Chemistry Answers

Calculate the Kc of the reaction below if the equilibrium concentrations of Ag and IO3 are both 1.78×10-⁴M

Write the Kc expression for the reversible reaction of PCI5 done at equilibrium conditions.

So, give the balanced formula for rusting, 4Fe+3O2+6H2O= 4Fe(OH)3, what would be the charges of the 4 iron atoms at the beginning, meaning how many valance electrons would they have? I understand this is a really dumb question, but i can just not find the answer. Can anyone kindly help my stupid self, please?

Calculate the number of moles of hydrogen atoms in one mole of (NH4)2SO4.

[1] 1

[2] 2

[3] 4

[4] 8

[5] 15

Identify the type of reagent that is required to convert N2H4 to N2?

[1] acid

[2] base

[3] reducing agent

[4] oxidizing agent

[5] precipitating agent 

By applying the solubility guidelines, state which of the following compounds will precipitate in water?

[1] Cobalt (II) hydroxide.

[2] Sodium nitrate.

[3] Ammonium phosphate.

[4] Potassium Chloride.

[5] None of the above.

What does protein do in the human body?

A gas occupies a volume of 400.0 ml at 29⁰C and 1.15 atm if the pressure is held constant by how much should the temperature be decreased so that the volume decreases to 361.6 ml

Answer the following questions based on YOUR OWN UNDERSTANDING. Please do not copy paste:(

1. The greater the molar heat of vaporization of a liquid, the greater its vapor pressure. Is this true or not? Explain why or why no

A 0.477 mol sample of O_{2} gas has a volume of 10.9 L at a certain temperature and pressureIf all this O_{2} were converted to ozone (O_{3}) at the same temperature and pressure, what is the ozone volume (in liters)? 3O 2 (g) 2O 3 (g)