Science 10 - Chemistry Unit

Compounds

100

Is NaCl ionic, covalent, polyatomic or multivalent?

NaCl (salt) is ionic

200

Name AsBr3

Arsenic tribromide

300

Name CaCO₃

Calcium carbonate

400

Name NH₄OH

Ammonium hydroxide

500

Name Fe₃N₄

Iron (IV) nitride

Formulas

100

All compound names which do not involve a polyatomic ion end in _____.

-ide

200

Write beryllium nitride as a formula

Be₃N₂

300

Write niobium (IV) chloride as a formula

NbCl₅

400

Write scandium dichromate as a formula

Sc₂(Cr₂O₇)₃

500

Write manganese (II) bisulfate

Mn(HSO₄)₂

Acids & Bases

100

What pH best indicates a neutral solution?

7

200

The closer a solution gets to a pH of 0, the more ___ it has

H+ ions

300

What is the relative composition of H+ and OH- ions in acids, bases and neutral solutions?

Acids have more H+ than OH-, bases have more OH- than H+, and neutral solutions contain about an equal amount of each

400

Name HNO₃ (aq)

Nitric acid

500

Describe what the following endings of a compound name mean for their corresponding acid name (acid nomenclature rules) = -ide, -ate, -ite

-ide becomes hydro_______ic acid

-ate becomes _______ic acid 

-ite becomes _______ous acid

Moles

100

I have 15 grams of arsenic. How many moles do I have?

0.2 mol

200

I have 3 moles of tin. How many grams do I have?

356.1 g

300

I have 16 moles of an unknown element in the form of 6.2 grams. What is the the molar mass of this element? Do not round up or down.

0.3875 g/mol

400

What is the molar mass of ethanol (C₂H₆O)?

46 g/mol

500

What is the molar mass of calcium phosphate (Ca₃(PO₄)₂)?

310.3 g/mol

Balancing Equations

100

_Na + _O₂ = _Na₂O

4Na + 1O₂ = 2Na₂O

200

_N₂ + _H₂ = _NH₃

1N₂ + 3H₂ = 2NH₃

300

_CH₄ + _O₂ = _CO₂ + _H₂O

1CH₄ + 2O₂ = 1CO₂ + 2H₂O

400

_C₃H₈ + _O₂ = _CO₂ + _H₂O

1C₃H₈ + 5O₂ = 3CO₂ + 4H₂O

500

_C₂H₆ + _O₂ = _CO₂ + _H₂O

2C₂H₆ + 7O₂ = 4CO₂ + 6H₂O