Atomic Models, Structure and Theory
Stoichiometry
Chemical bonding, structures, and names
Periodic Table and Trends
Chemical Reactions
100
Protons have what kind of charge?
positive
100
What counting unit is used to meausre the number of partiles in a substance?
mole
100
This substance is composed of 2 or more types of particles balanced together
compound
100
What is the symbol for mercury?
Hg
100
What is the new substance formed in a reaction?
Product
200
The 3 basic compounds of an atom include what?
Protons, electrons, and neutrons
200
What is solubility?
It describes the grams of solute that dissolve in solvent
200
The combination of atoms formed in a covalent bond is called a what?
molecule
200
What is a negative ion?
anion
200
Balance this chemical reaction _P+_Cl2-->_2PCl3
2P+3Cl2-->2Pcl3
300
What 2 particles would be attracted to eachother?
Electrons and protons
300
A mole ratio always has the ratio of what units?
moles over moles
300
The electron dot structure of carbon has how many dots?
4
300
What is the chemical name for Ba3N2
Bariumnitride
300
What is a way to show changes that take place ina chemical reaction
chemical equation
400
To find the number of neutrons in a atom what do you do?
Subtract the atomic number from the mass number
400
2Na + Cl2 --> 2NaCl - If you have 4.0grams of CL2, how many grams of Na do you need?
180grams
400
THis substance can be broken down by physical means
Mixture
400
What is ionization energy?
the energy required to remove 1 electron from an atom of an element
400
I have the same number of each element on both sides of me, what am I?
a balanced equation
500
What occurs when an electron moves to a higher energy level?
The electron gains energy
500
What is the number of grams magnesium in 7.00 moles
168 grams
500
What is the formula for phosphorus tichloride?
PCl3
500
A verticle column of elements on the Periodic Table is also known as a what?
Group
500
Write the formula of the reactants and products, then balance the equation -Sodium metal reacts with chlorine gas to form sodium chlorine
3Fe+2O2-->Fe3O4
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