Which of the following is the correct chemical format for a formula unit of aluminum bromide

• AlBr₃
• Al₂Br6
• Al₃Br₉
• Al₄Br₁₂

Which of the following formulas is incorrect?

• Al₂(SO₄)₃
• AIOH₃
• Ca(OH)₂
• (NH₄)₂S

In order to seperate two liquids from each other by distilling they must...

• evaporate at the same temperture
• evaporate at different temperatures
• both be molecular substances
• both be inorganic compounds

__________ is an allotrope of carbon

• diamond
• Carbon Monoxide
• Ozone
• Black phosphorous

Which is the charge that results when oxygen becomes an ion?

• +2
• -3
• +3
• -2

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Group 13 elements tend to acquire which charge when they form ions?

• +3
• -5
• +5
• -3

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which is true of binary ionic compounds?

• They consist of only two atoms
• They consist of atoms of only two elements
• They contain two different atoms
• They have bonds that share two valence electrons

How many total electrons must be transferred to form one formula unit of the compound Al₂O₃

• 2
• 3
• 6
• 5

Tags

NGSS.HS-PS1-2

Which is the correct formula for the compound formed between berylium and nitrogen?

• BeN
• Be₃N
• Be₃N₂
• Be₂N₃

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the correct formula for the compound formed between Magnesium and the phosphate ion?

• MgPO₄
• Mg₃PO₂
• Mg₃(PO₄)₂
• MgP₂O₈

Tags

NGSS.HS-PS1-2