Cooking food improves all of these EXCEPT for:

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

If an increase of 20% will change the price of an item to $480, what is the original price of the item?

The triangle ABC above shows the angle of elevation of the top, B, of a tower, BC, from A, to be 30°. AB = 40 m. The length of BC is

A salt that is anhydrous contains no:

If closing stock Were overstated by $1,000 at the end of a trading period, the error would result in an

Oxidation can include all of these EXCEPT for:

The shaded area in the Venn diagram above represents

Simple sugars are called monosaccharides because:

The gas that relights a glowing splint is:

The splitting of a beam of white light into the colours which make it up is called:

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

Alcohol can be separated from beer using:

The following statements describe the molecules in a gas at around room temperature. Which one is NOT true?

When an acid neutralises an alkali the pH is likely to be:

In terms of mass, compared to a proton, an electron:

The diagram above shows the graphs of 3x - y = 1 and 5x + 2y = 20 . Which ordered pair (x, y) satisfies both equations?

If a reaction takes 50 seconds at 25 ℃, then at 50 ℃ the time for the reaction in seconds is likely to be about:

To make cell walls, plants must have:

The pH scale runs from 1 to: