Rewrite the following by choosing the correct word from each pair in brackets.
Acids are compounds that contain (hydrogen/sulphur) atoms. Sulphuric acid is one such example. It is a (strong/weak) acid. It can be neutralised by (acids/alkalis) to form salts called (sulphites/sulphates).
Many (metals/non-metals) react with acids to give a gas called (hydrogen/oxygen). Acid also react with (carbonates/hydroxides) to give (hydrogen/carbon dioxide) gas.
Phenolphthalein turns (pink/colourless) in acids, while litmus turns (red/blue).
Acids are compounds that contain hydrogen atoms. Sulphuric acid is one such example. It is a strong acid. It can be neutralised by alkalis to form salts called sulphates.
Many metals react with acids to give a gas called hydrogen. Acid also reacts with carbonates to give carbon dioxide gas.
Phenolphthalein turns colourless in acids, while litmus turns red.
Many metals react with acids to give a gas called hydrogen. Acid also reacts with carbonates to give carbon dioxide gas.
Phenolphthalein turns colourless in acids, while litmus turns red.