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Classifications of properties of matter
Ionic Compounds
Molecular compounds
Balancing chemical equations
Acids and basis
100
Particles are sometimes moving. True or False.
False.
100
Ca+2 + O-2 ---> CaO. True or False
True.
100
A sticky bond is formde whn electrons are shared between two atoms. True or False.
False
100
Chemical equations are used to represent chemical reactions. True or False?
True.
100
When acids are added to bases they react to produce salt water. True or False?
False.
200
Mitunes contain ______.
More than one kind of particle.
200
Protons contain what charge?
Posative.
200
Penta is the prefix for what number?
Five.
200
Is this balanced? Fe + O2 ---> FeO3.
No
200
What ion is relesaed by bases when dissolbed in water?
OH-
300
What is an element and name 1.
An element is a pure substancethat cannot be broken down further. an example is gold.
300
Wrte the formula for the following ionic compound. Sodium Chorlide.
Na+1 + Cl = NaCl
300
Ballance this chemical equation by adding co-efficients. __O2 + __ Al ---> __Al2O3
3O2 + 4Al ---> 2Al2O3
300
Define bases.
Bases are ionic compoudns that have similar properties when dissolved in water.
400
What is a pure subtance.
A pure substanceonly contais one type of particle. an example of a pure subtance is water.
400
Where on the atom is the electrons located?
The electrons are located on the energy levels surrounding the nucleus.
400
Name 3 ways equations can be written.
Wird equations, skelton equations, balanced equations
400
Define acids.
Acds are a group of molecular compounds that have similar properties when dissolved in water.