Adding mineral water to anhydrous copper sulphate turns it:

For which of the following purposes is the information collected in a census normally used?

1. To determine the rate of population growth
2. To predict the needs of the society and plan how to satisfy them
3. To estimate the number of government supporters in the country

When black copper oxide is heated with carbon, brown copper metal is produced, which means that compared to copper, carbon is the:

The empirical formula, C₆H₁₂O₆, gives the simplest ratio as:

The charge on a sodium ion is always:

When solid carbon dioxide turns straight into a gas we call it:

The highest authority of the Caribbean Community (CARICOM) is the

More collisions between particles are likely to happen if a solution is made:

0.045 × 10^-3 in scientific notation is

When aluminium is extracted by electrolysis, cryolite is added to:

__________ is a type of chip from which data can be erased by exposure to ultraviolet light.

A store charges 6% VAT on all sales. What is the total cost of a shirt marked at $30 ?

All of the following are non-metals EXCEPT for:

The proportions of elements in a pure compound are always:

After a 5% discount, an article is sold for $475. The price before the discount was

In the modern Periodic Table the elements are arranged:

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

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

The problem with the students is that they arrive late, gives no excuse, and are rude when spoken to.

A man bought a shirt at a sale. He saves $30 on the normal price when he paid $120 for the shirt. What was the percentage discount on the shirt?

When rotated through 90° about the origin in a clockwise direction, the image of the point (3, 1) is