Periodic Table
What are the horizontal rows in the periodic table called?
Periods
What is the differnce between an atom and an ion?
An atom has a net charge of 0
An ion does not have the same number of protons and electons
How does an ionic compound form? (what happends to the electrons?)
Electrons are transffered from a metal to a non metal
What do you call the comounds on the left of a chemical reaction, and the compounds on the right of a chemical reaction?
Reactants an Products
What is the molar mass of iron?
55.85 g/mol
What is the chemical symbol for Tin?
Sn
What is the term used for a negatively charged ion?
Anion
If electons are shared by different atom, what type of compound if formed?
Molecular compound
What type of chemical reaction is the following reaction?
Cu(s) + AgNO3(aq) --> Ag(s) + Cu(NO3)2(aq)
Single Replacement
If the mass of an object doubles, what happends to it's number of moles?
It also doubles
What group in the periodic table is know for being very reactive with water?
Alkili metals (group 1)
How many protons and electrons are found in an ion of nitride?
7 protons
10 electrons
What is the compound called?
C4Cl6
Tetracarbon hexachloride
Name the 5 types of chemical reactions
Formation
Decomposition
Single replacement
Double replacement
Combustion
What is the molar mass of iron (III) oxyde?
159.70 g/mol
What 2 types of elements are seperated by the staircase in the periodic table?
Metals and non-metals
Draw the bohr diagram of electrons for an oxygen atom
(Mr Roy draw on the board)
What is the chemical formula for calcium fluoride?
CaF2
What numbers banlance the following chemical reaction?
__ C2H2(g) + __ O2(g) --> __ CO2(g) + __ H2O(g)
2 5 4 2
How many moles are found in 13,4 g of water?
0.744 mol
What is spcial about the element mercury?
It is the only liquid metal
Draw the Bohr diagram for a chloride ion.
(Mr Roy will draw on the board)
What is the chemical formula for iron (III) phosphate?
FePO4
What is the balanced chemical reaction when a peice of solis aluminum, Al(s), falls into a solution of copper (II) nitrate, Cu(NO3)2(aq) ?
2 Al(s) + 3 Cu(NO3)2(aq) --> 3 Cu(s) + 2 Al(NO3)3(aq)
What is the mass of 0.0284 mol of potassium sulfate?
4.95 g