Chemistry Unit 6 Review: Compounds

Compounds

100

Define what an intramolecular force is.

A force of attraction that occurs inside compounds between atoms.

Also called true bonding.

200

Describe the 3 types of intramolecular forces and give an example of each.

Ionic/Binary = M + NM 

Covalent/Molecular = NM + NM

Metallic = M + M

Examples will vary.

300

Look at the compound below:

CO₂

Name ALL forces that are present. How do you know?

Covalent (Intra) = share e^-

nm + nm 

Dispersion forces (all compounds experience this due to the random movement of electrons)

400

Explain why compounds form and give an example.

They form to fulfill the octet rule (wanting 8 valence electrons.) 

This is why Lithium (1 ve) will donate it to any halogen (7 ve)

OR

This explains why oxygen and 2 hydrogen will form water.

500

What kind of compound forms between Magnesium and Nitrite? Explain.

Ionic between the metal and nonmetals but covalent between the polyatomic atoms.

Writing & Naming Chemical Formulas

100

Write the formula for:

Pentafluoride Diphosphorous

F₅P₂

200

Name the following compound:

N₂O₃

Dinitrogen Trioxide

300

Name the following copound:

FePO₄

Iron (III) Phosphate

400

Write the formula for:

Copper (II) Nitrite

Cu(NO₂)₂

500

Write the formula and name for the following interaction:

Atomic #38 and Atomic #35

Strontium Bromide

SrBr₂

Composition

100

How many atoms are in 1 mole?

6.022 x 10²³

200

How many atoms of oxygen are there in 1 molecule of Ba(NO₃)₂?

6

300

What is the formula mass for Copper (II) Nitrite?

155.57

400

What is the percent Lithium in Lithium Hydroxide?

28.98%

500

What is the percent composition of each element in MgCO₃?

Mg =28.83%

C =14.24%

O = 56.93%

Conversions

100

How many moles are in 1.01 grams of hydrogen?

1 mole

200

How many grams are in 1 mole of Germanium?

72.63

300

What is another name for "1 mole"?

Avogadro's Number

400

What is the mass of 2.97 moles of Na₂S?

231.78g

500

How many moles of MgCl₂ are in 438.7g?

4.61 moles

RANDOM

100

What are the 3 subatomic particles that make up an atom? Name their location and charges as well.

Proton = positive nucleus

Neutron = neutral nucleus

Electron = negative electron cloud

200

Electron configuration for Magnesium.

1s²2s²2p⁶3s²

300

Define an isotope and give a real life example.

Carbon 12 and Carbon 14 (used for radioactive dating)

400

Why is Schrödinger's model of the atom better than Bohr's?

Bohr's only worked for Hydrogen.

500

2nd Period: What part of Ms. Garr's class is your favorite?

4th Period: What is the number 1 way to upset Ms. Garr?

*answers may vary*

Taking while Ms. Garr is talking/being extremely rude and disrespectful