Chemistry 🧪 Flashcards

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1
Q

Which of the following is not a chemical change?
1. Colour change
2. Energy change
3. Temperature change
4. Gas formation (fizzing/ bubbles)

A
  1. Temperature change
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2
Q

Sodium + Chlorine —>

A

Sodium Chloride

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3
Q

Iron + Oxygen —>

A

Iron oxide

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4
Q

—> or = for showing equations

A

—>

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5
Q

What’s a compound?

A

A compound is a substance of two or more elements that can’t be separated

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6
Q

What’s a mixture?

A

A mixture is a mix of two or more elements that can be separated

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7
Q

What’s an element?

A

An element is a substance made of one type of atom

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8
Q

What’s an alloy?

A

An alloy is a mix of two or more elements, one of which is always a metal

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9
Q

Can you separate a compound?

A

No

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10
Q

Can you separate a mixture?

A

Yes

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11
Q

Can you separate an element?

A

There’s nothing to separate

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12
Q

Can you separate an alloy?

A

No

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