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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.


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)


Two PANSIT reacts with six SILING LABUYO to form

a HOT Pansit according to the following BALANCED

equation.

2P + 6 SB • 1 HP

How many Hot Pansit can be formed using 10 Pansit and 24 Siling Labuyo?

b. What is the limiting reactant?

c. What is the excess reactant?

d. How much is left over?

e. Use the balanced equation to answer the following question. One Pansit has a

mass of 5.0 grams and one Siling Labuyo has a mass of 1.0 gram. How many

Hot Pansit can be made from 40.0 grams of Pansit and 26.0 grams of Siling

Labuyo?

(show your solution)