Covalent/Ionic
Gas Laws
Reactions
Stoichiometry
Solutions
100

Identify if the following are covalent or ionic

- NaNO3

- CO2

-BaBr2

- NaNO3 - Ionic

- CO- Covalent

- BaBr2 - Ionic

100

What happens to the volume of a gas if the temperature is increased?

Increases

100

Identify the type of reaction: 

A + B --> C

Synthesis

100

Define Limiting Reactant

The reactant that "runs out" first 

100

If you mix 5.5 moles with 3 L of water, what is the molarity of the solution? 

1.83 M

200

What is the correct balanced formula when aluminum and sulfur form an ionic compound?

Al2S3

200

What happens to pressure of a gas when volume decreases?

Increases

200

Balance the following equation:

___ H2O (l) → ___ H(g)  + ___ O2 (g)

2 H2O (l) → 2 H(g)  + 1 O2 (g)

200

4 Fe (s) + 3 O2 (g) → 2 Fe2O3 (s) + heat 

If 4 moles of iron react with excess oxygen, how many moles of Fe2O3 forms?

2 moles

200

Explain 2 ways to make a solution more concentrated

Add solute, remove solvent 

300
Define cation

A positively charged ion

300

What variable(s) are held constant in Avogadro's Law?

Pressure and Temperature

300

Identify the type of reaction:

2 NaBr +  CaF2 → CaBr2 + 2 NaF  

Double replacement

300

If 6 moles of H2O are produced in a reaction, how many grams is this?

108 grams

300

An acid is a solution that has a pH of _______

A base is a solution that has a pH of ________

An acid is a solution that has a pH of less than 7

A base is a solution that has a pH of more than 7

400

Halogens have ___ valence electrons, therefore form _____ (positive/negative) ions by ______ (gaining/losing) ______ (#) electrons.

Halogens have 7 valence electrons, therefore form negative ions by gaining 1 electrons.

400

A rigid container of oxygen gas has a pressure of 1.80 atm at a temperature of 351 K.  What is the pressure at 193 K?

0.988 atm

400

Balance the following equation:

___ C2H5OH (l) + ___O2 (g) → ___ CO2 (g)+ ___H2O (g)

2 C2H5OH (l) + 7 (g) → 4 CO2 (g)+ 6 H2O (g)

400

How many moles if 230 grams of NaOH?

5.75 moles

400

You wish to dilute a 3 L of a 7 M solution of HCl to 1.5 M concentration. What is the final volume of solution needed? 

14L 

500
Explain the difference between covalent and ionic bonds. Mention electrons in your answer.

Covalent - 2 or more nonmetals that SHARE electrons

Ionic - metal and a nonmetal that TRANSFER electrons

500

You are studying a 2 moles of N2 gas at 273K. If the pressure of this gas is 2.5 atm, what is the volume in L?

17.9 L

500

If lithium is the most reactive element, will the following reaction occur? Explain.

Na (s) + LiCl --> ?

No, the single element must be more reactive that the element its replacing in the compound. Na is not more reactive that lithium, so no reaction.

500

You start this reaction with 10 moles of N2 and 24 moles of O2. Use a BCA table to determine how many moles of N2O5 will form.

2 N2 + 5 O2 ⟶ 2 N2O5

9.6 moles

500

19.2 g of HNO3 are used to form a solution with a volume of 0.50 L.  What is the molarity?

0.6M

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