Rememberrrr

Question 1

What is a chemical bond?

Answer 1

the force that holds atoms together, like super glue but a lot stronger

Question 2

Ionic Bonds are between what kinds of elements?

Answer 2

Metals(+) and (-)non metals

Question 3

Do ionic bonds share electrons between atoms?

Answer 3

No, one gains and one loses

Question 4

Covalent Bonds are between what kinds of elements?

Answer 4

Nonmetal(-) and Nonmetal (-)

Question 5

Do covalent bonds share electrons?

Answer 5

Yes covalent bonds are wise therefore share electrons, there is no loser

Question 6

What is a compound?

Answer 6

Two or more DIFFERENT atoms

Question 7

What is a molecule?

Answer 7

two or more atoms whether the same or different

Question 8

Empirical Formula = ?

Answer 8

Simplest ratio/Simplest form

Question 9

What is the empirical formula of C5 H10 O5 ?

Answer 9

CH2O

Question 10

What elements in periodic table have atoms available as two?

Answer 10

Hydrogen H, Nitrogen N, Oxygen O, Fluorine F, Chlorine Cl, Bromine Br, Iodine I
(these are all 2)

Question 11

What elements in the periodic table have atoms available as MORE than two?

Answer 11

Phosphorus 4, Silicone 8, Selenium 8

Question 12

Group 1a has what charge

Answer 12

+1

Question 13

What are the rules for writing the formula of ionic compounds?

Answer 13

1. Start w metal and end w nonmetal
2. Assign Charges (based on group) (sometimes they can have multiple and it will tell you)
3. Flip numbers and delete SIGNS (no -)
4. Simplify if possible

Question 14

Group 2a has what charge

Answer 14

+2

Question 15

Group 3a has what charge

Answer 15

+3

Question 16

Group 4a has what charge

Answer 16

dont worry about

Question 17

Group 5a has what charge

Answer 17

-3

Question 18

Group 6a has what charge

Answer 18

-2

Question 19

Group 7a has what charge

Answer 19

-1

Question 20

Write the formula between Ca & I

Answer 20

CaI2

Question 21

Write the formula between Al & O

Answer 21

Al2O3

Question 22

Write the formula between Mg & S

Answer 22

MgS

Question 23

Ionic compounds must be written in ?

Answer 23

Empirical formula

Question 24

Why do we switch charges when writing the formula of a reaction between two elements or molecules?

Answer 24

To neutralize the atom

Question 25

Name NaCl

Answer 25

Sodium Chloride

Question 26

Name Al2O3

Answer 26

Aluminum Oxide

Question 27

Write the formula of Lithium Nitride

Answer 27

Li3N

Question 28

Write the formula of Aluminum Phosphide

Answer 28

AlP

Question 29

Write the formula of Iron (III) Oxide

Answer 29

Fe2O3

Question 30

Write the formula of Tin (IV) Sulfide

Answer 30

SnS2

Question 31

Name Cu2O

Answer 31

Copper (I) Oxide

Question 32

Name Fe2O3

Answer 32

Iron (III) Oxide

Question 33

Name PbO2

Answer 33

Lead (IV) Oxide

Question 34

What elements can you have more than one variant of charge therefore cannot be directly referenced by group number in the periodic table?

Answer 34

Fe IRON
Cr CHROMIUM
Co COBALT
Cu COPPER
Sn TIN
Hg MERCURY
Pb LEAD

Question 35

Rules Of Calculating Molar Mass.
When given a molar mass problem including units only of moles and atoms, what does this include?

Answer 35

2 step conversion
mol —-> atoms
atoms ——-> mol
using 6.022 and the given ONLY

Question 36

Rules of Calculating Molar Mass.
When grams is included in a molar mass question what does this automatically mean

Answer 36

Mass of specified element must be included in analysis

Question 37

Rules of Calculating Molar Mass.
When grams and atoms are included in a molar mass questions this means to?

Answer 37

Its a 3 step question going from either
grams—–> moles ——-> atoms
atoms ——> moles ——–> grams
grams means to use ATOMIC MASS