulated walls, the cold air generated by the air conditioner may escape the home, causing uneven cooling and discomfort for the residents.
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Calculate the mass of ammonium sulfide (NH4)2S in 3.00 L of a 0.0200 M solution.
Answers
The mass of (NH4) 2S in the solution is : Mass = 0.0600 mol × 60.08 g/mol = 3.60 g.
The given molarity and volume of the solution can be used to calculate the number of moles of ammonium sulfide (NH4)2S.Then, the number of moles can be converted to mass using the molar mass of (NH4)2S.Mass of ammonium sulfide (NH4)2S in 3.00 L of a 0.0200 M solution is given by : Mass = moles × molar mass.The number of moles of (NH4)2S can be found using the equation:Molarity = Number of moles / Volume.Rearranging this equation, we get:Number of moles = Molarity × Volume Number of moles of (NH4)2S = 0.0200 M × 3.00 L.Number of moles of (NH4)2S = 0.0600 mol.The molar mass of (NH4)2S can be calculated by summing the molar masses of ammonium (NH4) and sulfide (S) ions.Molar mass of (NH4)2S = (2 × Molar mass of NH4) + Molar mass of S= (2 × 14.01 g/mol) + 32.06 g/mol= 60.08 g/mol.
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After the Peloponnesian War…
50 POINTS!
Answers
Answer:
After the Peloponnesian War, a period of political and economic unrest ensued in the Greek city-states as disagreements about the post-war settlement divided the cities. The war itself had caused considerable damage to infrastructure and disrupted trade networks, which had a further destabilizing effect on the region. The post-war chaos did eventually lead to the rise of Macedonian power in the fourth century BCE, however, resulting in the unification of the Greek city-states under the rule of Phillip II of Macedon.
Anton wants to make 5lb of syurp 1.5
Answers
No of counts:-
\(\\ \sf\longmapsto 5/1.5\)
\(\\ \sf\longmapsto 3.3counts\)
As new information is discovered, scientific theories are changed. Sometimes, old theories are revised. Why is this a necessary practice for science? Group of answer choices Old theories are dependent on primitive technology that was flawed, so new technology must be used. The process allows for an increasingly accurate understanding of the world It ensures that the newest ideas are the ones used to develop medicines and important safety equipment. New scientists need to get credit for their ideas or no one will go into science professions
Answers
Answer:
Old theories are dependent on primitive technology that was flawed, so new technology must be used.
Explanation:
The process of science is an unending process of inquiry into the nature of the universe. This inquiry into the nature of the universe is aimed at understanding of how things work and how the natural course of the universe can be exploited for man's good.
As new scientific evidences emerge, old theories are revised because we understand the world better, better technology is used to investigate nature in order to get a clearer view of natural phenomena.
Most old theories depend on obsolete technology, hence modern day sophisticated equipment must be used to correct the flaws of old theories.
HC2H3O2+NaOH⟶H2O+NaC2H3O2
If you require 32.10 mL of 0.1906 M NaOHNaOH
solution to titrate 10.0 mL of HC2H3O2HCX2HX3OX2
solution, what is the molar concentration of acetic acid in the vinegar?
Answers
The molar concentration of acetic acid in the vinegar is 0.611M
Molar concentration is the most convenient method of expressing the concentration of a solute in the given solution. Molarity is the number of moles of the solute dissolved per liter of the solution.
Thus M = mol per L.
All mole calculations will determine the amount in moles of the solution, for which it is the molar concentration.
Given,
Concentration of NaOH = 0.1906M
Volume of NaOH = 32.1 ml
Volume of acetic acid = 10 ml
During neutralization, the number of moles of acid is the same as the number of moles of base.
concentration of NaOH × Volume = Concentration of acetic acid × volume
0.1906 × 32.1 = Concentration of acetic acid × 10
Concentration of acetic acid = 0.611 M
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Nitroglycerin contains 60% as many carbon atoms as hydrogen atoms, three times as many oxygen atoms as nitrogen atoms, and the same number of carbon and nitrogen atoms. The number of moles in 1.00g of nitroglycerin is 0.00441. What is the molecular formula?
