___ Bonds share balance electrons with other atoms

Answer:

Heat energy is being produced due to friction.

Answer: Thus the volume of the balloon at this altitude is 419 L

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

\(\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}\)

where,

\(P_1\) = initial pressure of gas = 751 mm Hg

\(P_2\) = final pressure of gas = 495 mm Hg

\(V_1\) = initial volume of gas = 340 L

\(V_2\) = final volume of gas = ?

\(T_1\) = initial temperature of gas = \(30^oC=273+30=303K\)

\(T_2\) = final temperature of gas = \(-27^oC=273-27=246K\)

Now put all the given values in the above equation, we get:

\(\frac{751\times 340}{303}=\frac{495\times V_2}{246}\)

\(V_2=419L\)

Thus the volume of the balloon at this altitude is 419 L

Based on the information, we can infer that the red line is about 3.9 cm.

To identify the measure of the red line we must look at the metric rule at the bottom. As we can see, this demarcates the centimeters and the millimeters. Based on the information, we can infer that the answer is 3.9 cm since the line extends to the line that delimits this value.

Based on the above, we can infer that the red line measures about 3.9 cm, taking the ruler as a reference.

Note: This question is incomplete. Here is the complete information:

Attached image

Learn more about measurements in: https://brainly.com/question/28913275

#SPJ1

Answer:

3.03 x 10²³ formula units

Explanation:

First we convert 48.0 grams of magnesium chloride into moles, using its molar mass:

Then we convert 0.504 moles into formula units, using Avogadro's number:

The percent by mass of the lithium in the compound is 18.78%. Option C

We know that the percentage has to do with the amount of the element that can be found in the compound. We can be able to obtain this when we  find the molar mass of the compound and then obtain the mass of the element in the compound.

Hence;

Molar mass of the compound = [2(7) + 12 + 3(16)]

= 14 + 12 + 48

= 74 g/mol

The we have the mass of the lithium in the compound as 14

Thus we then have;

Percent of lithium = 14/74 * 100/1

= 18.78%

Learn more about percent by mass:https://brainly.com/question/5394922

#SPJ1

Answer:

H₂   +   Cl₂    →    2HCl

Explanation:

The given reaction expression is shown below:

      H₂   +   Cl₂    →    HCl

We are to balance this given reaction expression.

Let us do this mathematically;

       aH₂   +   bCl₂    →    cHCl

Conserving H :  2a  = c

                   Cl:   2b  = c

Now, let a  = 1, c  = 2 , b = 1

So:

            H₂   +   Cl₂    →    2HCl

Answer:

Detail is given below.

Explanation:

Bromine: Br (Halogen and non metal)

Bromine is present in group 17 and it is called halogen.

All halogens are very reactive.

Calcium; Ca ( alkaline earth metal)

Calcium is present in group 2. It is alkaline earth metal.

It has two valance electrons.

Iron; Fe (Transition metal)

Iron is transition metal and also called d-block element.

Sodium: Na (Metal, main group element)

Sodium is metal and present in group one.

It has one valance electron.

Sulfur: S (non metal)

Sulfur is non metal. It is present in group 16.

It has six valance electrons.

Silicon: Si (metalloid)

Silicon is metalloid. It is present in group 14.

It has four valance electrons.

Xenon: Xe (Noble gas, gas at a room temperature)

it is noble gas. Xenon is present in group 18.

It is gas at a room temperature.

The mass concentration of sand in the ethanol solution is 0.299 g/dm³.

To find the concentration in grams per cubic decimeter (g/dm³), we first need to convert the volume from liters to cubic decimeters (dm³). Since 1 liter is equal to 1 cubic decimeter, we can directly convert the volume.

Given:

Mass of sand = 0.2 g

Volume of ethanol = two-thirds liter

Converting volume to dm³:

1 liter = 1 cubic decimeter

two-thirds liter = (2/3) cubic decimeter = 0.67 dm³ (rounded to two decimal places)

Now we can calculate the concentration in g/dm³ by dividing the mass of sand by the volume in dm³:

Concentration = Mass / Volume

Concentration = 0.2 g / 0.67 dm³

Concentration ≈ 0.299 g/dm³ (rounded to three decimal places)

Learn more about mass concentration at: https://brainly.com/question/23437000

#SPJ1

Explanation:

Separatory funnels can be used to separate immiscible liquids. Immiscible liquids are those which won't mix to give a single phase. Oil and water are examples of immiscible liquids. This is because water is more dense than oil, and two layers will thus form. A water layer, and above that, an oil layer.

