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Chemistry C3 > Chemistry C3 > Flashcards

Chemistry C3 Flashcards

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0
Q

What kind of process is bond making?

A

Exothermic

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1
Q

Give two examples of chemicals made my continous process

A
  • Ammonia for fertilizers

- sulfuric acid

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2
Q

Give 3 ways of making a reaction faster

A

Increase the

  • temperature
  • pressure
  • concentration
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3
Q

The rate of reaction shows what?

A

How fast or slow a reaction is

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4
Q

What kind of process if bond breaking

A

Endothermic

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5
Q

What is the word equation for photosynthesis

A

Carbon dioxide + water > glucose and oxygen

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6
Q

What is combustion

A

The scientific word for burning

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7
Q

What is a catalyst?

A

A substance added to a chemical reaction to make it go faster

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8
Q

Give and example of a slow reaction

A

Rusting

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9
Q

Give an example of a fast reaction

A

Burning / explosions

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10
Q

If something is needed in small amounts, which process would be used to make them

A

Batch process

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11
Q

If something is needed in large amounts, which process is needed to make it

A

Continous process

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12
Q

What are allotropes

A

Different structures of the same element

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13
Q

Give two examples of allotropes

A

Graphite and diamond

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14
Q

What does the rate of reaction measure

A

How much product is made

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15
Q

Exothermic reactions happen at ….

A

Higher temperatures

16
Q

Give an example of what kind of things are made in batch process

A

Pharmaceuticals ( medical drugs )

17
Q

Endothermic reactions happen at

A

Lower temperatures

18
Q

Name 3 properties of nanotubes amd what they are used for

A
  • Reinforce graphite in tennis rackets
  • used as industrial catalysts
  • semi conductors in electrical circuits
19
Q

Does a catalyst effect how much product is made?

A

No it just makes it faster

20
Q

How do you work out percentage yield?

A

Actual yield
—————– X 100
Predicted yield

21
Q

What are reactants turned into a chemical reaction called?

A

Products

22
Q

What happens in endothermic reactions?

A

Energy is absorbed

23
Q

What happens in exothermic reactions

A

Energy is released

24
Q

When does a chemical reaction take place

A

When reactant particles collide with eachother

25
Q

How do you work out atom economy?

A

relative formula mass of the desired products / relative formula mass of all of the products X 100

Chemistry C3 (1 decks)

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