Lab Safety
What is safety goggles?
This is the chemical symbol for helium.
What is He?
During an investigation, you observe bubbling in a test tube after mixing two substances. This is the name of the method that you would use to check for an odour.
What is the wafting method?
This is the charge of a proton
What is positive?
What is ionic?
This is the location of the fire extinguisher & blanket in our classroom.
What is at the front of the classroom by the door?
The name of the element that is represented by the symbol P.
What is phosphorus?
Which of the following is a chemical change?
a) An iron nail rusts
b) A model of a molecule is built by a group of students
c) Sugar dissolves in hot tea
d) A pencil is sharpened
e) Water evaporates from a lake
What is A)?
H2O is what type of compound:
A) ionic
B) molecular
What is B) molecular?
Phosphorus tribromide is this type of compound
What is molecular?
What is hazardous to the aquatic environment?
These are the two elementst that make up the compound CO
What are carbon and oxygen?
Which of the following is a chemical change?
a) An ice cube melts and forms a puddle of water
b) The onions in a salad are removed before the salad is eaten
c) A wooden log in a fireplace burns to ash
d) Red paint and blue paint are mixed, and a new colour forms
e) Drops of water form on the outside of a cool glass
What is C)?
This type of compound comprises of a metal (or hydrogen) transferring electrons to a non-metal
What is ionic compound?
This is the process that occurs in covalent bonds (in molecular compounds).
What is the sharing of electrons?
These are 2 pieces of safety equipment that you would use AFTER an accident occurs.
What are fire blanket, fire extinguisher, and/or eyewash station?
These are the elements that make up the compound Al2(SO4)3
What are aluminum, sulfur, and oxygen?
This is an example of a chemical change that releases energy in the form of heat and light.
What is the production of fire?
This is an example of an ionic compound
Answers may vary
These type of elements are found to the left of the periodic table (to the left of the staircase)
What are metals?
This WHMIS symbol could be used for carbon monoxide
What is acute toxicity?
A student wrote the formula CaO2 for carbon dioxide. Analyze the formula to determine the error.
The Ca stands for calcium, not carbon
Some chemicals are stored in opaque bottles. For example, hydrogen peroxide solution is stored and sold in brown plastic bottles.
Why might it be important for a chemical not to be exposed to light?
Some chemicals are heated slightly when exposed to light and may result in an undesired reaction
When C and Cl are combined, it will most likely form this type of compound
What is molecular?
What is nitrate?