A separatory funnel has two main components:

A separatory funnel is also usually held above a beaker or flask, with a retort stand and ring clamp.

Consider the separation of water and oil.

The solution is poured into the separatory funnel with the stopcock CLOSED. Due to the immiscible nature and density of the two liquids, they will eventually separate and form two layers.

The stopcock is slowly and carefully opened, allowing the bottom layer to flow out. Make sure stopcock is closed JUST before the end of the bottom layer, to ensure there is no contamination of oil with the water in the beaker.

Stopcock is opened again, with a new beaker underneath, to allow the little bit of water and a little bit of oil out, to ensure ONLY oil remains in the separatory funnel. Stopcock is closed after this.

Stopcock is opened again, with a third clean beaker underneath, to allow ALL of the oil to pass through.

Therefore, you have separated water and oil. See the attached image for a diagram of the setup.

To learn more about the separation of mixtures of immiscible liquids:

https://brainly.com/question/31032868

To solve this we must be knowing each and every concept related to ore and bauxite. Therefore, Bauxite is best used for making wires. The correct option is option B.

Aluminum's primary source of supply is bauxite. Due to its small weight and ease of molding into fine wire or sheets, aluminum is particularly useful.

All across the world, bauxite may be found. The greatest deposits of this ore are in Australia and Guinea, an African nation. Although bauxite was initially found in France, it may now be found all over the world, such as the Caribbean.

Therefore, Bauxite is best used for making wires. The correct option is option B.

To learn more about bauxite, here:

https://brainly.com/question/4372634

#SPJ1

Following are the effects of acid rain.

What is Acid Rain?

Acid rain is caused by the accumulation of nitric and sulfuric acids in the atmosphere. These compounds are strong acids and are very soluble in water, dissolving in droplets in clouds.

Limestone effect:

Calcium carbonate, [Ca][CO3], is a very common mineral. A limestone is a well-known form of calcium carbonate. The acid contained in acid rain reacts with carbonate ions and promotes the dissolution of calcium carbonate.

This will create a bicarbonate solution. The presence of limestone and other calcium carbonates in lakes and streams helps maintain a constant pH as the mineral reacts with excess acidity. However, acid rain can eventually exceed the buffering capacity of surface waters.

How does acid rain affect buildings made of marble and limestone?

It is mainly affected in 2 ways: dissolution and alteration. Calcite dissolves when sulfuric, sulfuric and nitric acids in polluted air react with calcite in marble and limestone. Exposed areas of buildings and statues show rough surfaces, worn materials, and loss of sculptural detail. Stoneface material can be lost anywhere or only in more reactive areas.

Hence, this is how acid rain affects.

To learn more about Acid Rain, click on the given link: https://brainly.com/question/718250

#SPJ1

The observation of a smaller outside hole than inside leads Becca to infer that an impact from the outside caused the hole, with a larger object striking and passing through the window from the inside.

From the observation that the hole in the window is smaller on the outside than on the inside, Becca, as a forensic technician, might deduce the following:

The hole was caused by an impact from the outside: The smaller outside hole suggests that the force that created the hole originated from the outside and exerted more pressure on the window surface facing inward.

The object causing the hole was larger on the inside: The discrepancy in hole sizes implies that the object that struck the window had a larger size or diameter on the inside, and as it penetrated the glass, it compressed or fragmented the glass, resulting in a larger hole on the inside.

The object may have passed through the window: The difference in hole sizes indicates that the object may have penetrated the window, potentially passing through to the inside. This could suggest a break-in or an incident involving the window being struck from the outside.

Overall, the observation of a smaller outside hole than inside leads Becca to infer that an impact from the outside caused the hole, with a larger object striking and passing through the window from the inside.

