3952343
Descrição
FlashCards por katie Dack, atualizado more than 1 year ago
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Criado por katie Dack
aproximadamente 9 anos atrás
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| Questão | Responda |
| state four properties / characteristics of metals. | strong, solid at room temperature, conductive, shiny |
| what are the differences between groups and periods on the periodic table? | groups are columns and periods are in rows |
| what is a element? | a substance made of one type of atom |
| what is a compound? | substances made of two or more elements which are chemically bonded together. |
| name a compound? | |
| Name two mixtures? | seawater and air |
| what is a mixture? | a substance made of two or more elements or compounds that are not chemically bonded together. |
| what is a atom | a basic particle of matter. |
| what is a molecule? | two or more at atoms which are chemically bonded together |
| name two molecules? | oxygen and carbon dioxide. |
| finish this equation zinc + sulphuric acids = ? + ? | zinc + sulphuric = zinc sulfate + hydrogen acid |
| finish this equation: Ca + ? = CaCl2 + ? | Ca + 2HCl = CaCl + H2 |
| finish this equation: iron + oxygen = ? | iron + oxygen + iron oxide |
| finish this equation 2Cu + O2 = ? | 2Cu + O2 = 2CuO |
| Finish this equation potassium + water = ? +? | potassium + water = potassium hydroxide + hydrogen |
| finish this equation | |
| finish this equation |
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