Understanding chemistry helps you to understand the world around you. Everything you can touch, taste or smell is a chemical. When you study chemistry, you come to understand a bit about how things work. Chemistry isn't secret knowledge, useless to anyone but not to scientist. It's the explanation for everything, like why laundry detergent works better in hot water, how baking soda works or why not all pain reliever work equally on a headache. If you know some chemistry, you can make educated choices about everyday products that you use.
- The existence of life is based on chemical reaction
- All living cells get energy based on chemical reaction
- All movements and activities are chemical reaction
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