Atoms and elements
Molecules and bonds
Reactions
Properties of matter
100
Name the three subatomic particles
Proton, neutron, electron
100
What is the difference between atoms and molecules?
molecules are made of atoms
100
identify the products and the reactant in the following equation: CH4+ 2O2 --> CO2 + 2H20
Reactants= CH4, O2 Products=CO2, H2)
100

in which state of matter are particles moving the slowest?

solid

200
Give an example of a non-metalic element
carbon, nitrogen, helium, etc
200
which type of chemical bond is formed by an attraction between oppositely charged particles
ionic bonds
200
Assumeing that mass in conserved when hydrogen peroxide decomposes, what gas is produced? 2H2O2 --> H20 +
O2
200

Which liquid is the most viscous water, oil or maple syrup?

stays the same

300
Atoms that have an unequal number of protons and electrons are called _________________ and have an electrical charge
ions
300
What type of bonds would you expect an Oxygen and two hydrogen atoms to form?
polar covalent
300
A chemical reaction between 3 grams of lemon juice and 1 gram of baking soda results in bubbling. After the bubbling has stopped there are 3.2 grams of liquid left in the beaker. How much gas was produced in this reaction?
.8 grams
300

What kind of property is the ability to conduct heat?

physical

400
An element's atomic number refers to the number of ____________ in it's nucleus
protons
400
What kind of bond would you expect two hydrogen atoms to form?
non-polar covalent bond
400
Chemical changes that involve a change in energy can produce _____________ or _____________
heat or light
400

what kind of property is solubility?

physical

500
Which subatomic particle can vary in number between atoms of the same element?
neutron
500
How many electons would you expect Lithium to get rid of in order to become a stable ion?
1
500
List two pieces of evidence that suggest a chemical reaction has occurred:
change in energy(light or temperature), produces a gas or solid, color change, etc
500

List three chemical properties of a piece of aluminum foil

Non-flammable, non-reactive with oxygen, reacts with acid

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