4264574
Descrição
FlashCards por Niamh Taylor, atualizado more than 1 year ago
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Criado por Niamh Taylor
quase 9 anos atrás
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| Questão | Responda |
| What does a non-metal oxide form when dissolved in water? | An acidic solution |
| What oxides contribute to environmental problems such as acid rain? | Nitrogen Carbon Sulphur |
| What do metal oxides and hydroxides form when dissolved in water? | An Alkaline solution |
| Give an example of the role of acids in the food and drink industry and in human health. | vinegar |
| Neutralisation is the reaction of acids with neutralisers to form .... | water and salt |
| Neutralisers are..... | metal oxides metal carbonates metal hydroxides |
| What is an alkali? | A soluble base which a greater number of hydroxide ions than hydrogen ions. |
| When an acid reacts with a metal carbonate it gives of what? | carbon dioxide |
| What does neutralisation do? | Moves the pH towards 7 |
| A neutraliser is always described as what? | A chemical which will neutralise an acid. |
| What are the four major reactions of acids? | acid + metal hydroxide → salt + water acid + metal oxide → salt + water acid + metal carbonate → salt + water + hydrogen acid + metal → salt + hydrogen |
| A solution with a higher concentration of hydrogen ions than hydroxide ions is an ... | acid |
| A solution with a higher concentration of hydroxide ions than hydrogen ions is an ... | alkali |
| When water is added to a soluble metal oxide what happens? | A metal hydroxide solution is formed increasing the hydroxide ion concentration |
| When water is added to a soluble non-metal oxide what happens? | An acidic solution is formed increasing the hydrogen ion concentration |
| What is the formula for hydrochloric acid? | HCl |
| What is the formula for sulphuric acid? | H2SO4 |
| What is the formula for nitric acid? | HNO3 |
| What is the formula for carbonic acid? | H2CO3 |
| What is the formula for phosphoric acid? | H3PO4 |
| What is the formula for ethanoic acid? | CH3COOH |
| What is the formula for sodium hydroxide? | NaOH |
| What is the formula for calcium hydroxide? | Ca(OH)2 |
| What is the formula for sodium carbonate? | Na2CO3 |
| What is the formula for sodium hydrogen carbonate? | NaHCO3 |
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