Explain each percent below as fraction.of something. i) `6 (1)/(4) %`
Ii) `6 (2)/(3) %`
iii) `8 (1)/(3) %`.
iv) `16 (2)/(3) %`
v) `62 (1)/(2) %`
vi) `66 (2)/(3) %`
vii) `83 (1)/(3) %`

1) Express the percent each fraction below indicates. i) (3)/(8) ii) (7)/(20) iii) (2)/(3) (iv) (28)/(25) v) 2 (1)/(3)

Calculate the following . Write them as products. i) (1)/(4) of (1)/(2) ii) (1)/(2) of (1)/(4) iii) (1)/(5) of (1)/(3) iv) (1)/(3) of (1)/(5) v) (1)/(6) . of (1)/(3) vi) (1)/(3) of (1)/(6)

Calculate the percentage composition of calcium nitrate (Ca(NO_3)_2) .

Calculate the mass percentage of oxygen in CaCO_3 .

What is the percentage of (3)/(4) of (2)/(3) of a number with respect to the original number?

Calculate the mass % of oxygen in Fe_(3)O_(4)

Which of the following relations are functions? Give reasons. If it is a function, determine its domain and range. i) {(2,1),(5,1),(8,1),(11,1),(14,1),(17,1)} ii) { (2,1,(4,2),(6,3),(8,4),(10,5),(12,6),(14,7)} iii) {(0,0),(1,1),(1,-1),(4,2),(4,-2),(9,3)(9,-3),(16,-4), (16,-4)} iv) {(1, 2),(1,3),(2,5)} v) {(2,1),(3,1),(5,2)} vi) { (1,2),(2,2),(3,2)}

What is percentage of s-character in (i) 'sp^3' (ii) 'sp^2' (iii) sp-hybridized orbitals?