Question

1. When zinc reacts with dilute hydrochloric acid, zinc chloride and
hydrogen gas are formed.
a. Write a balanced equation for the reaction.
b. What mass of hydrogen is formed when 16.2g of zinc reacts
completely with the dilute acid?
2. a. What volume of oxygen needed for the complete combustion of
20g of hydrogen? (N.B 1 mole = 22.4dm3

(volume))

b. What mass of water is produced from the reaction (2a) above?
3. If 2.17g of sodium oxide are thermally decomposed to sodium and
oxygen.
a. What mass of sodium will be produced?
b. How many oxygen molecules will be produced?
4. Hydrogen reacts with oxygen to form water.
a. write a balance equation for the reaction.
b. how many grams of oxygen is required to produce 45g of water.
c. determine the volume of hydrogen used in the reaction. (Volume
= 22.4dm3

Answer 1

Answer:

Sorry Buddy I don't know what is the answer.

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