Two chemical questions

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I have the final answers for these two questions (Attached) and I need the step by step answers:

Question 1:

Balance the following equation and indicate what kind of reaction it is. (synthesis, decomposition, single replacement, double replacement, combustion, neutralization, redox)

Cu(s)+HNO3(aq)→Cu(NO3)2(aq)+H2O(l)+NO(g)

What is the mass of the solute in 0.750L of 1.35 M HNO3? (Record to the thousandth’s place.) 63.798 g

If 12.8g of Cu is reacted with 0.750mL of 1.35M HNO3, 2.55 g of NO is produced.

  1. What is the limiting reactant? CU
  2. What is the theoretical yield? 4.03 g
  3. What is the percent yield? 63.03 %

Question 2:

Write the complete ionic equation AND the net ionic equation of a mixture of the following:

K2C2O4(aq)+Ba(OH)2(aq) (know how to make chemical formulas from the name)

If 12.8g of K2C2O4 is reacted with 125mL of 1.755M Ba(OH)2 , 8.55 g of insoluble product is produced.

  1. What is the limiting reactant? K2C2O4
  2. What is the theoretical yield? 17.4 g
  3. What is the percent yield? 49.1%