Question

FILL IN THE BLANKS :

1. In a ......... reaction, a compound breaks down into two or more simpler substances.

2. The substance which accelerate the reaction is known as ...........

3. When vinegar is poured on baking soda then bubbles of ........ gas from quickly.

4. Endothermic reactions are characterised by .............. of energy.

5. Carbon dioxide turns ............. blue litmus red.

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Answer 1

Answer:

1. metabolic

2. catalysts

3. CO2

4. absorption.

5. acid

Explanation:

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Answer 2

Answer:

${\pmb{\small{\purple{\boxed{\blue{\red{\pink{\boxed {\underline{\bf{\red{Answer}}}}}}}}}}}}$

1. metabolic

2. catalysts

3. CO2

4. absorption.

5. acid