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chemistry-Juustice
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Question | Answer |
---|---|
what is the group that the noble gas is in? | the noble gas is in group 8 |
what is a physical change? | physical change is when you make an object look different ex. breaking something |
ductility is when...? | ductility is when you can hammer metal sheets into wire |
what group is alkali in? | alkali is in group 1 |
what group is alkaline in? | alkaline is in group 2 |
what is homogeneous? | it is when 2 mixtures dissolve |
what is heterogeneous? | is when 2 mixtures don't dissolve |
diatomic elements are...? | elements that exist in pairs |
what is chemical change? | is when you mix 2 chemicals and they look different ex. colour change |
what is compound? | when 2 elements are combined |