Explanation:
The total mass of the product will also be 20g because in chemical reactions, mass is always conserved.
According to the law of conservation of mass "the law states that matter can neither be created nor destroyed but changed from one form to another in a chemical reaction".
- The law simply postulates that mass is conserved in chemical reactions.
- If the mass of reactants is 20g, the mass of the products will likewise be 20g.
- So, the mass is the same in both directions.
Answer : The correct option is, (D) it is oxidized.
Explanation :
On the basis of electrons, there are two types of reactions :
(1) Oxidation reaction (2) Reduction reaction
Oxidation reaction : When an element loses electrons in a chemical reaction then that element gets oxidized in the chemical reaction and its oxidation number increases.
Reduction reaction : When an element gains electrons in a chemical reaction then that element gets reduced in the chemical reaction and its oxidation number decreases.
Hence, the correct answer is (D).
Answer:
NaOH
Explanation:
Sodium hydroxide is a base because it dissociate into hydroxl ion when dissolved in water .
