guys this my Second time asking
please give answers for all of them
please don't give irrelevant answers
Answers
Answer:
1 Hydrogen
2Ozone layer
3chemical change
4rust
5magnesium oxide
Answer:
1. Carbon dioxide
2. Melanin
3.Chemical change
4.Oxidation Reaction
5.Magnesium oxide
Explanation:
1.Baking soda is sodium bicarbonate (a base) and vinegar is diluted acetic acid. When they react to release the OH and H to become water, they also release carbon dioxide.
2.Form of melanin has ability to protect human tissue from X-rays during medical treatment, spaceflight. Which makes a layer upon our body
to protect us from radiation and preventing us from cancer.
3. When two or more substances combined to form two or more new substances called is chemical change.
4. When iron reacts with oxygen it causes rusting.
5.Oxygen and magnesium come together in a chemical reaction to form this compound.