First Semester Exam

Front

What do metals tend to do in chemical reactions?

Back

Metals tend to lose electrons in chemical reactions.

Front

What is the chemical formula for iron (III) bromide?

Back

FeBr₃

Front

What is the electron configuration for the ion Ca²⁺?

Back

1s² 2s² 2p⁶ 3s² 3p⁶

Front

What is the name of the ionic compound BeCl₂?

Back

beryllium chloride

Front

What should be labeled on a bottle containing MgSO₄?

Back

magnesium sulfate

Front

What is the general property of metals regarding conductivity?

Back

Metals are good conductors of electricity and heat.

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

What is the difference between cations and anions?

Back

Cations are positively charged ions (lost electrons), while anions are negatively charged ions (gained electrons).

Front

What is the significance of the Roman numeral in iron (III) bromide?

Back

The Roman numeral indicates the oxidation state of the metal, which in this case is +3.

Front

What is the formula for calculating the number of protons in an atom?

Back

The number of protons is equal to the atomic number of the element.