For more question on observation

https://brainly.com/question/29521469

#SPJ8

The calculated formula masses to 133.5 amu, we find that the substance with a formula mass closest to 133.5 amu is (d) AlCl3. Therefore, the answer is option D.

To identify the substance with a formula mass of 133.5 amu, we need to calculate the formula mass of each given substance and compare it to 133.5 amu.

(a) MgCl2:

The formula mass of MgCl2 can be calculated by adding the atomic masses of magnesium (Mg) and chlorine (Cl).

Mg: atomic mass = 24.31 amu

Cl: atomic mass = 35.45 amu

Formula mass of MgCl2 = (24.31 amu) + 2(35.45 amu) = 95.21 amu

(b) SCl:

The formula mass of SCl can be calculated by adding the atomic masses of sulfur (S) and chlorine (Cl).

S: atomic mass = 32.07 amu

Cl: atomic mass = 35.45 amu

Formula mass of SCl = 32.07 amu + 35.45 amu = 67.52 amu

(c) BCl:

The formula mass of BCl can be calculated by adding the atomic mass of boron (B) and chlorine (Cl).

B: atomic mass = 10.81 amu

Cl: atomic mass = 35.45 amu

Formula mass of BCl = 10.81 amu + 35.45 amu = 46.26 amu

(d) AlCl3:

The formula mass of AlCl3 can be calculated by adding the atomic mass of aluminum (Al) and 3 times the atomic mass of chlorine (Cl).

Al: atomic mass = 26.98 amu

Cl: atomic mass = 35.45 amu

Formula mass of AlCl3 = 26.98 amu + 3(35.45 amu) = 133.78 amu. Option D

For more such questions on masses visit:

https://brainly.com/question/24191825

#SPJ8

Answer:

Synthesis

Explanation:

Two reactants are becoming one product, so it is a synthesis reaction.

Decomposition is the opposite, so when one molecule becomes simpler atoms.

Example: 2NaCl -> Cl2 + Na

Combustion is reaction with a product of water and carbon dioxide.

Example: CH4 + 2O2 -> CO2 + 2H2O

Single displacement is when one atom takes the place of the other.

Example: K + NaCl -> KCl +Na (where K took the place of Na)

Double displacement is like single displacement but it happens twice. Think of it like the atoms exchanging partners.  

Example: HCl +NaH -> NaCl + HOH

Answer:

(i) N2(g)+3H2(g) -->2NH3(g) - When the equilibrium changes, the concentrations of all substances involved in the equilibrium must also change. For our equilibrium reaction: N2(g) + 3H2(g) ⇔ 2NH3(g) + Heat

(ii) 2 H2(g) + O2(g) --> 2 H2O(g) - Synthesis Reaction

HENCE BOTH THE REACTIONS COULD BE CLASSIFIED AS SYNTHEYIC REACTION

PLEASE DO MARK MY ANSWER AS THE BRAINLIEST..

<HOPE IT HELPS>

Answer:

i THINK the answer to this is C) aldehyde

Answer:

The answer is C, the guy above is correct.

Explanation:

Answer:

positive and negative

Explanation:

ik its prob not helpful now but ye sorry no ones answered lol

The phrase related to electromagnetism which can applied only to electric force is positive and negative. The two charges are forming electric force. Whereas, the two poles are forming the magnetic field.

Electromagnetism is the magnetic field generated by an electric field. The strength of each field is directly proportional to the each other. The magnetic field lines are perpendicular to the electric field lines.

The electric force is generated by two charges positive charge and negative charges. The like charges will repels and unlike charges will attracts each other.

Similarly magnetic south and north poles, generates magnetic filed. The two like poles will repel each other and unlike poles will attracts each other. Hence, the negative and positive terms are related to the electric force.

Find more on electric force:

https://brainly.com/question/29141236

#SPJ2

1.95 g of glucose will yield 0.0650 moles of water.

Glucose is described as a simple sugar with the molecular formula C₆H₁₂O₆ which is overall the most abundant monosaccharide, a subcategory of carbohydrates.

From the question, One more glucose reacts with oxygen to produce carbon dioxide and water.

The molar mass of glucose = 180.156 g/mol

Therefore mole = mass/ molar mass

mole = 1.95/ 180.156

mole = 0.0650  moles of water.

