Solutions

What is the primary solvent in air?

• Carbon Dioxide

• Argon

• Oxygen

• Nitrogen

Which term describes moles of solute per liter of solution?

• Molarity

• Molality

• Mass Percent

• Density

Tags

NGSS.HS-PS1-5

Why does soda fizz when opened?

• Increase in temperature

• Increase in solute concentration

• Decrease in solute concentration

• Decrease in pressure

Tags

NGSS.MS-PS3-5

How does temperature affect the solubility of gases in liquids?

• Varies randomly

• No effect

• Increases solubility

• Decreases solubility

Tags

NGSS.MS-PS1-4

What principle explains why polar solvents dissolve polar solutes?

• Opposites attract

• Like dissolves like

• Molecular dispersion

• Solubility equilibrium

How does tetrodotoxin affect nerve cells?

• Decreases blood flow

• Increases oxygen supply

• Binds sodium channels

• Enhances nerve signaling

What is the effect of heat waves on aquatic life?

• Increase biodiversity

• Increase oxygen levels

• Decrease oxygen levels

• No effect

Tags

NGSS.HS-LS2-2

NGSS.HS-LS2-3

Which concentration term is temperature-independent?

• Molality

• Molarity

• Density

• Volume percent

What role does molecular polarity play in solubility?

• It has no role

• It increases solubility

• It determines solubility

• It decreases solubility

Why is understanding air as a solution important?

• It helps in weather prediction

• It aids in plant growth

• It reduces pollution

• It explains breathing processes

Tags

NGSS.HS-LS1-7