This quiz is in TEST MODE and as such is not 100% functional.
All answers should use 3 significant figures, regardless of how many are given in the problem.
For very small or large numbers, use scientific notation written as follows: 1.23e+23.


Given the following reaction:

1 CaC2 + 2 H2O ---> 1 Ca(OH)2 + 1 C2H2

How many grams of H2O are required to produce 2.16 grams of Ca(OH)2 ?