Question

hi friends ♥ answer
11,12,13,14,15,16,
questions I need fast so pls​

Answer 1

11. from above information we can say that heat is absorbed through endothermic reactions .

12. Ferrous trioxide is reduced to ferrous. co is oxidised to co

13. balanced chemical equation is that in which no of atoms is same in reactant side and in product.

 equation should be balanced to satisfy the law of conservation of mass

14.  Respiration is a chemical change.

16 . first reaction is....

zn + hcl --> zncl2 + h2

but whar is the formula of sodium hydrochloric acid....

the common aspect is that hydrogen is released on both.

Answer 2

Answer:

11. This is endothermic reaction.

12.C

Fe

Fe and C

Explanation: