how many grams of NaCI will produce if you react 13

how many grams of NaCI will produce if you react 13.0 g of sodium with 12.75 g of chlorine: 2Na +CI2 --> 2NaCI?2

1. How much energy is required to produce 1.00 kg of aluminum by the reaction 2 AIO₃(s) + 3 C(s) + 1..97 x 10³ kJ ---> 4 AI(s) + 3 CO₂(g)?
2. how many moles are there in 7.91 grams of calcium hydroxide, Ca(OH)₂ ? Round your answer to the nearest hundredth. ?
3. A certain organic compound has the formula C₁₀H₁₁O₃ . A sample of this compound weighs 5.82 grams. calculate the number of hydrogen atoms contained in this sample. round your final result to the nearest tenth. hint: calculate the number of molecules in the sample, then multiply by the number of hydrogen atoms in the chemical formula.?