Chem H, Unit 1-Classifying Matter 🧪💚

*(Answer with term)

Matter

That which occupies space and mass; a physical substance

Atom

An extremely small part, quantity, or amount

Pure Substance

A sample of matter with both definite and constant composition with distinct chemical properties

Element

The basic assumptions or principles of a subject

Compound/Molecule

To compound so as to form a whole/A group of atoms bonded together

Mixture

A substance made by mixing other substances together

Homogeneous

Consisting of parts all of the same kind

Solution

A liquid mixture (the solute & the solvent)

Heterogeneous

A process involving substances in different phases (ex. Liquid, solid, gas, etc.)

Which of the following are pure substances?

a. Solution

b. COMPOUND

c. Homogeneous mixtures

d. Colloids

Which of the following is NOT a pure substance?

a. MILK

b. Oxygen

c. Water

d. Carbon Dioxide

A substance that is made up of only one kind of atom is a(n)….

a. Compound

b. Homogeneous mixture

c. ELEMENT

d. Solution

If an unknown substance CANNOT be broken down into simpler substances, it is….

a. A compound

b. An element

c. Made of one kind of atom

d. BOTH B AND C

What is the symbol for aluminum?

a. AL

b. Al

c. Au

d. A

The symbol for gold is…

a. Au

b. Al

c. Gl

d. Go

If a material contains two or more elements joined in a fixed proportion it is a(n)…

a. Mixture

b. Solution

c. Atom

d. COMPOUND

Water is a compound because it…

a. Can be broken down into simpler substances.

b. Always has two hydrogen atoms for each oxygen atom.

c. Is made of water atoms joined together.

d. BOTH A AND B

Which of the following is a mixture?

a. Carbon dioxide

b. Silicon

c. Silicon dioxide

d. SAND

Which of the following is a characteristic of a mixture?

a. HAS VARYING PROPERTIES

b. Has a fixed composition

c. Contains only pure substances

d. Both a and b

A mixture that appears to contain only one substance is a(n)…

a. HOMOGENEOUS MIXTURE

b. Heterogeneous mixture

c. Compound

d. Element

Which of the following is a heterogeneous mixture?

a. Water in a swimming pool

b. Sugar water

c. A JAR OF MIXED NUTS

d. Stainless steel

A mixture can be classified as a solution, suspension, or colloid based on the…

a. Number of particles it contains

b. Size of its largest particles

c. Color of its particles

d. Size of its smallest particles

You are about to open a container of soy milk but notice that there are instructions to "shake well before serving." The soy milk is most likely a…

a. Solution

b. Pure substance

c. Colloid

d. SUSPENSION

Matter that always has exactly the same composition is classified a(n) pure substance (or substance)…

True

Pure substances are either colloids or heterogeneous.

False

An element has a fixed composition because it contains only one type of atom.

True

A compound can be made from two or more elements or other compounds joined together in a fixed composition.

True

The substances is a(n) heterogeneous mixture are evenly distributed throughout the mixture.

False

In a(n) heterogeneous mixture, parts of the month store are noticeably different from one another.

True