Top answers

What happens when CaCO3?

1) Thermal Decomposition 2) Forms: CaO + CO 2
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Answered by Hans S. • Chemistry tutor
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Why are metals good conductors?

Metals have delocalised electrons which are free to move and carry charge throughout the sea of cations.
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Answered by Emma H. • Chemistry tutor
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What are ionic bonds?

Ionic bonds are electrostatic forces of attraction between oppositely charged ions.
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Answered by Emma H. • Chemistry tutor
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Write a balanced chemical symbol equation for a reaction between Potassium and Water, including state symbols?

2K(s) + 2H 2 O(l) = 2KOH(aq) + H 2 (g) Potassium (K) is a group 1 metal, which is a solid. Water (H 2 O) reacts with Potassium to form Potassium Hydroxide (KOH) and Hydrogen (H 2 ). Hydrogen exists naturally...
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Answered by Joe D. • Chemistry tutor
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How can I check if my reaction equations are correct?

The basic principle about chemical reactions is that whatever goes in one end, will undoubtedly come out the other! The simplest way to make sure your reactions are correct is to count what you have on each ...
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Answered by Alexia K. • Chemistry tutor
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