The group of chemical element which an atom from group 2A forms an ionic bond with is most likely from group 7A
What element an atom from group 2A forms Ionic bond with from group 7AAn ionic bond can formed between calcium from from group 2A and fluorine from group 7A to form calcium fluoride. In order words, Calcium fluoride is an ionic chemical compound which is insoluble in water. Calcium fluoride is composed of calcium ion and fluoride ion.
In conclusion, it can be deduced from the explanation given above that calcium fluoride is an ionic compound.
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what is chemistry ? Explain its types.
Answer:
Fundamentally, chemistry is the study of matter and change. The way that chemists study matter and change and the types of systems that are studied varies dramatically. Traditionally, chemistry has been broken into five main subdisciplines: Organic, Analytical, Physical, Inorganic and Biochemistry.
Explanation:
hope this helps
Sample H is a mineral found in this sand! This mineral is black and will stick to you when you walk through the sand at the beach. Zoom in really close - sand is very cool to look at when it is magnified. We will look at more later in the class. The sand grains that you should focus on are black. Not all of the black grains are the same mineral however the mineral you're looking for is strongly magnetic. If you ran a magnet just over the top of this sample, some of black sand grains would stick. What mineral is it?
The mineral that's illustrated based on the information given will be magnetite.
What is a mineral?A mineral simply means any pure substance that has a unique composition and structure.
Since the mineral is black and will stick to you when you walk through the sand at the beach, it's magnetite.
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what is the ionic compound formula sodium nitride?
Answer:
In ionic compounds, the charges of constituent ions must balance. This can be achieved by having three sodium ions per nitride ion. Therefore, the formula of sodium nitride is Na3N
Explanation:
Answer:
the charges of constituent ions must balance. This can be achieved by having three sodium ions per nitride ion. Therefore, the formula of sodium nitride is Na3N
Explanation:
Calculate the solubility at 25°C of BaCrO4 in pure water and in a 0.0190M BaCl2 solution. You'll find Ksp data in the ALEKS Data tab. Round both of your answers to 2 significant digits.
The solubility product constant (Ksp) for BaCrO4 is 1.17 x 10^-10 at 25°C. a) Solubility of BaCrO4 in pure water at 25°C:
The solubility of BaCrO4 in pure water at 25°C can be found using the following equation:
Ksp = [Ba2+][CrO42-]
where [Ba2+] and [CrO42-] are the molar solubility of BaCrO4 in water.
Since BaCrO4 dissociates to give one mole of Ba2+ and one mole of CrO42-, we can assume that the molar solubility of BaCrO4 is equal to the molar solubility of Ba2+ or CrO42-. Let x be the molar solubility of BaCrO4 in pure water, then:
Ksp = [Ba2+][CrO42-] = x * x = x^2
1.17 x 10^-10 = x^2
x = sqrt(1.17 x 10^-10) = 1.08 x 10^-5 M
Therefore, the solubility of BaCrO4 in pure water at 25°C is 1.08 x 10^-5 M.
b) Solubility of BaCrO4 in a 0.0190 M BaCl2 solution at 25°C:
When BaCrO4 is dissolved in a 0.0190 M BaCl2 solution, it will react with Ba2+ from the BaCl2 solution to form BaCrO4(s). The equilibrium expression for this reaction is:
BaCrO4(s) + Ba2+ + 2Cl- <-> BaCrClO4(s) + 2Cl-
The solubility of BaCrO4 in a 0.0190 M BaCl2 solution at 25°C can be found using the following equation:
Ksp = [BaCrO4][Ba2+] = (x)(0.0190 + x)
Since the initial concentration of Ba2+ in the solution is 0.0190 M, and x is the additional concentration of Ba2+ that comes from the dissolution of BaCrO4, we can assume that the total concentration of Ba2+ in the solution is 0.0190 + x.
The solubility of BaCrO4 in the solution can be found by solving for x:
Ksp = (x)(0.0190 + x)
1.17 x 10^-10 = x^2 + 0.0190x
Assuming x is much smaller than 0.0190 (which is reasonable since Ksp is very small), we can simplify the equation:
1.17 x 10^-10 = 0.0190x
x = 6.14 x 10^-9 M
Therefore, the solubility of BaCrO4 in a 0.0190 M BaCl2 solution at 25°C is 6.14 x 10^-9 M.
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Radon-222 is an alpha emitter with a half life of 3.82 days.