In conclusion, glucose occurs naturally in two distinct types of molecular arrangements known as L-glucose and D-glucose isomers.

Learn more about glucose at: https://brainly.com/question/397060

#SPJ1

Answer:

3 electrons more

explanation

minus sign in chemistry means more

homeworkstudycom

Answer:

1.  Solubility will increase, because as T increases the − Δ H ∘ R T −ΔH∘RT term becomes smaller therefore K will get larger.

2. To ensure the dissolution process was at equilibrium.

Explanation:

Given that;

ΔG°= -RTlnK

and

ΔG° = ΔH° - TΔS°

So;

-RTlnK = ΔH° - TΔS°

lnK = ΔH°/-RT - TΔS°/-RT

lnK = -(ΔH°/RT) + ΔS°/R

K = e^-(ΔH°/RT) + ΔS°/R

Hence, Solubility will increase, because as T increases the − Δ H ∘ R T −ΔH∘RT term becomes smaller therefore K will get larger.

2.

Since solubility is an equilibrium process, it means that some undissolved solute must be present in order to determine the solubility product correctly.

Solubility is the ability of the solute to dissolve in the solution. As temperature increases, the solubility increases, and the presence of solid ensure dissolution.

The Gibbs free energy is the change in the energy of a system from the energy present in the reactant towards the product formation.  

It is given as,

\(\rm \Delta G^{\circ}= \rm -RTlnK \\\\\rm \Delta G ^{\circ} = \Delta H ^{\circ} - T\Delta S ^{\circ}\)

Equating both equations we get:

\(\begin{aligned} \rm -RTlnK &= \rm \Delta H ^{\circ} - T\Delta S ^{\circ}\\\\\rm lnK &=\rm -(\dfrac{\Delta H ^{\circ}}{RT}) + \dfrac{\Delta S ^{\circ}}{R}\\\\\rm K &=\rm e^{-(\frac{\Delta H ^{\circ}}{RT}) + \frac{\Delta S ^{\circ}}{R}}\end{aligned}\)

Thus, the solubility of the substance increases with an increase in temperature.

The solubility product is estimated correctly by the equilibrium process that ensures the presence of the undissolved solute particles.

Therefore, 1. option A. solubility increases and 2. option B. to ensure the equilibrium process are the correct options.

Learn more about solubility here:

https://brainly.com/question/14092287

The Sun-Earth-Moon system is important because it sustains life on Earth, regulates Earth's climate, and influences natural phenomena like tides.

The Sun-Earth-Moon system plays a vital role in supporting and sustaining life on Earth. The Sun is the primary source of energy for our planet, providing heat and light necessary for photosynthesis, the process by which plants convert sunlight into food and oxygen. Sunlight is also crucial for maintaining Earth's temperature and driving weather patterns.

The Moon, as Earth's only natural satellite, contributes to several essential functions. Its gravitational pull creates the tides, which influence coastal ecosystems and shape coastal landscapes.

The Moon's orbit also stabilizes Earth's axial tilt, providing a stable climate for life to thrive. Additionally, the Moon's phases have cultural and historical significance, influencing human activities such as agriculture, navigation, and calendar systems.

The Sun-Earth-Moon system's interactions are responsible for natural phenomena like eclipses, both solar and lunar, which have fascinated humans throughout history and continue to be important for scientific study and exploration.

Understanding these celestial events enhances our knowledge of astrophysics and helps us comprehend the vastness and complexity of the universe.

Furthermore, the study of the Sun-Earth-Moon system provides insights into celestial mechanics, orbital dynamics, and the broader field of planetary science. By examining the interplay between these celestial bodies, scientists can gain a deeper understanding of Earth's place in the universe and explore potential habitable conditions on other celestial bodies.

Overall, the Sun-Earth-Moon system is of immense importance as it sustains life, regulates climate, influences natural phenomena, and provides a platform for scientific exploration and discovery.

For more question on climate visit:

https://brainly.com/question/12801279

#SPJ8

The correct option is (D) None of the Above since none of the given plants belong to the category of nitrogen fixing plants.

What is Nitrogen Fixation?

