Question

Which of the following can be used interchangeably with the term state of matter?

Answer 1

chemical change

phase

element

substance

Answer 2

phase

Answer 3

thanks :D

Answer 4

no prob !

Answer 5

Do you know this?

On a phase diagram, what does the triple point represent?

a)The triple point represents the temperature and pressure at which only two phases of a substance are present.

b.)The triple point represents the temperature and pressure at which all three phases of a substance are present.

c)The triple point represents the temperature at which a substance will always be a solid regardless of the pressure.

d.)The triple point represents the temperature at which a substance will always be a gas regardless of the pressure.

Answer 6

look at the axes of the graph, what are they?

Answer 7

its okay i figured it out. :)

Answer 8

okaycool

Answer 9

sorry to bother but do you know this?


When a liquid changes into a gas, what happens to the energy in the surrounding environment?

a)It increases.

b)It stays the same.

c)It decreases.

d)Phase changes have nothing to do with energy.

Answer 10

to turn a liquid into a gas the surroundings have to input energy into the system (substance), can you interpret this?

Answer 11

so...it would be c?

Answer 12

yep

Answer 13

thanks again

Answer 14

no worries !