Question

B. VERY SHORT-ANSWER QUESTIONS: Give one-word answers.
1. In which changes do substances undergo chemical transformation-physical or chemical?
2. Rust is a mixture and does not have a chemical formula. True or false?
3. The process of depositing zinc on iron to prevent rusting is called
4. Which gas is given off when calcium carbonate is heated?
5. When two soluble substances in solution react to give an insoluble substance, a
is formed.
6. Heat is absorbed in an
reaction.
7. If an equation has + heat' written on its right-hand side, what type of reaction is it?​

Answer 1

Answer:

1)chemical

2)false

3)galvanisation

4)carbon dioxide

5)insoluble salt

6)endothermic reaction

7)heat which is evolved means exothermic reaction it is

dont think that i am in iit or else i am just in class 11th but i love to study thats y i know it.

Explanation: