Question

Match the following items.

1. used in engines and rockets
calcium
2. a type of slow combustion
respiration
3. a chemical change
photosynthesis
4. electron loss when combining with another element
rapid combustion
5. element in bone which absorbs X-rays
oxidation
6. reaction in which the product is glucose
souring

Answer 1

Answer:

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Answer 2

Answer:

1. rapid combustion

2. souring

3. respiration

4. oxidation

5. calcium

6. photosynthesis

Explanation:

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