Question

- Q 1 State main points of Dalton atomic theory.
Q2 State the law of constant proportion.
Q3 state the law of conservation of mass
Q 4 If 90g of pure water is obtained through 80g of oxygen and
Xg of hydrogen. a. Find the value of X. b. Which chemical law is
illustrated by this statement?
Q 5 Calculate the molecular mass of the following: a. H20 b. HCI
c. H2S
Q 6 If 6g of hydrogen combine with 48g of oxygen, how many
grams of water is obtained?
Q 7 If carbon and oxygen combine in a definite ratio of 3:8 to
form carbon dioxide. What mass of oxygen gas is required in
carbon dioxide with 10 g of carbon?
Q8 Give symbol of the followinga. oxygen b. hydrogen c. carbon
Q 9 If atomic mass of carbon is 1u then what is the atomic mass​

Answer 1

Answer:

Q4. 20g

Q5. a. 18 b.18 c.18

Q6. 54

Q7. Mass of oxygen is 80/3

Q8. a. O b. H c.C