Chemistry Spring Final 2017 Study Guide
same, reactants, products
A chemical equation is balanced when the ______ number of each kind of atom appears in the ___________ and in the _________.
combustion
A hydrocarbon reacting with oxygen is called a _______________ reaction.
O and 0.5
A nonpolar covalent bond is most likely to form between two elements that have a difference in electronegativity values between
Below
An element in the activity series can replace any element _______ it on the list.
precipitate
An insoluble solid produced by a chemical reaction in solution is called a _______________
2C2H6+7O2-----> 4CO2+ 6H2O
Balance the following equation: __C2H6 + __O2 ---->___CO2 + ___H2O
2FeS2+5Cl2------>2FeCl3+2S2Cl2
Balance the following equation: ___FeS2 + ___Cl2 ----> ___FeCl3 + ___S2Cl2
CO2 + H2O
CH4 + O2 --->
Mg3(PO4)2
Consider an aqueous solution of magnesium nitrate added to an aqueous solution of potassium phosphate. What is the formula of the solid formed in the reaction?
absorbed
For an electron in an atom to change from the ground state to an excited state, energy must be _______________
No reaction
For the following reaction, predict if the reaction will occur, if the reaction occurs, predict the products: Au + CaCl2 --->
Not balanced
is the following equation balanced? 2H2 + O2 --> H2O
36.3g of H3PO4
How many grams of H3PO4 are produced when produced when 10 grams of water react with excess of P4O10? Balanced chemical reaction is: P4O10 + 6H2O -----> 4H3PO4
300 g of C6H12O6
How many grams of glucose, C6H12O6, can be burned biologically when 10 mol of oxygen is available? Balanced chemical reaction is: C6H12O6 + 6O2 ---> 6CO2 + 6H2O
6.98 mol
How many mole of silver are in 4.2x10^24 atoms?
1 mol of Al
How many moles of aluminum are needed to react completely with 1.5 mol of FeO? Balanced chemical reaction is: 2Al + 3FeO ----> 3Fe + Al2O3
4 electrons
In a double bond, two atoms share a total of
noble gasses
In the compound, NaCl, the sodium ion loses one electron and the fluorine atom gains one electron to form ions that have electron configurations similar to
Synthesis
In what kind of reaction do 2 or more substances combine to form a new compound?
Decomposition
In what kind of reaction does a single compound produce 2 or more simpler substances?
Soluble
Is the following compound soluble in water? MnSO4
Soluble
Is the following compound soluble in water? Na3PO4
Mg2+
Magnesium, when following the octet rule, would form what ion?
electrons that are free to flow from one atom to atom
Metals conduct electricity because they have
Copper(111) dichromate
Name the following compound; Cu2(Cr2O7)3
Vanadium(V1) Sulfide
Name the following compound; VS3
O2-
Oxygen, when following the octet rule, would form what ion?
BaSO4 + NaCl
Predict the products for the following if the reaction occurs, if the reaction does not occur, write "no reaction." BaCl2 + Na2SO4 -->
Activity Series
The _______________ ________ is used to predict whether a certain chemical reaction will occur.
covalent bond
The chemical bond formed when 2 atoms share one or more pairs of electrons is a
...One shared bond, each atom has 3 lone pairs and a complete octet.
The correct lewis structure for a molecule of F2 is
...A triple bond between the 2 carbons, a bond between a carbon and a hydrogen, a bond between a carbon and a chlorine, and chlorine has 3 lone pairs of electrons.
The correct lewis structure for a molecule of the compound: HC2Cl is
...3 single valence electrons
The correct lewis structure for the boron atom is
whole-number ratio
The equation is balanced by adjusting coefficents to the smallest ________- _________ ___________.
Single Displacement Reaction
The following reaction: 2KI + Cl2 --> 2KCl + I2 is a _________ ______________ ______________
coefficients
To balance an equation, it is necessary to adjust the _______________
add one electron to the total number
To draw the lewis structure for a polyatomic ion like (NO3)-, would have to
2,1,2,1
What coefficients balance the following equation? Al + Fe2O3 --> Fe + Al2O3
violet
What color of light has the shortest wavelength / greatest energy in the visible?
diphosphorous pentasulfide
What is the correct name for P2S5?
BeCO3
What is the formula for beryllium carbonate?
Mg3N2
What is the formula for magnesium nitrite?
28g
What is the mass in grams of 2 moles of nitrogen?
344 g/mol
What is the molar mass of Co(PO4)3
trisulfur octabromide
What is the name for S3Br8
Lithium Chloride
What is the name of the ionic compound formed from lithium and chlorine?
metals and nonmetals
What type of elements make up an ionic compound?
covalent
When 2 nonmetals react, they form a ______________ compound.
Line-emission spectra
When the light from excited atoms of an element is passed through a prism, the distinct colored lines produced are called
Ca(NO3)2
Write the formula for the following pair of ions: Ca2+, NO3-
