Q.1 Chem-1 Midterm Review

Front

What is the measuring system used in science?

Back

The SI system (International System of Units) is the measuring system used in science.

Front

Convert 2.5 cm to mm.

Back

2.5 cm = 25 mm.

Front

What is the measure of how much space an object takes up?

Back

Volume is the measure of how much space an object takes up.

Front

What type of matter is represented by a particle diagram showing identical particles?

Back

Element is represented by a particle diagram showing identical particles.

Front

What is a chemical substance composed of atoms with the same number of protons?

Back

An Element is a chemical substance composed of atoms with the same number of protons.

Front

Define 'mass'.

Back

Mass is the amount of matter in an object, typically measured in grams or kilograms.

Front

Define 'weight'.

Back

Weight is the force exerted by gravity on an object, calculated as mass times the acceleration due to gravity.

Front

What is a 'compound'?

Back

A compound is a substance formed when two or more elements chemically bond together.

Front

What is a 'mixture'?

Back

A mixture is a combination of two or more substances that retain their individual properties.

Front

Differentiate between homogeneous and heterogeneous mixtures.

Back

Homogeneous mixtures have a uniform composition throughout, while heterogeneous mixtures have distinct, separate components.