Zn + 2 hcl zncl2 + h2 you are asked the following question: in the chemical reaction above, if you start with 100 grams of zinc, how many moles of hydrogen will be produced? what is the logical first step to solving this problem?

given: 100 grams of zinc.the logical first step would be to convert 100 grams of zinc into moles.the molar mass of zinc is  65.38 g/mol.using dimensional analysis:     from the balanced chemical equation, we see that there is 1 mole of  for every mole of  .since this is a 1: 1 ratio, there will be about 1.53 moles of hydrogen produced.

Combustion is the act or process of burning. therefore, i believe the answer is  a: burning wood.