crying/first kinda quiz of grade 9

Question 1

What does WHMIS stand for

Answer 1

Workplace Harzardous Material Information System

Question 2

what does HHPS stand for

Answer 2

Household Hazardous Products symbol

Question 3

Explosibe ball lookin symbol means…??

Answer 3

Explosive; container can explode if punctured or heated, will cause serious injuries, especially to eye

Question 4

Skull + Crossbones symbol meaaaans….??

Answer 4

Poisonous and any form of that chemical getting into your body could harm you greatly or even kill you

Question 5

Boney lookin hand

Answer 5

Corrosive; can burn skin or eyes

Question 6

Fireirieieie

Answer 6

Flammable; this product can easily catch on fire if exposed to heat or sparks

Question 7

Triangle vs octogon?

Answer 7

Triagngle means container is dangerous, octogojn means the products inside said container are dangerous.

Question 8

Indications of chemical change?

Answer 8

Heat being produced, bubbling (not near heat source), colour changes/change of state (not always a sign of chemical change), tiny solid pices are formed.

Question 9

Matter is…?

Answer 9

Matter is everything except energy

Question 10

Qualitive properties?

Answer 10

feel/textire, taste, smell, colour

Question 11

Quantitive propeeirtes

Answer 11

Freezing point, boliling point, density. (Aka, theres just a numbver value.)

Question 12

Physical vs chemical change thing

Answer 12

Physical is describing its qualitives and quantitives properties, Chemical is describing how one substance reacts with another substance.

Question 13

PARTICLE THEORYYYY

Answer 13

all material is made up of matter, particles are always moviing, particles are held together by bonds, particles of any substance are identitycal

Question 14

Sooooo how do u find density :3

Answer 14

D = M/V

Question 15

how to find mass

Answer 15

M = D x V

Question 16

okayayay how do u find Volume

Answer 16

V = M/D

Question 17

okay what if u have cm3 and cm3 on the same thing will it stay the same for like thr amswer or naahh

Answer 17

naahhhh they cancel eachother out okai

Question 18

QUICKKKK name me the different kinds of mixtures or lmk gets cancelled!

Answer 18

OH GOD, Mechanical, solution, colloid, and suspension!

Question 19

Name me some pure substances or murder drones gets forgotten completely

Answer 19

ATOMS AND COMPOUNDS :((
(oexegym, sodium, chloride, hydrogen, yk yk)

Question 20

Describe me what a solution or im killing Tang

Answer 20

oky so a solution is a typa mixture where you cant tell apart the two or more substances in that mixture. btw mechnical is the opposite of that.

Question 21

Mehchmincal mixtureeee?

Answer 21

Mixture where you can properly distinguish the two or more substances in that mixture (ex// pineapplepizza)

Question 22

why is water freakin weird

Answer 22

when water in state of solid, it doesnt sink, unlike most substances. instead it floats. thats why ice floats! it less dense in the solid state than in the liquid state.

Question 23

why si watr freeizung not a chemical change

Answer 23

despite the fact it changed states its not a chemical change becayse its still technically H20 its just in another state. Nothing reacted with the water to make it a whole new thing.