Solids, Acids, and Bases: bioboosters and worksheet

Homogeneous mixture or heterogeneous mixture?

Hotdog relish

heterogeneous

Homogeneous mixture or heterogeneous mixture?

grapefruit juice

heterogeneous

Homogeneous mixture or heterogeneous mixture?

soda

homogeneous

Homogeneous mixture or heterogeneous mixture?

granola

heterogeneous

Homogeneous mixture or heterogeneous mixture?

vegetable soup

heterogeneous

Homogeneous mixture or heterogeneous mixture?

apple juice

homogeneous

Is it a pure substance, a solid solution, a liquid solution, a gas solution, or a mechanical mixture?

trail mix

mechanical mixture

Is it a pure substance, a solid solution, a liquid solution, a gas solution, or a mechanical mixture?

alloy

solid solution

Is it a pure substance, a solid solution, a liquid solution, a gas solution, or a mechanical mixture?

silver

pure substance

Is it a pure substance, a solid solution, a liquid solution, a gas solution, or a mechanical mixture?

air

gas solution

Is it a pure substance, a solid solution, a liquid solution, a gas solution, or a mechanical mixture?

alcohol

liquid solution

Use the particle theory to explain the difference between a pure substance and a mixture.

A pure substance is made of the same type of particle, while a mixture is made of many different types of particles.

Use the particle theory to explain the difference between a solution and a mechanical mixture.

The particles in a solution are smaller and connected together, appearing together as a single substance. A mechanical mixture has larger particles that are clumped together, which do not appear as a single substance. You can tell the particles apart.

Describe whether each of the following is a solution or not: a mixture of clay and water

It is not a solution because the different particles are visible to the naked eye and can be filtered.

Describe whether each of the following is a solution or not: a mix of salt and water

Yes, because the different particles are invisible to the naked eye and can’t be filtered.

Describe whether each of the following is a solution or not: tomato juice

No, it is made up of pulp that settles over time that separate from the rest of the juice.

Draw a diagram to show the differences between pure substances and mixtures.

Draw a diagram to show the differences between heterogeneous and homogeneous mixtures.

What is matter?

Any material that occupies space and mass

What are properties?

The characteristics used to describe matter.

What is a mixture?

A material that has more than one set of properties.

What does heterogeneous mean?

A mixture where the different parts can be identified easily with the unaided eye.

What does homogeneous mean?

A mixture that appears the same all over; the individual materials are not visible.

What does mechanical mixture mean?

Made up of visible parts.

What is a homogeneous mixture (solution)?

Every part of the material is the same (only one set of properties).

What is a pure substance?

Any material made up of only one kind of extremely small particle.

What does dissolving mean?

Forming a solution by mixing two or more materials.

What is evaporation?

The change from a liquid state to a gas.

What is a solute?

The substance that dissolves in a solvent to form a solution.

What is a solvent?

The substance that dissolves a solute to form a solution.

What does soluble mean?

Able to be dissolved in a particular solvent.

What does insoluble mean?

Not able to be dissolved in a particular solvent.

Soluble or insoluble?

BaCrO₄

insoluble

Soluble or insoluble?

PbBr₂

Insoluble

Soluble or insoluble?

KCl

Soluble

Soluble or insoluble?

Mg(OH)₂

Insoluble

Soluble or insoluble?

Na₃PO₄

Soluble

Soluble or insoluble?

Ag₂SO₄

Insoluble

Soluble or insoluble?

Sr(NO₃)₂

Soluble

Soluble or insoluble?

KC₂H₃O₂

Soluble

Soluble or insoluble?

CaCO₃

Insoluble

Soluble or insoluble?

NH₄I

Soluble