which of the following is the balanced equation for the reaction between hydrogen gas (h2) and oxygen gas…
which of the following is the balanced equation for the reaction between hydrogen gas (h2) and oxygen gas (o2) to produce water (h2o)? a) h2 + o2 -> h2o b) 2h2 + o2 -> 2h2o c) h2 + 2o2 -> 2h2o d) 2h2 + 2o2 -> 2h2o
Answer
Explanation:
Step1: Check hydrogen atoms
In option a, there are 2 hydrogen atoms on the left - hand side and 2 on the right - hand side. In option b, there are 4 hydrogen atoms on the left - hand side ($2\times2$) and 4 on the right - hand side ($2\times2$). In option c, there are 2 hydrogen atoms on the left - hand side and 4 on the right - hand side. In option d, there are 4 hydrogen atoms on the left - hand side and 4 on the right - hand side.
Step2: Check oxygen atoms
In option a, there are 2 oxygen atoms on the left - hand side and 1 on the right - hand side. In option b, there are 2 oxygen atoms on the left - hand side and 2 on the right - hand side. In option c, there are 4 oxygen atoms on the left - hand side and 2 on the right - hand side. In option d, there are 4 oxygen atoms on the left - hand side and 2 on the right - hand side.
Answer:
B. 2H2 + O2 -> 2H2O