Representations of Solutions

If a solution is prepared from 5g NaCl in enough water to make a 120mL solution, the mass-volume concentration is:

• 0.04%

• 4.2%

• 24%

• 6.7%

Suppose that a solution was prepared by dissolving 18.0 g of sugar into 100g of water. The percent by mass in the nearest whole number would be calculated as follows:

• 15%

• 18%

• 6%

• 82%

A practice of both science and engineering is to use and construct models as helpful tools for representing ideas and explanations. These tools include diagrams, drawings, physical replicas, mathematical representations, analogies, and computer simulations.

• Developing & Using Models

• Constructing Explanations & Designing Solutions

• Engaging In Agrument From Evidence

• Obtaining, Evaluating, & Communicating Information

Tags

NGSS.MS-ETS1-4

This is a type of mixture where one substance dissolves into another

• Solution

• Miscibility

• Compound

• Solubility

The substance that does the dissolving

• Solute

• Solvent

• Solution

• Miscibility

The substance getting dissolved

• Solvent

• Solute

• Solution

• Mixture

Which substance is SOLUBLE in water?

• sand

• oil

• salt (sodium chloride)

• sulfur

Solubility is defined as

• the ability to catch on fire

• the ability to be dissolved

• the ability to fly.

• the ability to get on Mrs. D's nerves.

Solutions are composed of __________ .

• salts and solutes

• solvents and salts

• solutes and alloys

• solutes and solvents

If I want more sugar to dissolve in water, I should heat the water

• true

• false

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5