Chemistry Then & Now
The percent of people in Canada who live on farms
2.5%
Monomers
Hazardous Household Product Symbols
In automotive repair, chemical reactions are involved in (3)
Paints, fillers and cleaners
Two synthetic chemicals that reduce the amount of work that farmers have to do
Pesticides and herbicides
Polymer used to make milk jugs
Polyethylene
Three conditions needed for yeast to thrive
Food, warmth and moisture
Workplace that involves ink, toners and whiteout
Office
Substance used to make soap 100 years ago
Beef fat
Type of polymer that does not absorb water and is a poor conductor
Polystyrene
Type of cake that relies on vinegar and baking soda to rise
Red Velvet
Before shampoo, to make their hair shine people would add either ______ or ________
Vinegar; lemon juice
Four natural fibres used to make clothing
Cotton, flax, wool and silk
Polyethylene monomers consist of ___ carbon atoms and ___ hydrogen atoms
2 carbon atoms and 4 hydrogen atoms
HHPS symbol: Cross bones in a diamond shape
Warning poison
A substance that has a pH of 7.6 is a(n) ________
The first synthetic fibre, and what it was made of (3)
Nylon; coal, water and air
Several metals mixed together to look like one metal
Alloys
Yeast converts its food into (2)
Carbon dioxide and alcohol
WHMIS symbol that has a flame with a circle in the middle
Oxidation