SC-85
Elements, compounds and mixtures
Lower Sec Science · Secondary 1 · Medium · Elements, compounds and mixtures
A student compares two unknown substances.
Substance X can be broken down by chemical means into simpler substances. Substance Y cannot be broken down further by chemical means.
What are X and Y?
Substance X can be broken down by chemical means into simpler substances. Substance Y cannot be broken down further by chemical means.
What are X and Y?
- X is a compound, Y is an element
- X is an element, Y is a compound
- Both X and Y are elements
- Both X and Y are compounds
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