Answers
Answer:
C₃H₅N₃O₉
Explanation:
Molar mass of nitroglycerin (Ratio of mass and moles of the compound) is:
1.00g / 0.0041mol = 226.8g/mol
We can write the equations:
0.6H = C (1)
-60% as many carbon atoms as hydrogen atoms-
3N = O (2)
C = N
Using as basis the atoms of Carbon:
Carbon = 1
Nitrogen = 1
Oxygen = 3
Hydrogen = 1/0.6 = 1.67
A molecular formula has just whole numbers. This ratio of atoms times 3:
Carbon = 3
Nitrogen = 3
Oxygen = 9
Hydrogen = 5
C₃H₅N₃O₉. Molar mass of this formula is:
C = 12.01g/mol*3 = 36.03g/mol
H = 1.01g/mol*5 = 5.05g/mol
N = 14g/mol*3 = 42g/mol
O = 16g/mol*9 = 144g/mol
Molar mass:
36.03g/mol + 5.05g/mol + 42g/mol + 144g/mol = 227g/mol ≈ 226.8g/mol
That means molecular formula of nitroglycerin is:
C₃H₅N₃O₉The molecular formula of nitroglycerin is C₃H₅O₉N₃
Mass of nitroglycerin = 1.00 g
A number of moles of nitroglycerin = 0.0041 mol
It is required to calculate the molecular formula of nitroglycerin.
What is the empirical formula?An empirical formula tells us the relative ratios of different atoms in a compound.
The molecular formula of nitroglycerin can be estimated with the help of empirical formula.
The molar mass of nitroglycerin (Ratio of mass and moles of the compound) is:
1.00g / 0.0041mol = 226.8 g/mol
We can write the equations:
0.6H = C (1)
-60% as many carbon atoms as hydrogen atoms-
3N = O (2)
C = N
Using as basis the atoms of Carbon:
Carbon = 1
Nitrogen = 1
Oxygen = 3
Hydrogen = 1/0.6 = 1.67
A molecular formula has just whole numbers. This ratio of atoms times 3:
Carbon = 3
Nitrogen = 3
Oxygen = 9
Hydrogen = 5
C₃H₅N₃O₉.
Molar mass of this formula is:
C = 12.01g/mol*3 = 36.03g/mol
H = 1.01g/mol*5 = 5.05g/mol
N = 14g/mol*3 = 42g/mol
O = 16g/mol*9 = 144g/mol
Molar mass:
36.03g/mol + 5.05g/mol + 42g/mol + 144g/mol = 227g/mol ≈ 226.8g/mol
That means molecular formula of nitroglycerin is:
C₃H₅N₃O₉
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Q4) Do you think these kinds of forces are also acting on the cart as it coasts down the track
at time 2 on your Energy Transfers model? Why/why not?
Answers
On motion of cart as it coasts down the track mechanical energy, force of gravity is applied.
Mechanical energy :Mechanical energy is created by combining kinetic and potential energy. According to the principle of mechanical energy conservation, mechanical energy is constant in an isolated system when only conservative forces are acting on it. It is the power influencing how and where an object moves. Mechanical energy can take the form of potential energy or kinetic energy, depending on the situation. For instance, a moving vehicle has kinetic energy.
What is Gravitational Force?The force of attraction in between two bodies is directly proportional to the product of their masses and thus is inversely proportional to the square of the distance between them, according to Newton's universal law of gravitation.
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What are the elements at the bottom of the table called?
Answers
Answer:
inner transition elements.
Explanation:
right answer
consider the following electron configurations to answer the question: (i) 1s2 2s2 2p6 3s1 (ii) 1s2 2s2 2p6 3s2 (iii) 1s2 2s2 2p6 3s2 3p1 (iv) 1s2 2s2 2p6 3s2 3p4 (v) 1s2 2s2 2p6 3s2 3p5 the electron configuration of the atom with the most negative electron affinity is .
Answers
Considering these elements, the atom with the most negative electron affinity is Chlorine (Cl), with electron configuration 1s2 2s2 2p6 3s2 3p5.
Electron affinity is the energy change that occurs when an electron is added to a neutral atom, forming a negative ion. Atoms with more negative electron affinity values have a higher tendency to attract an electron.
Now let's analyze the given electron configurations to determine which atom has the most negative electron affinity:
(i) 1s2 2s2 2p6 3s1: This configuration belongs to Sodium (Na) with an atomic number of 11.
(ii) 1s2 2s2 2p6 3s2: This configuration belongs to Magnesium (Mg) with an atomic number of 12.
(iii) 1s2 2s2 2p6 3s2 3p1: This configuration belongs to Aluminum (Al) with an atomic number of 13.
(iv) 1s2 2s2 2p6 3s2 3p4: This configuration belongs to Sulfur (S) with an atomic number of 16.
(v) 1s2 2s2 2p6 3s2 3p5: This configuration belongs to Chlorine (Cl) with an atomic number of 17.
Chlorine has a higher tendency to attract an electron due to its proximity to achieving a full outer shell (3p6).
Know more about electron affinity here:
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A compound such as CaCl, would have an overall charge of?
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Calcium Chloride would have a charge of +2
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What is the relationship between extinction and biodiversity ?? PLEASE ANSWER!!!!!!!
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Answer:
The biodiversity of an area is literally the number of species, both plant and animal, inhabiting the environment being examined. When a species is no longer found in a region, it is locally extinct.
Explanation: