In the formation of an ionic compound, electrons are shared between atoms. a. true
b. false

Answers

Answer 1

Answer:

Its False, because in the formation of an ionic compound, an atom gains or loses an electron.

Answer 2

Answer: true i just now because i did it in school

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1. What is the empirical formula for a compound containing 63.8% N and 36.2% O?a. N₂O₅
b. N₂O₃
c. NO₂
d. NO
e. N2₂O

Answers

$M\ N_2=28g/mol\n 63,8\%--28g\n 100\%--x\n x=43,89g$

43,89g≈44g
44g == 2x 14g (N) + 1x 16x(O)
M N₂O = 44g

In which compound is the percent compositionby mass of chlorine equal to 42%?(1) HClO (gram-formula mass = 52 g/mol)
(2) HClO2 (gram-formula mass = 68 g/mol)
(3) HClO3 (gram-formula mass = 84 g/mol)
(4) HClO4 (gram-formula mass = 100. g/mol)

Answers

The percentage mass composition of chlorine in HClO₃ is 42%.

What is the percentage mass composition of chlorine in each compound?

Percentage mas of chlorine is calculated as follows:

Percentage mass composition = mass of element * 100%/mass of compound

atomic mass of chlorine = 35.5

(1) In HClO (gram-formula mass = 52 g/mol)

Percentage mass composition = 35 * 100% / 52 = 67.3%

(2) In HClO2 (gram-formula mass = 68 g/mol)

Percentage mass composition = 35 * 100%/68 = 51.4%

(3) HClO3 (gram-formula mass = 84 g/mol)

Percentage mass composition = 35 * 100% / 84 = 42%

(4) HClO4 (gram-formula mass = 100. g/mol)

Percentage mass composition = 35 * 100% / 100 = 35.5%

Therefore, the percentage mass composition of chlorine in HClO₃ is 42%.

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Final answer:

None of the compounds have a percent composition of chlorine equal to 42%.

Explanation:

To find the compound with a percent composition of chlorine equal to 42%, we calculate the mass of chlorine in each compound and calculate the percent composition. Let's go through each option:

HClO: H = 1g/mol, Cl = 35.5g/mol. Percent composition of Cl = (35.5/52) * 100% ≈ 68.3%. Not equal to 42%
HClO2: H = 1g/mol, Cl = 35.5g/mol. Percent composition of Cl = (2 * 35.5/68) * 100% ≈ 104.4%. Not equal to 42%.
HClO3: H = 1g/mol, Cl = 35.5g/mol. Percent composition of Cl = (3 * 35.5/84) * 100% ≈ 150%. Not equal to 42%.
HClO4: H = 1g/mol, Cl = 35.5g/mol. Percent composition of Cl = (4 * 35.5/100) * 100% = 142%. Not equal to 42%.

None of the compounds have a percent composition of chlorine equal to 42%. The correct answer is none of the above.

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In the equation N2(g) + 3H2(g) → 2NH3(g), how many liters of hydrogen combines with 10 liters of nitrogen?

Answers

5 hydrogens combine is the answer

What are some of the activities performed during experiment

Answers

Make a hypothesis or prediction about the results of the experiment. Determine the methods involved in conducting the experiment. Acquire necessary helpers and materials. Test the materials and the experimental design, as needed, before conducting the experiment.

Which iron pot has the least thermal energy?A. A5 kg pot at 130°C
B. A 2 kg pot at 120°C
C. A 5kg pot at 25°C
D. A 2 kg pot at 25°C

Answers

Final answer:

The 2 kg pot at 25°C has the least thermal energy because it has both a smaller mass and a lower temperature than the other options.

Explanation:

The thermal energy of an object is related to both its mass and its temperature. In this case, we are considering iron pots of different masses and temperatures. Given the options, the 2 kg pot at 25°C would have the least thermal energy. This is because it has both a smaller mass and a lower temperature than all the other options listed.

The thermal energy is calculated by multiplying the mass, specific heat, and change in temperature. An object with a smaller mass and lower temperature would therefore have less thermal energy.

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Answer: D. A 2 kg pot at 25C.

Explanation:

Although wave power does not produce pollution, some people may not want to invest in it because it is _____.

Answers

Answer:

Prone to storm damage and limited to particular areas of the ocean

Explanation:

Hello,

Even when the wave power is beneficent towards the environment care, it has a notable disadvantage when high energy waves are took by the energy stations by cause of electrical failures which lead to the station breakdown. On the other hand, there are hard-to-access areas in the ocean which restricts the enforcement of this type of energy.

Best regards.

The correct answer for the question that is being presented above is this one: "Although wave power does not produce pollution, some people may not want to invest in it because it harms marine life and its difficult to mountain it also disturbs the route of the ships."

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