Chemistry

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What is exothermic?
It is when heat is given out.
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What is endothermic?
It is when heat is taken in
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What is the equation for percentage yield?
Actual yield(grams) / predicted yield(gram) X 100
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How many covalent bonds does a diamond have?
It has four covalent bonds
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How many covalent bonds does a graphite have?
It has three covalent bonds
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Why does graphite conduct electricity?
Because it has free flowing electrons as there is only three covalent bonds
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Why is a diamond good cutting tool?
Because of its structure, it is very hard
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Do giant molecular structures have low or high melting points?
High melting points
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What is the equation for atom economy?
Total mass of desired products / total mass of all products X 100
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Does mor collisions increase or decrease the rate of reaction
It increases the rate of reaction
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Other cards in this set

Card 2

Front

What is endothermic?

Back

It is when heat is taken in

Card 3

Front

What is the equation for percentage yield?

Back

Preview of the front of card 3

Card 4

Front

How many covalent bonds does a diamond have?

Back

Preview of the front of card 4

Card 5

Front

How many covalent bonds does a graphite have?

Back

Preview of the front of card 5
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