To learn more about Nitrogen Fixation from the given link

https://brainly.com/question/18850477

#SPJ1

Answer: The molecular formula for the given organic compound X is \(C_6H_{8}O_7\)

Explanation:

We are given:

Mass of \(CO_2=4.13g\)

Mass of \(H_2O=1.13g\)

We know that:

Molar mass of carbon dioxide = 44 g/mol

Molar mass of water = 18 g/mol

For calculating the mass of carbon:

In 44g of carbon dioxide, 12 g of carbon is contained.

So, in 4.13 g of carbon dioxide, =\(\frac{12}{44}\times 4.13=1.13g\) of carbon will be contained.

For calculating the mass of hydrogen:

In 18g of water, 2 g of hydrogen is contained.

So, in 1.13 g of water, \(\frac{2}{18}\times 1.13=0.125g\) of hydrogen will be contained.

Mass of oxygen in the compound = (3.00) - (1.13+ 0.125) = 1.75 g

To formulate the empirical formula, we need to follow some steps:

Step 1: Converting the given masses into moles.

Moles of Carbon =\(\frac{\text{Given mass of Carbon}}{\text{Molar mass of Carbon}}=\frac{1.13g}{12g/mole}=0.094moles\)

Moles of Hydrogen =\(\frac{\text{Given mass of Hydrogen}}{\text{Molar mass of Hydrogen}}=\frac{0.125g}{1g/mole}=0.125moles\)

Moles of Oxygen =\(\frac{\text{Given mass of oxygen}}{\text{Molar mass of oxygen}}=\frac{1.75g}{16g/mole}=0.109moles\)

Step 2: Calculating the mole ratio of the given elements.

For the mole ratio, we divide each value of the moles by the smallest number of moles

For Carbon = \(\frac{0.094}{0.094}=1\)

For Hydrogen = \(\frac{0.125}{0.094}=1.33\)

For Oxygen = \(\frac{0.109}{0.094}=1.16\)

Step 3: Taking the mole ratio as their subscripts.

The ratio of C : H : O = 1: 1.33: 1.16

Converting them into whole number ratios by multiplying by 6:

The ratio of C : H : O = 6: 8: 7

Hence, the empirical formula for the given compound is \(C_6H_8O_7\)

Empirical mass = \(6\times 12+8\times 1+7\times 16=192g\)

The equation used to calculate the valency is :

\(n=\frac{\text{molecular mass}}{\text{empirical mass}}\)

Putting values in above equation, we get:

\(n=\frac{192g/mol}{192g/mol}=1\)

Multiplying this valency by the subscript of every element of empirical formula, we get:

\(C_6H_8O_7\times 1=C_6H_{8}O_7\)

Thus molecular formula for the given organic compound X is \(C_6H_{8}O_7\)

The half-life of the phosphorus-32, given the data is 14.3 days

Half-life is the time taken for half a material to decay.

We'll begin by obtaing the number of half-lives that has elapsed. This can be obtained as follow:

2ⁿ = N₀ / N

2ⁿ = 1.2 / 0.3

2ⁿ = 4

Express 4 in index form

2ⁿ = 2²

n = 2

Thus, 2 half-lives has elapsed.

The half-life of the phosphorus-32 can be obtained as follow:

t½ = t / n

t½ = 28.6 / 2

t½ = 14.3 days

Thus, the half-life of the phosphorus-32 14.3 days

Learn more about half life:

https://brainly.com/question/26374513

#SPJ1

With carbon dioxide, the phase change that takes place when the temperature decreases from -40°C to -80°C at 2 atm is Option B. A gas changes to a solid.

When the temperature decreases from -40°C to -80°C at 2 atm, the pressure and temperature of the carbon dioxide falls within the region in the phase diagram where the substance changes from a gas to a solid. This process is called deposition or sublimation.

Therefore, the correct answer is as given above. It could then be concluded that the phase change that takes place when the temperature decreases from -40°C to -80°C at 2 atm is Option B. A gas changes to a solid.

learn more about sublimation: https://brainly.com/question/20319173

#SPJ1

Answer:

1. i think 1. What is the electron arrangement for a boron ion?

2.boron atom contains five protons, five neutrons, and five electrons.

Explanation: