Answer: Option (1) is the correct answer.
Explanation:
Compounds are the substances which contain two or more different elements.
Similarly, water is a compound as it is made up when two hydrogen atoms combine with one oxygen atom. Compounds can be broken down with the help of chemical reactions.
Hence, the statement water can be broken down by chemical means explains why water is classified as a compound.
Answer:
Scientists debated the theories with each other and compared the theories with scientific observations
When MgO and H2O react they form Magnesium Hydroxide Mg(OH)2
An instrument with high amplitude has loud sound. An instrument with low amplitude has soft sound.
