U5 Test Review

Balancing and Reaction Types

100

This type of chemical reaction brings 2 or more reactants together to form one singular product

Synthesis

200

This reaction type is a hydrocarbon combined with oxygen to produce water and carbon dioxide

Combustion

300

What type of reaction is represented below?

NaCl + AgNO₃ --> NaNO₃ + AgCl

Double replacement

400

Balance the equation (Show coefficients separated by comma):

NH₃ + CuO --> Cu + N₂ + H₂O

2, 3, 3, 1, 3

500

Balance the equation:

S + HNO₃ --> H₂SO₄ + NO₂ + H₂O

1, 6, 1, 6, 2

Moles and Bonding

100

What is the molar mass of water?

18 g/mol

200

What is the molar mass of Na₂SO₄?

142 g/mol

300

Draw the structure of NH₃. How many electrons are leftover on the nitrogen?

2

400

Use the following equation to answer the question:

N₂ + 3 H₂ --> 2 NH₃

If there are 3 moles of N₂ and 6 moles of H₂, what is the maximum number of NH₃ moles that can be produced?

4

500

Imagine Magnesium reacts with Chlorine. 

1. What type of bond does this represent?

2. Are electrons transferred or shared?

3. If electrons are transferred, how many, and which element gives electrons away?

4. What would the chemical formula of this compound be?

1. Ionic

2. Transferred

3. 2, Magnesium

4. MgCl₂

Acids and Bases

100

Acids taste _______, bases taste _______. 

sour, bitter

200

Acids produce this type of ion

Hydronium, H3O+, H+

300

the pH scale ranges from ______ to _______, with higher numbers representing _________

0-14, bases

400

A litmus strip is placed into a solution and it turns red. Is the solution acidic or basic?

Acidic

500

What is dissociation of an acid? How does it differ between weak and strong acids?

When the acid donates its hydrogen to water to produce hydronium ions. Strong acids completely dissociate, weak acids do not. 

Acids and Bases 2

100

A pH of ____ is neutral

7

200

Bases produce this type of ion

OH-, hydroxide

300

The product of a neutralization reaction is typically ______ and _______

Salt and water

400

How does concentration of solution affect the amount of it needed to neutralize?

Greater concentration, less needed to neutralize

500

What is the primary factor that determines the strength of an acid?

a. The concentration of hydronium ions (H3O+) it produces in solution

b. The ability to donate a pair of electrons

c. The ease with which it accepts an electron pair

d. The pH value of the acid in solution

a