1. What is the mass number of the daughter isotope?
2. What is the element symbol of the daughter isotope?
3. What is the atomic number of the daughter isotope?
The daughter isotope (a decay product): Polonium (Po)
Further explanationRadioactivity is the process of unstable isotopes to stable isotopes by decay, by emitting certain particles,
alpha α particles ₂He⁴ beta β ₋₁e⁰ particles gamma particles γ positron particles ₁e⁰
Radon-222 emits alpha α particles ₂He⁴ , so the atomic number decreases by 2, mass number decreases by 4
Reaction
\(\tt _{86}^{222}Rn\Rightarrow _{84}^{218}+_2^4He\)
1. The mass number of the daughter isotope = 218
2 and 3. If we look at the periodic system, the element with atomic number 84 is Polonium (Po)
Provide the missing reagents and organic structures needed to most efficiently produce the target product. The starting material is a cycloalkene, C6H10. Chirality centers must be shown using wedge and hatched bonds (as shown in the product); include hydrogen on any chirality centers.
The chirality center is represented by a carbon atom bonded to four different substituents - hydrogen (H), methyl group (CH3), hydroxyl group (OH), and bromine (Br). To efficiently produce the target product from the starting material, a cycloalkene C6H10, you will need the following reagents and organic structures:
1. Reagents:
- Bromine (Br2) to perform bromination of the cycloalkene.
- Sodium hydroxide (NaOH) to hydrolyze the bromoalkane intermediate.
- Acetone (CH3COCH3) to dissolve the reagents and act as a solvent.
- Methanol (CH3OH) to react with the hydrolyzed product.
2. Organic Structures:
- The cycloalkene starting material (C6H10) needs to be represented with six carbons arranged in a cyclic fashion.
- The product is a chiral alcohol, which means it has a chirality center. It is shown with a wedge bond pointing towards you and a hatched bond pointing away from you.
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how many grams of carbon are required to produce 75 L of CH4 (g) at STP
Answer: 62.4g according to a quizlet
Explanation:
Calculate the ΔG for the following system. Then state if the system is spontaneous or not spontaneous.
ΔH = 147 kJ
ΔS = -67.0 J/K
T = 149 °C
A.)-8.3 kJ; not spontaneous
B.)3.5 x 10 4 kJ; not spontaneous
C.)-41 kJ; spontaneous
D.)3.5 x 10 4 kJ; spontaneous
E.)-8.3 kJ; spontaneous
F.)-41 kJ; not spontaneous
Answer:
B
Explanation:
How many grams are 1.20 x 1025 molecules of calcium iodide?
Answer:
1230
Explanation:
1.20×1025=1230 is your answer
When mud and water are combined the result is a
Answer:
More wetter mud
I hope this was helpful
Answer:
Mud is solid, but when mixed with water it changes its shape. ... Particles of mud become suspended in the water added, and the water molecules interacting with the mud particles allow the mud to 'loosen up' and change shape.
Hope my answer helped! Happy Holidays! :)
Explanation:
PLEASE HELP!! :((((((((((((((((((((((((
Where is the word problems? Like the problems that you have to put it in.
Explanation:
24
Calculate the amount of heat in joules needed to increase the temperature of 350 g of water from 20°C to 56 °C. The specific heat of water is
4.18 J/gºc
Answer:
Q = 52668 J
Explanation:
Given data:
Amount of heat required = ?
Mass of water = 350 g
Initial temperature = 20°C
Final temperature = 56°C
Specific heat capacity of water = 4.18 J/g°C
Solution:
Formula:
Q = m.c. ΔT
Q = amount of heat absorbed or released
m = mass of given substance
c = specific heat capacity of substance
ΔT = change in temperature
ΔT = 56°C - 20°C
ΔT = 36°C
Q = 350 g× 4.18 J/g°C ×36°C
Q = 52668 J
how many moles of potassium oxide will be formed when 1.52 moles of potassium reacts with oxygen according to the following reaction 4K+O2-2 K2O
In this reaction, for every 4 moles of potassium, 2 moles of potassium oxide will be formed. Therefore, if 1.52 moles of potassium react with oxygen, 0.76 moles of potassium oxide will be formed.
What is potassium?Potassium is an important mineral, essential for the proper functioning of cells, tissues, and organs. It is an electrolyte, meaning it helps to regulate the balance of fluids in the body and helps to transmit nerve impulses. Potassium is also involved in muscle contraction, energy production, and digestion. Foods high in potassium include fruits, vegetables, dairy products, legumes, and nuts. A diet rich in potassium may help to prevent hypertension, stroke, and kidney stones. Additionally, low levels of potassium can cause muscle weakness, fatigue, and decreased mental alertness. It is important to maintain a healthy balance of potassium in the body and speak to a doctor or registered dietitian if levels become too low or too high.
