Basics of Matter
Chemistry Techniques
Physical and Chemical Properties
Elements, Compounds, and Mixtures
Atomic Structure
100

A measure of how much matter is in an object.

What is mass?

100

Using this device, a chemist can determine the mass of an object to nearest hundredth of a gram.

What is a triple beam balance?

100
A process where matter changes form, but does not change its chemical identity.

What is physical change?

100

This is a substance that is made of just one type of atom.

What is an element?

100
A scientist can count the number of this particle to identify the chemical identity of an atom.

What is proton?

200

A measure of how much space an object takes up.

What is volume?

200

A volume of liquid can be determined using this chemistry tool.

What is a graduated cylinder?

200

A measure of how well a substance can dissolve in a liquid.

What is solubility?

200

Water, which is made of hydrogen and oxygen atoms in a fixed proportion, is an example of this type of substance.

What is a compound?

200

Nearly all of the mass in an atom is contained within the center, called this.

What is nucleus?

300

A measure of how compact a substance is.

What is density?

300

This technique can be used to separate a liquid from an undissolved solid.

What is filtration?

300

When food cooks, it undergoes what is called the Maillard reaction, where it browns and develops flavor. This is an example of what kind of change?

What is a chemical change?

300

This type of mixture is uniform, and to the naked eye is indistinguishable from a pure substance.

What is a homogeneous mixture?

300

A neutral atom will need to contain an equal number of these two particles.

What are protons and electrons?
400

If you need to determine the density of an object, perform this calculation.

What is mass divided by volume?

400
This technique can be used to separate a liquid from a dissolved solid.

What is distillation (boiling)?

400

When objects made of glass are rapidly heated and then cooled, they can shatter. This is an example of what kind of change?

What is a physical change?

400

Oil and water form this type of mixture, where there is a clear separation between different substances.

What is a heterogeneous mixture?

400

Elements commonly have multiple stable isotopes, which differ from each other by the number of this particle in the nucleus.

What is neutron?

500

An object that has a density of 2.00 g/mL will surely do this if placed in water.

What is sink?

500

This technique can be used to separate two immiscible liquids (liquids that do not mix).

What is decanting?

500

A measure of how well a substance can carry heat, sound, or electric current.

What is a conductivity?

500

All of the known elements are organized into this.

What is the periodic table?

500

An atom that contains differing numbers of protons and electrons is known as this.

What is an ion?