A current of 2 mA is flowing through a wire. How long will it take for 6 coulombs of charge to pass?

Raising the temperature of a reversible reaction always encourages the:

Reactive metals such as potassium react with water to give hydrogen and:

Instructions: Select the option A, B, C or D that BEST describe the sentence.

Seldom do people declare that they are not the products of their environment.

Most plant and animal cells contain:

The rate of reaction between marble and hydrochloric acid can be speeded up by using:

Genetic engineering involves:

In a school of 910 pupils, ²/₅ are girls and ²/₇ of the girls play netball. How many girls play netball?

Which of the following is LEAST likely to lead to the development of the Human Resources of a country?

A certain nucleus has 12 protons and 16 neutrons.Which one of the following statements about the nucleus is NOT true?

When potassium burns in chlorine, the material that is oxidised is called:

Which of the following nutrients is/are digested in the stomach?

A boy throws a cricket ball straight up in the air. At the very top of its flight:

Transition metals have all of these properties EXCEPT for:

All of these are fractions from crude oil EXCEPT for:

Adding mineral water to anhydrous copper sulphate turns it:

Oxygen is carried around the body by the:

All gas exchange surfaces in vertebrate animals have:

When we focus on a near object, the lens in our eye:

Potassium reacts quickly with water but we do not use it with acids because: