States of Matter and Heating Curves

At which letter is the substance changing its state of matter?

• A only

• A, C, and E

• D and E

• B and D

Tags

NGSS.MS-PS1-4

What line segment represents only the solid state?

• A-B

• B-C

• C-D

• D-E

Tags

NGSS.MS-PS1-4

In which region(s) of the graph does boiling take place?

• Region 2

• Region 3

• Region 4

• Region 5

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Given the heating curve of a solid being heated at a constant rate, what is the boiling point of this substance?

• 20°C

• 50°C

• 110°C

• 170°C

Tags

NGSS.MS-PS1-4

In what part of the curve would substance X have definite volume but no definite shape?

• I

• II

• III

• IV

• V

Tags

NGSS.MS-PS1-4

Anika, Samuel, and Henry were conducting an experiment in their chemistry class. They recorded the heating curve of a substance as shown in the graph. Based on their observations, what is the boiling point of the substance?

• 100 C

• 60 C

• 80 C

• 20 C

Tags

NGSS.MS-PS1-4

Label the following heat curve

d

e

f

g

a

b

c

Heat of fusion

Melting

Solid

Heat of vaporizaiton

Gas

Boiling

Liquid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

NaCl(s) was heated up starting at an initial temperature of 0°C. The heating curve is shown in the picture. What is the melting point of this substance?

• 0°C

• 801°C

• 1000°C

• 1465°C

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Given the heating curve of a solid being heated at a constant rate, how much total time was required to boil this substance after it reached its melting point?

• 3 minutes

• 4 minutes

• 10 minutes

• 14 minutes

Tags

NGSS.MS-PS1-4

Describe the substance at letter A.

• Solid

• Liquid

• Melting

• Evaporating

Tags

NGSS.MS-PS1-4