Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
100

What is the difference between a homogenous mixture and a heterogenous mixture?

Bonus Points:

Give an example of each.

A homogenous mixture is where substances are distributed uniformly.

A heterogenous mixture is where substances are not distributed uniformly.

100

What subatomic particles have about the same mass?

protons and neutrons

100

True or false:

Photons are emitted when electrons move from higher to lower energy levels.

True

100

What is the chemical formula for lead (II) fluoride?

PbF2

100

How many pi bonds are there in ozone (O3)?

1

200

How many significant figures does the value 0.0006700 have?

4

200

What is an isotope?

Isotopes are atoms of an element containing the same number of protons but different numbers of neutrons.

200

How many unpaired electrons will there be in a neutral, ground state potassium atom?

1

200

Which of these molecules contains a double bond?

A. N2

B. S2

C. CCl4

B. S2

200

Is NH3 polar or nonpolar?

Polar

300

What is 550nm in meters using exponential notation?

5.5 x 10-7

300

What is the number of protons, neutrons, and electrons for copper - 66?

Protons: 29

Neutrons: 37

Electrons: 29

300

What is the energy emitted in Joules of an Nd laser with a wavelength of 1064 nm?

1.87x10-25 Joules

300

Which is true about the relationship between bond length and bond strength?

A. they are unrelated

B. directly proportional

C. inversely proportional


C. Inversely proportional

300

How many sigma bonds are there in CH2O?

3

400

What is potential energy and what is kinetic energy?

Potential energy is the energy stored in an object because of it's composition or position.

Kinetic energy is the energy used in motion.

400

Which of the following is a transition metal?

A. Rubidium (Rb)

B. Copper (Cu)

C. Aluminum (Al)

B. Copper (Cu)

400

In the diagram of an atom, what is an orbital?

An orbital is a three dimensional area where an electron is most likely to be found.

400

What is the correct formula for ammonium sulfate?

(NH4)2(SO4)

400

What is the molecular geometry for BF3?

Trigonal Planar

500

What is the kinetic energy of an oil tanker with a mass of 3 x 107 traveling at 9 m/s (20 miles per hour)?

Formula:

KE = 1/2mu2

m: mass, u: velocity

1,215,000,000 Joules

500

One isotope makes up 97% of all calcium atoms. Which one is it?

A. Ca - 40

B. Ca - 42

C. Ca - 43

D. Ca - 44


A. Ca - 40

500

What is the condensed electron configuration of Si?

[Ne] 3s2 3p2

500

What is the name for HIO3?

Iodic acid

500

Draw the Lewis Structure for (ClO4)-

Look at Chapter 5 Quiz question 1.

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