Periodic Table
Bonding and Molecular Structure
Stoiciometry and Chemical Reactions
Acids and Bases
Thermodynamics
100

What is the symbol for the element with atomic number 1?

H

100

What is the term for the sharing of electrons between two atoms?

Covalent Bonding

100

In a balanced chemical equation, this represents the number of atoms or molecules of each substance involved.

Coefficients

100

A substance that donates protons in a chemical reaction.

Acid

100

The minimum energy required for a chemical reaction to occur.

Activation energy

200

Which element has the symbol Fe

Iron

200

What is the term for a chemical bond formed by the complete transfer of electrons from one atom to another?

Ionic Bonding

200

This law states that mass is conserved in a chemical reaction.

Law of Conservation of Mass

200

A substance that accepts protons in a chemical reaction.

Base

200

The law that states the total energy of an isolated system remains constant over time.

Law of Conservation of Energy

300

What is the atomic number of the element with the symbol Na

11

300

What is the term for a chemical bond where electrons are shared unequally between two atoms?

Polar covalent bond

300

This term refers to the ratio of the actual yield to the theoretical yield, multiplied by 100%.

Percent yield

300

This term represents the negative logarithm of the hydrogen ion concentration in a solution.

pH

300
The measure of disorder or randomness in a system.

Entropy

400

What element has the chemical symbol Ag

Silver

400

What is the term for a bond between a metal and a nonmetal where electrons are transferred from a metal to a nonmetal?

ionic bond

400

This term refers to the reactant that is completely used up in a chemical reaction.

limiting reactant

400

This type of reaction involves the transfer of a proton from one molecule to another.

acid-base reaction

400

This principle states that in a spontaneous process, the total entropy of the universe always increases.

Second Law of Thermodynamics

500

What noble gas has the atomic number 18

Neon

500

What is the term for a molecule that has a positive and negative end due to the unequal distribution of electrons?

polar molecule

500

The type of reaction that involves the exchange of ions between two compounds.

Double displacement reaction
500

Acid is found in citrus fruits such as lemons and oranges.

Citric acid

500

Type of reaction that releases heat energy to the surroundings.

Exothermic reaction

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