Show:
Unit 6
Unit 7
Unit 8
Unit 9
Unit 10
100

What is a set of two or more atoms that behave as a unit with a single charge?

Polyatomic Ion

100

What do we call the starting materials that come before the arrow in a chemical reaction?

Reactants

100

The reactant that “limits” the production of the product(s) in a chemical reaction is called the...?

Limiting Reactant

100

What is the scale that categorizes acids and bases from 0 to 14.

The pH Scale

100

Which solution is more concentrated? 1 M or 1.5M

1.5M

200

In CxCly, what is y if the compound name is Tetracarbon Trichloride?

3

200

What do we call the numbers placed out in front of elements/compounds used to balance a chemical reaction?

Coefficient

200

2H2SiCl2(aq) + 4H2O(l) --> H8Si4O4(s) + 8HCl(aq)


Using the equation above, how many moles of hydrochloric acid are in the products?

8 moles

200

The pH of bleach is approximately 13. This would be considered a strong _______ .

Base

200

What is the correct unit for moles per liter?

M (molarity)

300

Name the following covalent compound: N2S4

Dinitrogen Tetrasulfide

300

How many total atoms are in CH3NO2?

7

300

Cheeseburger Recipe:
2 buns + 1 meat patty + 1 cheese --> 1 cheeseburger

You have 35 meat patties, 40 pieces of cheese, and 75 buns. How many cheeseburgers can you make and what is the limiting reactant?

35 cheeseburgers
Limiting Reactant = meat patties

300

If a solution has a pOH of 9, what is the pH? Is this solution acidic or basic?

pH = 5
Acidic

300

How can you slow down a reaction?

cool it down

400

Name the following compound: Cs2O

Cesium Oxide

400

Classify the type of reaction:
MgS + Cu(NO3)2 --> Mg(NO3)2 + Cu2S

Double Replacement

400

Calculate the molar mass of H2O4
(Don't forget your units)

66.016 g/mol

400

If a solution has a pH of 4, what is the pOH? Is this solution acidic or basic?

pOH = 10
acidic

400

If a reaction has higher energy in the products than the reactants, it is ....    (endothermic or exothermic)

Endothermic

500

Name the following compound: Mg(NO3)2

Magnesium Nitrate

500
  1. Balance the following reaction:

____Zn + ____CuCl2 --> ____ZnCl3 + ____Cu

2Zn + 3CuCl2 --> 2ZnCl3 + 3Cu

500

Hydrogen gas reacts with oxygen gas to produce water, as shown below:

2H2 + O2 --> 2H2O

How many moles of hydrogen gas are needed to completely react with 10 moles of oxygen gas?

5 moles of hydrogen gas

500

A solution that has an equal amount of hydrogen ion (H+) and hydroxide ions (OH-) can be described as...

Neutral

500

How many mL of a 10M solution do you need to make 10mL of a 2M solution?

2mL