Chemistry Semester 1 Review & Exam

Front

How many grams are in 0.52 kg?

Back

520 g

Front

True or False: Density is the same regardless of size or shape of an object if both objects are made of the same material.

Back

True

Front

What is an alloy?

Back

A mixture of two or more metals.

Front

How many neutrons are in an atom with a mass number of 52 and an atomic number of 26?

Back

26 neutrons.

Front

Which number specifically identifies the element?

Back

Atomic number.

Front

What is the formula for calculating density?

Back

Density = Mass/Volume.

Front

What is the difference between a compound and a mixture?

Back

A compound is a substance formed when two or more elements chemically bond, while a mixture is a combination of two or more substances that retain their individual properties.

Front

What is the pH scale used for?

Back

To measure the acidity or basicity of a solution.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is the periodic table?

Back

A tabular arrangement of elements organized by increasing atomic number.