# mari

### Help please with explanation?

The decomposition of potassium chlorate produces potassium chloride and oxygen gas. The

decomposition of a sample of potassium chlorate produces 4.84g of oxygen and 7.51g of

potassium chloride. What mass of oxygen will be produced from the decomposition of a 3.45g

sample of potassium chlorate?

Also, are decomposition problems doner differntly? or is there a tip on how to approach them?

1 AnswerChemistry2 months ago### Help please, with explanation?

A 15.000g sample of chloroform is found to contain 1.171 g of carbon and 13.829 g of chlorine.

a. Determine the mass of chlorine in a second sample of chloroform that contains 4.157 g of carbon.

Chemistry2 months ago### Help please? Show steps as well?

What mass of hydrogen atoms are in 185 g of zinc hydroxide: Zn(OH)2 (Mw. 99.43)?

1 AnswerChemistry2 months ago### Help Please?

Determine the wavelength of light emitted or absorbed by a hydrogen atom when an electron transitions from n = 9 to n = 5. Give your answer in units of nm.

2 AnswersChemistry2 months ago