Chem Review

Question 1

What is an atomic element

Answer 1

Atomic elements are the chemical species that can exist as independent atoms ie. C, Xe

Question 2

What is a molecular element

Answer 2

Molecular elements are the chemical species that has at least two atoms of the same chemical element bonded to each other via chemical bonding ie. Br

Question 3

What is a molecular compound

Answer 3

A molecular compound consists of molecules whose formula represents the actual number of atoms bonded together in the molecule NO2

Question 4

What is an ionic compound

Answer 4

Ionic compounds are neutral compounds made up of positively charged ions called cations and negatively charged ions called anions ie. NaNo3

Question 5

What is the term for 1

Answer 5

Mono

Question 6

What is the term for 2

Answer 6

Di

Question 7

What is the term for 3

Answer 7

Tri

Question 8

What is the term for 4

Answer 8

Tetra

Question 9

What is the term for 5

Answer 9

Penta

Question 10

What is the term for 6

Answer 10

Hexa

Question 11

What is the term for 7

Answer 11

Hepta

Question 12

What is the term for 8

Answer 12

Octa

Question 13

What is the term for 10

Answer 13

Deca

Question 14

What is a systematic error and can it be fixed

Answer 14

Inherent error ie. poor instrument. Can be identified and eliminate

Question 15

What is a random error

Answer 15

Limitations in the skill of the experimenter

Question 16

What is accuracy

Answer 16

How close the experimental measurements are to the correct answer

Question 17

What is precision

Answer 17

Refers to the degree of reproducibility of a measured quantity