What colour does litmus paper turn when added to an alkali?

What colour does litmus paper turn when added to an acid?

What other laboratory substance can you use to test if colourless substance is an acid or an alkali?

What happens to the pH of an acid during neutralisation?

A wasp sting is alkali. Which substance would neutralise the sting?

If you wanted to test a colourless and odourless substance at home, what household item could you use?

Which substance is an acid?

Which pH levels indicated a strong acid?

Which pH level indicates a weak alkali?

Which pH level indicates a weak acid?

Which pH level indicates a strong alkali?

Acids taste...

Alkalis feel...

Strong acids and alkalis are...

What pH range would you get for an acid?

What is the concentration in g dm^-3 for 40g of solid copper(II) sulphate is dissolved in water to produce 20 dm³ solution.

What is the concentration in g dm^-3 for 18 g of solid copper(II) sulphate is dissolved in water to produce 750 cm³ solution.

75 cm³ of 2.0 mol dm^-3 nitric acid, that is diluted to x mol dm^-3 when 25 cm³ distilled water is added. Calculate the value of x.

x cm³ of 2.0 mol dm^-3 hydrochloric acid, that is diluted to 0.2 mol dm^-3 to produce 250 cm³ of hydrochloric acid. Calculate the value of x.

20 cm³ of 0.25 mol dm^-3 sodium hydroxide solution, NaOH is neautralised with 0.2 mol dm^-3 hydrochloric acid, HCl. What is the volume of HCl needed.