Which shiny, electrically conductive element has a reputation for purity and warding off evil?

• copper

• silver

• gold

• mercury

Tags

NGSS.HS-PS1-1

Precipitation reactions: when chemicals in a solution react to form ___

• a gas

• a liquid

• a solid

• rain

Tags

NGSS.HS-ESS2-5

What kind of substance is water particularly good at dissolving?

• molecular compounds

• fats and oils

• ionic compounds

• organic compounds

Tags

NGSS.HS-ESS2-5

When some ionic compounds form through reactions in solution, they fall out as a ___

• consolidated element

• heavy sludge

• dense discharge

• solid precipitate

The word precipitate is both a ___

• noun and verb

• noun and adjective

• pronoun and adverb

• preposition and interjection

Ionic compounds are generally called ___

• distillates

• sediments

• salts

• coprolites

Sodium chloride is commonly called ___

• chalk

• table salt

• baking soda

• limestone

Tags

NGSS.MS-PS1-1

At today's market value, how much gold is dissolved in the ocean?

• one hundred million dollars

• one billion dollars

• one trillion dollars

• one hundred million trillion dollars

What is the chemical formula for silver nitrate?

• AgNO₃

• Ag(NO₃)₂

• Ag₂NO₃

• Ag(NO)₃

Cations are ___

• positively charged ions

• negatively charged ions

• attracted to bar magnets

• repelled by bar magnets