Balancing chemical equations...?

Question

I need help please with these...Please explain it to me if possible...

1: Write balanced chemical equations for the following reactions:
a) potassium metal is added to water forming potassium hydroxide solution and hydrogen gas

b) copper metal is heated in oxygen gas to form copper (II) oxide

c) ammonia gas reacts with chlorine gas to form nitrogen and hydrogen chloride gases

d) solid potassium chlorate is heated and decomposes to produce solid potassium chloride and oxygen gas

e) lead nitrate solution reacts with sodium sulfate solution to produce sodium nitrate solution and solid lead sulfate

(note: this isn't multiple choice)

2: Write in words what is meant by the following equations (mention moles and subscripts).
a) 2Pb(NO3)2(s) -(arrow) 2PbO(s) + 4NO2(g) + O2(g)

b) NH3(g) + 5/4O2(g) - (arrow) 3/2H2O(g) + NO(g)

Thankyou for helping me.

Answer 1

f) lay your teach out

Answer 2

This is stuff you do in middle school for homework. To do this, look at a periodic table. Iook at how many valence electrons each has to find out its charge. To balance an equation, just have different amounts of each element to make the overall cahrge 0. Or, if your balancin an equation, you need to balance the subscripts and coefficients.

Answer 3

i believe letter b is: 2,1,2 not sure if you want moles or molecules though