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HI!! I need help, who has more energy red lights or radio waves?
Answer:
Red Lights
Explanation:
What are the sublevels in an energy level of n=3?
s, p, d
Explanation:
the number of sublevels for an energy level is as follows:
for n = 1 : s
for n = 2 : s, p.
for n = 3 : s, p, d.
for n = 4 or higher : s, p, d, f.
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Rosalinda is thirsty and wants to make a glass of lemonade as quickly as possible. She needs to add sugar to lemon juice and water to make the lemonade. Which type of sugar should she use?
Group of answer choices
granulated sugar with fine grains
sugar formed into cubes
raw sugar with coarse grains
sugar from rock candy
Answer:
she use granulated sugar with fine grains as it is easily dissolved so she used in lemonade.
does a reaction occur when aqueous solutions of barium hydroxide and manganese(II) acetate are combined. The net ionic equation for this reaction is:
Write a net ionic equation for the reaction that occurs when aqueous solutions of sodium hydroxide and hydroiodic acid are combined.
Write a net ionic equation for the reaction that occurs when aqueous solutions of hypochlorous acid and potassium hydroxideare combined.
Write a net ionic equation for the overall reaction that occurs when aqueous solutions of phosphoric acid and sodium hydroxideare combined. Assume excess base.acetate and barium hydroxide are combined?
Yes, a reaction occurs when aqueous solutions of barium hydroxide and manganese(II) acetate are combined. The net ionic equation is:
Ba^(2+) + 2 OH^(-) + Mn^(2+) + 2 CH3COO^(-) -> Ba(CH3COO)2 + Mn(OH)2
1. Write the balanced molecular equation:
Ba(OH)2 + Mn(CH3COO)2 -> Ba(CH3COO)2 + Mn(OH)2
2. Write the complete ionic equation:
Ba^(2+) + 2 OH^(-) + Mn^(2+) + 2 CH3COO^(-) -> Ba^(2+) + 2 CH3COO^(-) + Mn^(2+) + 2 OH^(-)
3. Identify spectator ions (ions that do not change):
Ba^(2+) and CH3COO^(-)
4. Remove spectator ions to find the net ionic equation:
Ba^(2+) + 2 OH^(-) + Mn^(2+) + 2 CH3COO^(-) -> Ba(CH3COO)2 + Mn(OH)2
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Which statement about paper chromatography is correct?
A A solvent is needed to dissolve the paper.
B
Paper chromatography separates mixtures of solvents.
с
The solvent should cover the baseline.
D The baseline should be drawn in pencil.
None of the given options is entirely correct.
With paper chromatography, mixtures of substances are separated according to how well they dissolve in a solvent and how well they stick to the paper's fibers.
What is paper chromatography?A laboratory method called paper chromatography is used to separate mixtures of substances into their constituent parts. It is founded on the idea that different substances would flow through a stationary phase (in this case, a sheet of paper) at varying rates depending on how soluble they are in a particular solvent.A small amount of the mixture is put on a strip of filter paper close to one end for paper chromatography. In a container with a tiny amount of suitable solvent in the bottom, the paper is then placed upright. The various parts of the mixture are carried up the paper by the solvent as it rises. Depending on their solubility and capacity to cling to the paper fibers, the components migrate over a range of distances.learn more about paper chromatography here
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what data did you collect to indicate that the identity of your product was aspirin? what did your results indicate about the purity of the product? g
To demonstrate the synthesis of aspirin, data such as the appearance of the product (colour, texture), yield (amount of product obtained), and spectral data (such as infrared spectroscopy) that can prove the existence of the aspirin functional groups would normally be collected.
The purity of the aspirin obtained may be determined using techniques such as thin-layer chromatography (TLC) or high-performance liquid chromatography (HPLC), which can detect the presence and amount of contaminants.
Furthermore, melting point determination may be utilized to determine the purity of an aspirin product.
If the observed melting temperature matches the anticipated melting point of pure aspirin (159°C), it demonstrates purity.
Thus, this way, one can collect data asked.
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Your question seems incomplete, the probable complete question is:
What data did you collect to indicate that you produced aspirin? What did your results indicate about the purity of the aspirin you obtained? Explain your answers. Given that the melting point acid is 159 degree C, can you be certain that the product you isolated was not pure salicylic acid that was of salicylic be that the product you was unchanged during the reaction?
