Question

please tell fast fast​

Answer 1

iam freefire lover you also free fire lover

Answer 2

Answer :

1. Photosynthesis is a chemical change

2. In galvanisation iron objects are coated with a layer of zinc

3. Folding of paper is a physical process

4. Magnesium produces magnesium oxide when burnt in air

5. Both oxygen and water are needed for rusting .

True or false

1. Sodium hydrogen carbonate is the chemical name of baking soda . True

2. Evaporation of water is a chemical change . False

3. Melting of wax and burning of candle both are similar changes . False

4. Corrosion does not harm the iron objects . False

5. Chemical changes are always reversible . False