Gases, Solutions, Acids/Bases Review

According to kinetic molecular theory, which answer describes the particles in an IDEAL gas? Select TWO correct answers.

• The particles do not exert attractive forces on each other.

• The particles exert attractive forces on each other.

• The particles will move in a random motion.

• The particles move in a very orderly pattern.

• The particles, upon collision, decrease the energy of the system

Tags

NGSS.HS-PS3-2

How would I calculate the volume of an ideal gas if given the temperature in Kelvin, the pressure, and the number of moles?

• Convert the Kelvin temperature to Celsius, then divide the pressure by the number of moles.

• multiply the moles and temperature by the ideal gas constant (R) and then divide by pressure

• Convert the liters to milliliters and then multiply everything together

• multiply the pressure and the volume and then divide by the number of moles and the temperature.

Why is gasoline insoluble in water?

• Gasoline is nonpolar, but water is polar.

• Gasoline is flammable, and water is not flammable.

• Water molecules are much smaller than molecules in gasoline.

• Gasoline is less dense than water.

What type of solutions are described by the following examples? Complete the following statements by moving the answers to the correct boxes.

• too much sugar added to tea settles

• supersaturated solution

• sugar stirred in tea stops dissolving

• saturated solution

• sugar stirred into tea keeps dissolving

• unsaturated solution

Non-electrolytes are not good conductors of electricity because

• no atoms are formed in solution

• no molecules are formed in solution

• no ions are formed in solution

• too many ions are formed in solution

Using the table, which of the following salts is insoluble in water? Select TWO correct answers.

• Pb(OH)₂

• NaNO₃

• CaCrO₄

• Pb(ClO₃)₂

Tags

NGSS.HS-ESS2-5

Match the description to the correct image below.

• strong electrolyte

• 
• weak electrolyte

• 
• nonelectrolyte

• 

Tags

NGSS.HS-PS1-3

A saturated solution containing 170 g of solute in 100 g of water at 80°C. In this scenario, what compound does the saturated solution contain? Select the correct area on the graph.

• Potassium Nitrate

• Sodium Chloride

• Calcium Chloride

• Magnesium Sulfate

Tags

NGSS.HS-PS1-5

For each scenario, analyze how the rate of dissolving of a solid substance will change based on different factors. Select the correct answer in each row.

• Decrease

• stirring the solute

• Increase

• breaking the solute into smaller pieces

• Increase

• decreasing the temperature of the solvent

Brønsted–Lowry acids have the ability to:

• "donate" hydrogen ions

• "donate" hydroxide ions

• "accept" hydrogen ions

• "accept" hydroxide ions