Chemistry Final Exam Review

The molar volume of a gas at STP occupies _____________.

• 22.4 L

• 0˚C

• 1 kiloPascal

• 12 grams

In a double replacement, ____________________

• The reactants are usually a metal and a nonmetal

• One of the reactants is often water

• The reactants are generally 2 ionic compounds in aqueous solutions

• Energy in the form of light or heat is often produced

If 2.00 L of a gas in a container at room temperature exerts a pressure of 4.00 atm. If the pressure doubles and the temperature remains the same, the volume would become ________.

• 16.0 L

• 2.00 L

• 4.00 L

• 1.00 L

If 7.00 grams of nitrogen gas are contained in a 5.00 L flask at 4.62 kPa. What is the temperature of the gas?

• 11.1 K

• 1.00 K

• 4.12 K

• 9.07 K

Which of the following statements is NOT true about what happens in all chemical reactions?

• The ways in which atoms are joined together change

• New atoms are formed as products

• The starting substances are called reactants

• The bonds of reactants are broken and new bonds of products are formed

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Chemical equations must be balanced to satisfy ____.

• The law of definite proportions

• The law of multiple proportions

• The law of conservation of mass

• Avogadro's principle

Tags

NGSS.HS-PS1-7

What are the coefficients that will balance the skeleton equation below?

AlCl₃ + NaOH → Al(OH)₃ + NaCl

• 1,3,1,3

• 3,1,3,1

• 1,1,1,3

• 1,3,3,1

Tags

NGSS.HS-PS1-7

A sample of gas occupies 52.0 mL at 20℃ and 1.00 atm. What volume will it occupy at 40℃ and 1.00 atm?

• 62.4 mL

• 44.8 mL

• 55.5 mL

• 48.7 mL

Tags

NGSS.HS-PS1-5

How many moles of aluminum are needed to react completely with 1.2 mol of FeO?

2Al(s) + 3FeO(s) → 3Fe(s) + Al₂O₃(s)

• 1.2 mol

• 0.8 mol

• 1.6 mol

• 2.4 mol

Tags

NGSS.HS-PS1-7

What is the name of H₂SO₄?

• hyposulfuric acid

• hydrosulfuric acid

• sulfuric acid

• sulfurous acid