Question

C. Fill in the blanks.
1. _____flame is used for cutting and welding.
2.Potassium reacts with ______water to release hydrogen.
3.In the reaction between cupric oxide and hydrogen, cupric oxide is the_______.
4. Oxidation is a process of adding_____ or removing______ from a substance.
5. Hydrogen is used for extraction of metals because it is a ______.
6. Hydrogen is _____ to litmus.
7._______is used in rockets as a fuel.
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Answer 1

Explanation:

1. The neutral flame
2. cold water
3. sorry I don't know the answer
4. Oxidation is a chemical reaction involving -addition of oxygen to a substance or removal of hydrogen from a substance.
5. reducing agent.
6. hydrogen has no effect on litmus paper because it is neutral in nature.
7. Liquid hydrogen is used as a fuel for rocket propulsion

pl make me brainlist pl pl pl

Answer 2

1. Neutral Flame

2. Potassium hydroxide and dihydrogen gas is produced when potassium reacted with water.

3.Displacement Reaction

4.oxygen, hydrogen

5.

6.

7.White petrol