Writing Chemical Equations from Word Descriptions

What is the chemical formula for fluorine gas?

• F

• F2

• F3

• Fl

How many fluorine atoms are there in the balanced equation for the reaction between phosphorus and fluorine?

• 10

• 20

• 5

• 2

What is the charge of a calcium ion?

• -1

• +2

• +1

• -2

What is the formula for calcium nitride?

• CaN

• Ca3N2

• Ca2N3

• CaN2

Tags

NGSS.MS-PS1-1

What is the phase of sulfur trioxide in the reaction with sulfur and oxygen?

• Aqueous

• Gas

• Liquid

• Solid

How many oxygen atoms are there in the balanced equation for the reaction between sulfur and oxygen?

• 2

• 8

• 24

• 12

Tags

NGSS.MS-PS1-5

What is the chemical formula for hydrochloric acid?

• HCl

• H2Cl2

• H2Cl

• HCl2

Which of the following compounds is soluble in water?

• AgCl

• BaCl2

• PbCl2

• HgCl2

What are the products of a combustion reaction involving pentane?

• CO and O2

• CO2 and H2O

• CO and H2O

• CO2 and O2

How many oxygen atoms are there in the balanced combustion reaction of pentane?

• 8

• 10

• 12

• 16

Tags

NGSS.HS-PS1-7