Curve

Using the supplied solubility curve diagram, determine what type of solution would be present if 50 grams of NH₃ was dissolved in 100 grams of water at 30°C.

• saturated

• unsaturated

• supersaturated

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Using the supplied solubility curve, determine the type of solution that is formed if 80 grams of NaNO₃ were dissolved in 100 grams of water at 30°C.

• saturated

• unsaturated

• supersaturated

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Using the supplied solubility curve, determine the type of solution formed when 60 grams of NH₄Cl are dissolved in 100 grams of water at 80°C.

• saturated

• unsaturated

• supersaturated

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

The the supplied solubility curve shows that when 79 grams of NaNO₃ is dissolved in 100 grams of water at 10°C, that a saturated solution will be formed.

• True

• False

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NaCl was heated 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

NGSS.MS-PS3-4

In which region(s) does temperature increase?

• Region C only

• Regions B and D

• Regions A, C, and E

• Regions A and B

Tags

NGSS.MS-PS1-4

In a heating curve, diagonal lines indicate temperature is __________, while flat lines indicate temperature is __________.

• Constant, changing

• Changing, constant

Tags

NGSS.MS-PS1-4

The melting point of the sample is

• -60 ºC

• 20 ºC

• 60 ºC

• 100 ºC

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

In which region(s) of the heating curve would water be a liquid and a gas at the same time?

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is happening to the particles in the substance between points D and E?

• Melting

• Freezing

• Vaporizing

• Sublimating

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4