How many atoms are present in total in two water molecules?
Answer and explanation
Correct answer: 6
The chemical formula of water is \(H_2O\). One water molecule has 2 hydrogen atoms and 1 oxygen atom, so it contains 3 atoms in total. Therefore, two water molecules contain \(2 \times (2+1)=6\) atoms. Option 5 is incorrect because it does not represent the total number of hydrogen and oxygen atoms in two complete water molecules.
Frequently asked questions
What is the correct answer to this question?
6
Why is this the correct answer?
The chemical formula of water is \(H_2O\). One water molecule has 2 hydrogen atoms and 1 oxygen atom, so it contains 3 atoms in total. Therefore, two water molecules contain \(2 \times (2+1)=6\) atoms. Option 5 is incorrect because it does not represent the total number of hydrogen and oxygen atoms in two complete water molecules.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
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