CP Chem Exam Review Part 2

Front

What is the formula to calculate the volume of a liquid given its mass and density?

Back

Volume = Mass / Density

Front

What is the density of a substance if its mass is 14.5 grams and its volume is 1.07 ml?

Back

Density = Mass / Volume = 14.5 g / 1.07 ml = 13.6 g/ml

Front

What is the oxidation state of an atom with 5 valence electrons?

Back

-3

Front

What type of element is characterized by having properties of both metals and non-metals?

Back

Metalloid

Front

What class of elements includes good conductors of heat and electricity?

Back

Metals

Front

What is the name of the compound PbCl₄?

Back

Lead (IV) Chloride

Front

How do you determine the oxidation state of an element in a compound?

Back

By considering the number of valence electrons and the overall charge of the compound.

Front

What is the general trend of electronegativity in the periodic table?

Back

Electronegativity increases across a period and decreases down a group.

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons determine an atom's ability to bond with other atoms.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.