there is no oxygen in space for humans to breathe. so, astronauts living in space use electricity to break…

there is no oxygen in space for humans to breathe. so, astronauts living in space use electricity to break down water into hydrogen gas and oxygen gas. consider the following reaction: some amount of water (h₂o) reacts to produce 2 molecules of hydrogen (h₂) and 1 molecule of oxygen (o₂). use the number of atoms in the reaction to answer the question below. chemical element number of atoms in the reaction h 4 o 2 during this reaction, how many molecules of water (h₂o) react?

there is no oxygen in space for humans to breathe. so, astronauts living in space use electricity to break down water into hydrogen gas and oxygen gas. consider the following reaction: some amount of water (h₂o) reacts to produce 2 molecules of hydrogen (h₂) and 1 molecule of oxygen (o₂). use the number of atoms in the reaction to answer the question below. chemical element number of atoms in the reaction h 4 o 2 during this reaction, how many molecules of water (h₂o) react?

Answer

Answer:

2

Explanation:

Step1: Analyze water molecule composition

A water molecule ($H_2O$) has 2 hydrogen ($H$) atoms and 1 oxygen ($O$) atom.

Step2: Count hydrogen atoms

There are 4 hydrogen atoms in the reaction products. Since each water molecule has 2 hydrogen atoms, the number of water - molecules for hydrogen atoms is $\frac{4}{2}=2$.

Step3: Count oxygen atoms

There are 2 oxygen atoms in the reaction products. Since each water molecule has 1 oxygen atom, the number of water - molecules for oxygen atoms is $\frac{2}{1}=2$. So, 2 molecules of water react.