labs from class
whmis
RATES OF REACTIONS
Chemical Stuff
Physical and Chemical Changes
100
a piece of equipment to measure liquids
What is graduated cylinder?
100
should be worn in all chemical labs
What are goggles?
100
A piece of chalk crushed into powder increases the__________
What is surface area
100
HCl stands for
what is hydrochloric acid?
100
3 clues to a chemical change
What are Colour change Gas bubbles Heat made Light made Odour change Precipitate formed?
200
gas caused a glowing splint to relit
What is oxygen?
200
should any broken glasswhere go
In the box by the door?
200
This chemical speeds up reactions without getting used up
What is a Catalyst
200
calcium carbonate is commonly called
What is chalk?
200
When ice turns to liquid it is called ______________
melting
300
the colour sodium hydroxide changed grape juice
What is green?
300
acid goes in your eyes how long whould you wash them out?
What is 15 - 20 minutes ?
300
By adding more solute to a solvent you are changing the ______________________
What is concentration
300
Sugar, salt, kool aid are all called ____________ when added to water
What are solutes
300
Iron oxide is created with steel reacts with oxygen. It is commonly called _____________
what is rust
400
the name of the funny shaped glass that you have used in the past lab
What is Erlenmeyer flask?
400
The large T stands for this
what is toxic?
400
In our labs, a good indicator of the rate of reaction is by the amount of _________ produced
. bubbles and gasses
400
This clear liquid chemical produces oxgyen gas when a light shines on it
What is hydrogen peroxide
400
Water disappearing for a glass over time
What is evaporation
500
This chemical turns blue/black on bread and potatoes
What is iodine?
500
This symbol is found on a tank of oxgyen
What is compressed gas?
500
Preservatives slow chemical reactions in food. This is called an ___________
what is an inhibitor
500
this gas puts flames out
What is carbon dioxide gas ?
500
Grinding, cutting, chopping and tearin are all _________________ changes
What is physical
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