Which elements make up the the following compounds? 1. Salt

2. Baking Soda

3. Water

4. Hydrogen Peroxide

The element of salt is sodium. The elements of baking soda also called sodium bicarbonate are carbon,sodium,hydrogen and oxygen. The element of water is hydrogen and oxygen. The elements of hydrogen peroxide are hydrogen and oxygen same as water. Hope this helped!!

Explanation:

I am an A+ student in chemistry. So i know its right ;)

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