Module 1

Question 1

Define Matter

Answer 1

Has mass, occupy space & physical

Question 2

What are the two ways matter is described?

Answer 2

1. Physical
2. Composition

Question 3

Examples of physical state

Answer 3

Liquid, gas, solid

Question 4

Examples of composition

Answer 4

Elements, mixture, compound

Question 5

Define law of constant composition

Answer 5

Compounds are made of element in definite proportions

Question 6

Define pure substances

Answer 6

Having fixed compositions

Question 7

Define heterogenous mixture

Answer 7

Mixtures that don’t have the same composition through out(choc- chip cookie)

Question 8

Define homogeneous mixture

Answer 8

Mixtures that are uniform throughout (salt water)

Question 9

Define intensive properties (give examples

Answer 9

Do not depend on amount of sample(boiling point, color, temp.,luster, hardness )

Question 10

Define extensive properties , give examples

Answer 10

Does depend on quantity of the sample (volume, mass , size, weight, length)

Question 11

Define kinetic energy

Answer 11

Energy in motion

Question 12

Define potential energy

Answer 12

Energy associated with/position or composition

Question 13

Define thermal energy

Answer 13

Energy associated with/temperature of an object

Question 14

Define law of conservation of energy

Answer 14

Energy is neither created nor destroyed

Question 15

Define heterogeneous

Answer 15

Mixtures that don’t have the same composition throughout the appearances

Question 16

Define Homeogenous mixture

Answer 16

Mixtures that are uniform throughout the appearance

Question 17

Define Homeogenous mixture

Answer 17

Mixtures that are uniform throughout the appearance

Question 18

Are homeogenous and heterogeneous, mixtures or pure substances ?

Answer 18

Mixtures

Question 19

Are elements and compounds , pure substances or mixtures

Answer 19

Pure substances

Question 20

Define intensive properties

Answer 20

These properties don’t depend on amount of sample. They can be throught of boiling point, color, temperature, luster and hardness , can somewhat though as quality

Question 21

Define extensive properties

Answer 21

They have volume, mass, size, weight length, these do depend on quantity

Question 22

What is the formula for density

Answer 22

M/V =d

Question 23

What are the significant figures rules?

Answer 23

1. All non zero digit are significant
2. Leading zeros aren’t significant(0.023=2sf)
3. Interior zeros are SF (2.002=4sf)
4. Trailing zeros are significant after! Decimal point(200.00=5sf)
   5.ambigous SF when a zero are at end of a number before a decimal point (200= ambigous or 1 minimum sf )
5. Exact # = unlimited sig fig

Question 24

What’s the rule for significant figure for multiplication and dividision

Answer 24

Fewest sig fig as possible while incorporating the sig fig rules

Question 25

What’s the formula of kelvin from Celsius?

Answer 25

K=C+273.15

Question 26

What’s the formula for F from Celsius?

Question 27

How do you perform cubic equations in conversions?

Question 28

Define the law of multiple proportions

Answer 28

What two elements form two different compounds the masses of element B that combine with 1g of element A can be expressed as a ratio of small whole #

Question 29

Describe groups In a periodic table

Question 30

What are periods in a periodic table?

Answer 30

The rows

Question 31

What is the symbol for atomic # and symbol

Answer 31

Z
# of protons

Question 32

What is the symbol for mass # and definition

Answer 32

A
Total # of protons & neutrons

Question 33

Define isotopes

Answer 33

Atoms have identical atomic % but different number of neutrons

Question 34

Where are the alkali metals?

Answer 34

Group 1

Question 35

Where are the alkaline earth metals?

Answer 35

Group 2