Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5/6
100
What do you wear to protect your eyes when doing a lab?
Goggles
100
Define chemical symbol.
A notation of one or two letters representing a chemical element.
100
Define Atomic Mass.
Average mass of 1 atom of the element amu's
100
Define Valence Electrons
The outermost or highest energy electrons in the atom.
100
What is the HONC 1234 rule?
Hydrogen- 1 bond only
Oxygen- 2 bonds only
Nitrogen- 3 bonds only
Carbon- 4 bonds only
200
What is one reason why tie up your hair while doing a lab?
An example is if a lab involves a bunsen burner, your hair would be out of the way and wouldn't have a chance of catching on fire.
200
What is the Chemical Symbol for Iron?
Fe
200
What is the atomic mass of Oxygen.
15.9994
200
What is one way to figure out the number of Valence Electrons of an Element just by looking at the periodic table.
By looking at the group number the element is. That is the number of valence electrons it has.
200
How does nonmetal atoms follow the Octet Rule?
They combine so each has a total of 8 valence electrons by sharing.
300
What is the equation to find the density of an object.
p=density
m=mass
v= volume
300
What is the Law of Conservation of Mass?
Matter cannot be created, nor destroyed, only changed in form.
300
What would be the Isotopic Symbol of Lithium
Lithium-7
300
How many shells does the Element Germanium, GE, have?
4 shells
300
What would an Ester smell like?
Sweet
400
Name 5 physical properties of Matter.
-color
-odor
-flexibility
-temp
-mass
-volume
400
In the Chemical Formula H₂SO₄ what elements are in it, and how many of them?
Hydrogen- 2
Sulfur- 1
Oxygen- 4
400
What do you do to calculate the weighted average of an isotope?
Multiply the mass of an isotope with the percent abundance.
400
How do you make Na+1 and Cl-2 follow the rule of zero charge.
You multiply 2 for the Na+1 to change it to Na+2 to make it equal to zero.
400
What is the functional group of an Ester?
O=C-O-C
500
A 10 cm silver-colored rod has a mass(g) of 35.6 and a volume (mL) of 13.2. What is the density of the object.
2.7 cm3
500
What is the chemical formula for Sodium Nitrate?
NaNO3
500
What is the average atomic mass of copper?
63.546 u
500
Does Na2Cl3 follow the rule of zero charge?
No because a Positive 2 plus a negative 3 equals -1 not 0.
500
What is the difference between an Ionic Bond or Covalent Bond?
Covalent shares, Ionic transfers