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CRTA_MYP5

Last updated almost 6 years ago

6 questions

1

1

1

1

3

Question 5

5.

In the equation q=mc∆T, state what ‘c’ stands for, including the units.

4

Question 1

1.

What is the mass of 1 mol of Carbon dioxide? C = 12 gmol-1 and O = 16 gmol-1

22

28

44

60

Question 2

2.

How many moles are there in 18 g of water. H = 1 gmol-1 and O = 16 gmol-1

1.5

2

1

3

Question 3

3.

What is always true of the enthalpy change for an endothermic reaction?

It is negative

Energy is released

It is positive

It is zero

Question 4

4.

Which of the following is a true statement about bond breaking?

It is exothermic

It is endothermic

It will never happen

Releases energy

Question 6

6.

Outline the difference between endothermic and exothermic reactions.