The number of carbon atoms in the alcohol, pentanol, is:

Given ƒ : x -> 3x - 1, and g : x -> x², then ƒg(-2) =

The number of particles in a mole of any gas is always:

Iron chloride can be prepared from the reaction of iron and:

Demersals are fish that are found:

The charge on a sodium ion is always:

The number of electrons shared in a single covalent bond is:

In which of the following countries is proportional representation practised?

Which of the following is NOT found dissolved in plasma?

A home computer system is equipped with a memory card reader, floppy disk drive, a DVD drive and an internal hard disk, The LEAST an MOST portable media that can be used with this computer are __________.

A reaction that gives out heat is said to be:

Genetic engineering involves:

All of the following are systems programs EXCEPT __________

A species of mouse has 32 chromosomes in its muscle cells.What will be the numbers of chromosomes in the mouse′s skin cells and sperm cells?

In the Venn diagram above, the shaded portion represents

What is the value of u in the sequence 2 , 7 , 14 , 23 , 34 , u ?

Which of the following does NOT play a role in evolutionary change?

A man and woman plan to start a family. Which of the following is likely to be LEAST important to them?

The specific heat capacity of a particular liquid is 3000 J kg^-1 K^-1. A large beaker containing 2 kg of the liquid has to be warmed from 25 ℃ to 35 ℃. A 100 W heater is used. If all the thermal energy could be transferred to the liquid, how long would it take?

To which category of software does Microsoft Works belong?