Chemistry Semester 1 Review

Front

What is the definition of a pure substance?

Back

A pure substance is matter that consists of matter with a composition that is fixed in a definite proportion at all times.

Front

What are compounds?

Back

Compounds are pure substances that consist of two or more elements in combination.

Front

Which element has a larger atomic radius than Zinc?

Back

Strontium has a larger atomic radius than Zinc.

Front

How many significant figures are in the number 0.000008?

Back

There is 1 significant figure in the number 0.000008.

Front

How many significant figures are in the number 0.00400?

Back

There are 3 significant figures in the number 0.00400.

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of chemical elements, organized by their atomic number, electron configuration, and recurring chemical properties.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance that cannot be broken down into simpler substances, while a compound is made up of two or more elements chemically combined.

Front

What are the three states of matter?

Back

The three states of matter are solid, liquid, and gas.

Front

What is the definition of matter?

Back

Matter is anything that has mass and occupies space.

Front

What is the significance of significant figures in measurements?

Back

Significant figures indicate the precision of a measurement and help convey the uncertainty in the data.