Chemistry 🧪 Flashcards
Which of the following is not a chemical change?
1. Colour change
2. Energy change
3. Temperature change
4. Gas formation (fizzing/ bubbles)
- Temperature change
Sodium + Chlorine —>
Sodium Chloride
Iron + Oxygen —>
Iron oxide
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What’s a compound?
A compound is a substance of two or more elements that can’t be separated
What’s a mixture?
A mixture is a mix of two or more elements that can be separated
What’s an element?
An element is a substance made of one type of atom
What’s an alloy?
An alloy is a mix of two or more elements, one of which is always a metal
Can you separate a compound?
No
Can you separate a mixture?
Yes
Can you separate an element?
There’s nothing to separate
Can you separate an alloy?
No