Gen Chem

Question 1

M to NM

Answer 1

1m=1e+9nm

Question 2

s to ms

Answer 2

1s = 1,000 ms

Question 3

L to mls

Answer 3

1L = 1,000 mls

Question 4

How to remember Metric Mnuemonic

Answer 4

Kittens Hate Dogs But Do Chase Mice.| Kilo, Hecta, Deka, (Base Unit), Deci, Centi, Milli

Question 5

Avogadro’s #

Answer 5

6.022 x 10²³

Question 6

electronegativity difference less than 0.5

Answer 6

Non Polar covalent Bond.

Question 7

electronegativity difference less 0.6-1.7

Answer 7

Polar Covalent bond.

Question 8

electronegativity difference greater than 1.7

Answer 8

Ionic Bond
Usually a metal and non-Metal,

Question 9

What is A? ^AC

Answer 9

Total number of nucleons (Mass #)| Nucleons (Protons + Neutrons)

Question 10

What is B? _BC

Answer 10

Atomic #// Number of protons

Question 11

order to convert M per S to nm per ms

Answer 11

multiply the meters by the ⁹ notation for nm and have the nm/1,000ms = 1s, now divide for nm per ms.| don’t multiply becuase it is a fraciton/ ratio.

Question 12

Where should the meniscus be read?

Answer 12

At the bottom to the correct Sig Fig.

Question 13

What is an Isotope?

Answer 13

An isotope is an atom with the same number number of protons and electrons but a different number of neutrons, this is is how atomic mass can is estimated on the periodic table.

Question 14

What are main group elements?

Answer 14

groups 1,2, & 13-18

Question 15

What is Isomer?

Answer 15

Isomers have the same chemical compound but a different structure.

Question 16

What kind of bond forms between two metals?

Answer 16

Metallic bond, usually less than 1 for electonegativity.

Question 17

What are the 6 strong Acids?

Answer 17

Sulfuric Acid (H₂SO₄), Hydroiogic Acid (HI), Hydrobromic Acid (HBr), Nitric Acid (HNO₃), Hydrochloric adic (HCl), Perchloric Acid (HClO₄)

Question 18

What are the 6 strong Bases?

Answer 18

Lithium Hydroxide (LiOH), Sodium Hydroxide (NaOH), Potassium Hydroxide (KOH), Calcium Hydroxide (Ca(OH)₂), Strontium Hydroxide Sr(OH)₂), Barium Hydroxide (Ba(OH)₂)

Question 19

Mnemonic for 6 strong acids?

Answer 19

SO I Brought NO Clean Clothes.

Question 20

What are the 7 diatomic elements?

Answer 20

Hydrogen, Nitrogen, Oxygen, Flourine, Chlorine, Bromine, Iodine.

Question 21

What are the 10 families of the periodic table?

Answer 21

• Alkali Metals
• Alkaline Earth Metals
• Transition metals
• Basic/ post transition metals
• Semi/ Metalliods
• Halogens
• Noble Gases
• Non-Metals
• Lanthanide
• Actinide

Question 22

What is the first Group mostly composed of?

Answer 22

Alkali Metals

Question 23

What is the Second group composed of?

Answer 23

Alkaline Earth metals.

Question 24

What is Group 17 (7A) composed of?

Answer 24

Halogens

Question 25

What is Group 18 (8A) composed of?

Answer 25

Noble Gases.

Question 26

What are groups 3-12 composed of?

Answer 26

Transition metals.

Question 27

What are the charges of the noble gases?

Answer 27

0

Question 28

What are main group elements?

Answer 28

groups 1,2, & 13-18

Question 29

What is a covalent bond?

Answer 29

A bond in which the electrons are shared, usually betwen two non metals.

Two types: Polar and Non-polar (Based on electronegativity difference.)

Question 30

What is an ionic bond?

Answer 30

When one element loses electrons and another gains them. Made between metals and non-metals

has a higher electronegativity difference than covalent bonds.

Question 31

What is a cation?

Answer 31

The positively charged end of an ion.

When postive they have lost electrons.

Question 32

What is an anion?

Answer 32

The negatively charged end of an ion.

When negative they have gained electrons.