Bell Work 2-25-2020

An ionic compound of calcium and chlorine would be named

• calcium chlorine.
• calcium chlorite.
• calcium chloride.
• chlorine calcium.

Tags

NGSS.HS-PS1-2

A covalent compound made of one sulfur and two oxygen atoms would be named

• sulfur dioxide.
• sulfur oxide.
• disulfur oxide.
• sulfide oxygen.

An ionic compound made of copper (Cu²⁺) and oxygen would be named

• copper oxygen.
• copper oxide.
• dicopper oxide.
• copper(II) oxide.

Tags

NGSS.HS-PS1-1

The covalent compound N₂O₅ would be named

• nitrogen oxide.
• dinitrogen oxide.
• nitrogen pentoxide.
• dinitrogen pentoxide.

The chemical formula for an ionic compound of potassium and oxygen is

• KO.
• K₂O.
• K₂O₂.
• KO₂.

Tags

NGSS.MS-PS1-1

Give the formula for phosphorus trifluoride

• P₃F
• PF
• PF₃
• P₃F₃

PBr₅

• Phosphorus Bromide
• Phosphorus Pentabromide
• Pentaphosphorus bromide
• Phosphorus Bromine

A covalent bond is a bond between a _____ and a ______

• metal, nonmetal
• metal, metal
• nonmetal, nonmetal

Write the formula for Dinitrogen Pentaoxide.

• N₅O₂
• N₂O₅
• (N2O)₅
• O₅N₂

Tags

NGSS.HS-PS1-1

How do covalent bonds form?

• Donating & receiving valence e- between atoms.
• Opposite slight charges attract each other between compounds.
• Scientists are still not sure how they form.
• Sharing valence e- between atoms.

Tags

NGSS.HS-PS1-2