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Descrição
FlashCards por liamtsheppard, atualizado more than 1 year ago
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Criado por liamtsheppard
aproximadamente 8 anos atrás
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| Questão | Responda |
| What is an element? | An element is a substance which cannot be broken down into simpler substances by chemical reactions |
| What is a compound? | A compound is a pure substance consisting of two or more elements that have been chemically combined |
| How can compounds be formed? | Compounds can be formed by chemically combining: elements, elements & compounds and compounds |
| What is a molecule? | A molecule is made up of 2 or more atoms of the same kind or different kinds, chemically combined together. |
| How many types of molecules are there and what are there names? | There are 2 types of molecules and there names are molecules of elements and molecules of compounds. |
| Define molecules of elements | These consist of a fixed number of one kind of atom only |
| Define molecules of compounds | These consist of a fixed number of 2 or more different kinds of atoms chemically combined together. |
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