Write the rate of reaction in terms of the rate of disappearance of reactant and the rate of formation of the product NO(g) +O3 _NO2(g) + O2(g)
Answer:
See Explanation
Explanation:
The rate of reaction means the same thing as the speed of a reaction. It refers to how quickly or slowly the reactants disappear or how quickly or slowly the products appear per unit time.
The equation of the reaction is; NO(g) + O3(g)→ NO2(g) + O2(g)
We can write differential equations to show the rate of disappearance of reactants or rate of appearance of products as shown below where the rate of reaction has been denoted as r;
r = -d[NO(g)]/dt = -d[O3(g)]/dt
OR
r = d[NO2(g)]/dt = d[O2(g)]
The negative signs shows that the concentration of reactants decreases with time while the positive sign shows that the concentration of products increases with time.
C. Use the data provided in Table 2 to complete the following.
Sketch a phase diagram for O₂. The diagram should be roughly to
scale and include the Triple point and Critical point.
The triple point can be seen from the graph that has been attached here.
What is the triple point?The triple point is a special combination of temperature and pressure where the equilibrium of a substance's three phases—solid, liquid, and gas—occurs. The transition between phases happens with no discernible net change in the substance because the solid, liquid, and gas phases are in perfect equilibrium at the triple point.
A crucial reference point in thermodynamics, the triple point is frequently used to specify temperature scales and calibrate thermometers. Each substance has a specified value for temperature and pressure.
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The Hawaiian Islands are a series of volcanic islands that have been formed the past few million years. They are located near the center of the Pacific plate, where new islands form as the plate passes over a fixed hot spot in Earth’s mantle.
A.The movement will not affect the islands.
B.New islands will form as the Pacific plate moves over the hot spot.
C. Older islands will grow larger as they move farther from the hot spot.
D. The youngest island will grow larger as lava erupts onto its surface forming new rock.
E. Older islands will erode and will become smaller landmasses over time.
F. A new plate will create a ridge through the center of the island chain.
Answer:
B, C and D
Explanation:
Explain how you know the charge of a nickel ion given a formula and a name.
Uranium-235 undergoes the following fission process after absorbing a neut
235/92U + 1/0n → 93/36Kr + 140/56Ba + 1/0xon
X=
Answer:
yes correct
Explanation:
Answer: x = 2
Explanation:
The cows in a rancher's herd of cattle have been selectively bred to
produce milk. Which of the following will cause the next generation of
cows to receive the trait for producing large quantities of milk?
a. nutrients in the cows' food
b. essential minerals in the cows' water
c. electrical impulses in the cows' brains
d. information in the cows' chromosomes
Answer:
Information in the cows chromosomes answer d
Explanation:
How does Lori make the solution?
Answer:
I would say the top one but im not confident in the answer
how many half lives would it take for 6.02 x10^23 nuclei to decay at 6.25% (0.376x10^23) of the original number of nuclei
The number of half lives necessary for a given number of nuclei to decay to a specific proportion of their initial number depends on the nuclei's rate of decay. In this instance, the original number of nuclei is indicated to be 6.02x1023, while the percentage of decay is given to be 6.25%, or 0.376x1023.
We may use the equation N(t) = N_0*(1/2)t, where N(t) is the amount of nuclei at time t, N_0 is the starting quantity of nuclei, and t is the number of half lives, to calculate the necessary number of half lives.
We may solve for t by rearranging this equation, giving us t = log_2(N_0/N(t)). Using the supplied numbers as inputs, we obtain t = log_2(6.02x1023/0.376x1023), which is abbreviated to t = 5.7. As a result, it would require 5.7 half.
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What happens if kinetic energy of a gas is lowered
Answer:
"If you lower the kinetic energy of a gas its temperature will decrease because temperature is a measure of the average kinetic energy of a substance."
Explanation:
Please answer this. Look at the picture for the questions, Thanks!
balance this equation
PB3 O4 + H2 → PB + H2O
Answer:
Pb3O4 + 4H2 → 3Pb + 4H2O
Explanation:
Pb3O4
Tritium - H2
Molar Mass of H2 Bond Polarity H-3 Hydrogen-3 3H T
Products
Lead - Pb
Molar Mass of Pb Plumbum Element 82 Bulk Lead
Water - H2O
Molar Mass of H2O Oxidation Numbers of H2O Dihydrogen Monoxide Dihydridooxygen Hoh Hydrogen Hydroxide Dihydrogen Oxide Oxidane Hydrogen Oxide Pure Water