Useful Chemistry
The type of chemical used specifically for killing plants
What is a herbicide?
The substances used at the beginning of a reaction
What is reactants?
When a chemical is represented by symbols and numbers, it is in this representation.
What is a chemical formula?
The reaction that produces CO, C, CO2, H2O, and energy.
This dinosaur is easily identified by its club-like tail and bony body armor
What is an Ankylosaurus?
Examples of this compound are Nylon, Polyester, and Kevlar
Synthetic fibres
A substance can be classified as this when its pH is above 7.
What is a base?
although two or more ___________ are needed for a simple composition reaction, only one product results.
What is elements?
The substances that are necessary for keeping the Earth at a livable temperature.
Greenhouse gases.
Three things found on a WHMIS label
How to store a dangerous chemical
How to handle a dangerous chemical
How to dispose of a dangerous chemical
The elements that form the alloy brass
The type of change (chemical or physical) that occurs when a paper towel absorbs water.
What is physical change?
The mass of the reactants in a chemical reaction is equal to 10 g. What would the mass of the products be?
10 g
Two chemicals that are associated with acid deposition
NOx and SO2
An octopus has this many hearts.
What is three?
The product of a base when it reacts with fatty acids
A cold pack (one that uses chemicals to become cold, not ice) uses which specific kind of reaction to become cold?
Endothermic reaction
If you were to collect the gas produced by a burning piece of wood, it would contain ________.
CO2
corrosion or rusting.
The first human to step on the Moon in 1969
Who is Neil Armstrong?
When used in a workplace, table salt should have what?
What is the main difference between making flatbread and a regular loaf of bread on a chemical level?
The amount of yeast -> yeast forms CO2 gas -> causes bread to rise (more airy and fluffy)
- Flatbread uses less yeast, creates less CO2, so it doesn't rise as much.
- A loaf of bread uses more yeast, creates more CO2, so it rises more.
___ C2H4 + __O2 --> __CO2 + __H2O
Balance this equation
1 C2H4 + 3 O2 --> 2 CO2 + 2 H2O
What global issues does driving a car contribute to
acid deposition
greenhouse gasses
global warming
This character can manipulate magnetic fields and often acts as an antagonist to the X-Men.
Who is Magneto?