Biology, Chapter 2, Chemistry of Life, Post Assessment, Retake

What is the most common solvent in everyday life?

• Ethanol
• Tuluene
• Water
• Oils

Tags

NGSS.HS-ESS2-5

What is the definition of a solute?

•  A mixture of two solutions.
• What gets dissolved into a solvent.
• The solution after dissolving.

In a solution (which is a mixture of a solute and a solvent) which do you typically have more of?

• The solvent
• The solute

What is solubility?

• The ability of a given substance(solute) to dissolve into a solvent.
• The amount of solute that can be dissolved in a solvent.
• The ratio of solvent to solute.

Tags

NGSS.HS-ESS2-5

NGSS.HS-PS1-5

How does temperature affect solubility?

• Solubility is not affected by temperature.
• Solubility decreases with an increase in temperature.
• Solubility increases with an increase in temperature.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When two liquids are mixed together, a solid forms and settles on the bottom of the container.  What can be concluded?

• each liquid was a different color
• a chemical change has taken place
• the temperature of the liquids decreased
• the solubility of the liquids has decreased

Tags

NGSS.MS-PS1-2

Liquids placed in a beaker will settle in specific layers.  Which physical property of matter does this illustrate?

• density
• polarity
• solubility
• malleability

What is the freezing point of ice?

• 0° Celcius
• 50° Celcius
• 75° Celcius
• 100° Celcius

Tags

NGSS.MS-PS1-4

Is hammering wood together to build a house a chemical or physical change?

• chemical
• physical

Tags

NGSS.MS-PS1-2

A change in the size, shape, or state of matter.

• chemical change
• physical change
• chemical reaction
• electron change

Tags

NGSS.MS-PS1-4