Question

Fill in the blanks.
1._________are the substances that combine or react in a reaction.
2. Calcium carbonate gives______and________on heating
3. Reactants that take place in the presence of light are called
4. Combination ____reactions are also called
reactions.
5. When iron is heated with sulphur,_________is formed​

Answer 1

Answer:

1.product are the substances that combine or react in a reaction.

Answer 2

Answer:

2 . calcium oxide and carbon dioxide

3.light reaction as well as photosynthesis.

5.iron sulfide

1 and 4 I don't know

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