A flame test colour of red could indicate the presence of a compound of:

Profits in the partnership of Bess, Bill and Bob are shared in the ratio 1 : 2 : 3. If Bill's share of the profits is $300, what is Bob's share?

Choose the ONE underlined part A, B or C that is inappropriate. If the sentence is acceptable as it stands, choose D.

June prefers to lie in bed not wanting to go to school nor does any work.

All of these are alkenes EXCEPT for:

A shopkeeper buys 48 radios for a wholesale price of $7200. At what price per radio must he sell to make a profit of 15% on his cost?

A reaction that gives out heat is said to be:

Which one of the following comparisons of inhaled and exhaled air is correct?

The energy used in thermal decomposition is:

The width of a block of wood with rectangular cross-section is x cm. Its height is ²/₃ its width and its length is 4 times its height. What is its volume in cm³?

Which of the following may contribute to group cohesion in the Caribbean?

1. Clear goals
2. Special privileges
3. Similar interests
4. Shared values

__________ is a temporary holding area for data, application program instructions, and the operating system.

Which one of the following is a biological component of a pond ecosystem?

The halogens are found in:

Which of the following statements about aerobic respiration is correct?

The value of 5 in the number 357.21 is

$x is divided among three boys, Ryan, Keith and Andrew, in the ratio 2 : 3 : 7, respectively. If Andrew gets $15 more than Keith, what is the value of x ?

Plant stems grow towards a light source.This is an example of:

Dividing the mass in grams by the mass of 1 mole in grams gives:

A rectangular tank is 100 cm long, 30 cm wide and 12 cm deep. The volume of liquid it will hold is

Three lights flash at intervals of 4, 6 and 10 seconds respectively. They are started together. How soon after will they next flash together again?