Question

Can someone check my answers? to the following
1) The Decomposition of potassium chlorate KCLO3 is used as a source of oxygen in the laboratory. How many moles of KCL3 are needed to produce 15 mol of oxygen.
My answer: KCLO3----> KCL+O2
KCLO3----> 2KCL+3O2
15 mol of O* 2 mol Kclo3 per 3 mol= moles of KCLO3
moles of O* moles of KCLO3/ moles of O(15 moles of o*2 moles kclo3)/3 mol O= 10 mol KCLo3

2) when copper metal is added to silver nitrate in a solution silver metal and copper 2 nitrate are produced. mass of silver produced from 100. g of cu

2ag+cu-->cu2+2ag
339.5 g sliver

Answer 1

3) If 20.5g chlorine is reacted with 20.5 g na wich reactant is excess ow do you know.
cl2+2na-->2nacl so cl2=na1;2 cl2 mass 20.5/70.9=0.289 na mass 20.5/23= 0.891 sodium is exess cause there more of it

Answer 2

3) If 20.5g chlorine is reacted with 20.5 g na wich reactant is excess ow do you know.
cl2+2na-->2nacl so cl2=na1;2 cl2 mass 20.5/70.9=0.289 na mass 20.5/23= 0.891 sodium is exess cause there more of it

Answer 3

Carbon reacts with steam h20 at high temptures to produce hydrogen and carbon monoxide if 2.40 mol carbon are exposed to 3.10 steam identify limiting

My work- c+h20--> co+h2
2.4 moles carbon/1=2.4
water is 3.1/1 so carbon is limiting and water is excess

Answer 4

@zepdrix @iheartfood

Answer 5

@zoomiemoo