Chemistry
Complete the following blanks in the equation as indicated.
CaH2 (s) + 2H2O (aq) ⟶ Ca(OH)2 (s) + 2H2 (g)
(a) Moles: 1 mole + …………… ⟶ …………… + ……………
(b) Grams: 42g + …………… ⟶ …………… + ……………
(c) Molecules: 6.02 x 1023 + …………… ⟶ …………… + ……………
Related Questions
Assertion (A): Sulphur is an octatomic molecule.
Reason (R): The number of atoms in a molecule of an element is known as atomicity.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Assertion (A): One mole of a gas occupies 24.4 litres at S.T.P.
Reason (R): The mass of one mole of a gas is equal to its molecular mass.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
The gases hydrogen, oxygen, carbon dioxide, sulphur dioxide and chlorine are arranged in order of their increasing relative molecular masses. Given 8 g of each gas at S.T.P., which gas will contain the least number of molecules and which gas the most?