Chemistry Semester Test Review

Front

What is the formula for calculating density?

Back

Density = Mass / Volume

Front

What is the density of an object with a mass of 14g and a volume of 2cm³?

Back

7 g/cm³

Front

What is isotopic notation?

Back

Isotopic notation represents an isotope of an element, showing the element's symbol, mass number, and atomic number.

Front

What is the isotope of Carbon with a mass number of 14?

Back

Carbon-14

Front

What are alkali metals?

Back

Alkali metals are elements in group 1 of the periodic table, known for being highly reactive and having one electron in their outer shell.

Front

What is the general formula for a single replacement reaction?

Back

A + CD → C + AD

Front

What type of reaction is represented by the formula A + CD → C + AD?

Back

Single Replacement Reaction

Front

What is the ionic charge typically formed by halogens?

Back

-1

Front

What are halogens?

Back

Halogens are elements in group 17 of the periodic table, known for their reactivity and tendency to form salts.

Front

What is the difference between a combination reaction and a decomposition reaction?

Back

A combination reaction involves two or more substances combining to form one product, while a decomposition reaction involves one substance breaking down into two or more products.