CPC Unit 6 Vocab

What is a covalent bond?

• A bond formed by the transfer of electrons

• A bond formed by sharing electrons

• A bond that involves ionic charges

• A bond formed by nuclear forces

Tags

NGSS.HS-PS1-1

What defines a molecule?

• Two or more atoms ionically bonded

• A group of ions

• Two or more atoms covalently bonded

• An unbonded atom

Tags

NGSS.MS-PS1-1

What does a Lewis structure represent?

• The mass of a molecule

• How electrons are arranged in molecules

• The temperature of a substance

• The color of a compound

A sigma bond is characterized by:

• Parallel orbital overlap

• Direct overlap of bonding orbitals

• No electron sharing

• Multiple bonds between atoms

What is a pi bond?

• A bond formed by direct overlap of orbitals

• A bond formed when parallel orbitals overlap

• A bond that does not involve electron sharing

• A bond formed only in ionic compounds

An endothermic reaction requires:

• More energy to break bonds than is released

• Less energy to break bonds than is released

• No energy at all

• Energy only from heat sources

Tags

NGSS.HS-PS1-4

In an exothermic reaction:

• More energy is absorbed than released

• More energy is released than absorbed

• Energy is neither gained nor lost

• It occurs only in gases

Tags

NGSS.HS-PS1-4

What is an oxyacid?

• An acid that contains only hydrogen

• An acid that contains oxygen and hydrogen

• A base that contains oxygen

• An acid that contains any polyatomic ion and hydrogen

A chemical reaction involves:

• The creation of new atoms to form new substances

• Rearrangement of atoms to form new substances

• The disappearance of all original substances

• No change in the state of matter

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

What is a reactant?

• The product of a chemical reaction

• The starting substance in a chemical reaction

• A byproduct of a chemical reaction

• An unreacted substance left over after a chemical reaction

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-1