Science final S2

Room temp

Room temp

20C 70F

Body temp

37C 98.6F

H20 freezes

0C 32F

H20 boils

100C 212F

Does the amount of chemical affect its FP?

False it does not affect its FP

Do most liquids have different BP?

true they have different BP

is Boling Point a physical property?

true it is a physical property

Is density a physical property?

true density is a physical property

Is FP a physical property?

true FP is a physical property

The density of H20 is 1.0g/cc

True H20’s density is 1.0

Most chemicals have different FP

True different FP

Bases turn Red Litmus paper______

Blue

Acids turn Blue Litmus paper______

Red

Ph scale

Below 7= Acid

Exactly 7= Neutral

Above 7= Base

Ph paper turns Red/Orange in

Acids

Ph paper turns green to dark blue in

Bases

Ph paper turns light green in

Neutral

When acids and Bases are in Neutral they form

Salts and water others

Citric acid

Sour salt

Sodium Chloride

Table salt

Isopropyl alcohol

Rubbing alcohol

Glucose

Type of sugar

Methyl Alcohol

Burner fuel

Ethyl Alcohol

Drinking Alcohol

Rock Candy

Sugar Crystals

solid dissolves better in

Hot water

Gas dissolves better in

Cold water

Sitting helps solid

Dissolve

one solid dissolves worse as the water gets

Warmer

Chemical properties-

Properties that cause/result in chemical changes. Ex: flammability

Physical Properties

Properties where matter doesn’t change when it is Measured. Ex: density

Cu

Copper

Na

Sodium

W

Tungsten

pH 7

Neutral

pH 11

A base

ph 4

An acid

Ag

Silver

Au

Gold

Fe

Iron

.0032g/cc

A gas density

11.3g/cc

Solids density

0.8g/cc

A liquid density

Mg

Magnesium

Zn

Zinc

Sn

Tin

Measured in grams

Mass

Measured in CCs

Volume of liquid

Density of H20

1.00g/cc if pure

Al

Aluminum

Control

Normal

Up arrow

Gas formed

Down arrow

New solids forms

NR

No reaction

Cents symbol

Color change

Catalyst

Speeds up reaction

Inhibitor

Slows reaction

Lab aprons found in drawer #

1

Bunsen burners found in drawer #

2

Measures exact volumes of liquids with

Graduated cylinder

Used chemicals are NOT thrown in the

Sink

Electrons have

Negative charges

Atomic # same as

Amount of protons

Atomic mass - atomic # =

Neutrons

Protons

Positive

Electrons

Negative

Boling, density, FP,

Physical properties

Co2 turns limewater

Cloudy

Air is mostly

Nitrogen

H2 is an

Explosive