Chemistry Final Exam

Front

What is the formula for tetraarsenic decoxide?

Back

As₄O₁₀

Front

If an atom has 3 electrons, how many protons does it have?

Back

3

Front

What is the subatomic particle with a negative charge?

Back

Electron

Front

How can you determine if a chemical equation is balanced?

Back

By checking if the number of atoms of each element is the same on both sides of the equation.

Front

In the compound 5H₂O, how many atoms of Hydrogen are there?

Back

10

Front

What is the definition of an atom?

Back

The smallest unit of matter that retains the properties of an element.

Front

What are the three main subatomic particles?

Back

Protons, neutrons, and electrons.

Front

What charge do protons carry?

Back

Positive charge.

Front

What is the mass of a neutron compared to a proton?

Back

Approximately the same.

Front

What is the significance of the atomic number?

Back

It represents the number of protons in an atom and determines the element's identity.