Chapter 1

Diatomic Molecules

100

What is a diatomic element?

Diatomic elements are pure elements that only exist in the form of a molecule of two atoms bonded together.

200

True or false: N₂ is a diatomic element

True!

300

True or false: Mg is a diatomic element because you can find it as MgO

False. 

400

What is Dr. Riley's mnemonic to remember the 7 diatomic elements?

Have No Fear Of Ice Cold Beer:)

500

List all of the 7 diatomic elements

H₂ N₂ F₂ O₂ I₂ Cl₂ Br₂

Definitions

100

What is an atom?

The smallest particle of an element. 

200

What three things make up an atom?

Protons, neutrons, and electrons. 

300

What is a molecule made up of?

Two or more atoms bonded together.

400

What is the series of steps and procedures that we use to do scientific research called?

The scientific method. 

500

Describe the difference between qualitative data and quantitative data. 

qualitative data is descriptive data. It has no numerical properties. (Yellow substance)

quantitative data is strictly numerical. It contains numbers and units. (5 ounces)

Sig Figs

100

What are certain digits and uncertain digits?

Certain digits are the numbers in your measurement that you know are accurate. 

Uncertain digits are the numbers you can not guarantee are accurate in your measurement. 

200

How many sig figs are present in 350?

two! the 0 in 350 is a trailing zero. 

300

Write 0.0006067 with only the significant figures. 

6.067x10^-4

400

Answer the following question applying sig fig and decimal place rules. 

1.4450 + 1.2 - 0.232 =?

2.4 

500

Answer the following questions applying sig fig and decimal place rules. 

670 x 4.5033 =?

=3.0x10³

Measurements

100

What are the fundamental SI units for mass, length, and temperatire?

Respectively: kilogram, meter, and kelvin. 

200

How many nanometers equal 1 meter?

10⁹nm=1m

300

convert 7.5 meters to millimeters

7.5m x 10³mm = 7,500mm

400

Convert 75 degrees Celsius to Kelvin

75 C + 273.15 = 348.15 K

500

You have 2 kilograms of sour patch watermelons. How many micrograms of sour patch watermelons is that? 

Feel free to use google, but do not look up a conversion calculator!

 

2kg x 1,000g= 2,000g

2,000g x 10⁶ug= 2x10⁹ug

Random Facts From Google

100

What is the national animal of Scotland?

Unicorns!

200

The "Hollywood" sign in California used to have another word following it up until 1949. What was that word?

Land. The sign said "Hollywood Land"

300

What animal can sleep for up to three years at a time?

Snails!

400

There is only one state name in the US that is a single syllable. What is it?

Maine

500

What species of saltwater fish are always born as males?

Clownfish!