Ask Question
31 May, 15:36

Given the reaction: Ca + 2H2O → Ca (OH) 2 + H2 What is the total number of moles of Ca needed to react completely with 4.0 moles of H2O?

+2
Answers (1)
  1. 31 May, 19:15
    0
    Since the given equation is balanced, we know the Ca and the H2O are in a 1:2 ratio (to see the ratio, look at the coefficients in front of the molecules). Then, there are a few different ways to solve the problem. I am going to show you how to solve it using a ratio of moles of Ca/moles of H2O: x/1=4/2. First, you cross multiply to get 2x=4. Then, you divide both sides by 2 to get x=2 moles of Ca.
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Given the reaction: Ca + 2H2O → Ca (OH) 2 + H2 What is the total number of moles of Ca needed to react completely with 4.0 moles of H2O? ...” in 📙 Chemistry if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers