Download Chemistry – Midterm Part 2 Material Unit Review packet 2014

Chemistry – Midterm Part 2 Material Unit
Review packet 2014-2015
Resources A
1.
Label the following as chemical or physical change:
Grass growing___________
Evaporating water______
Dissolving sugar in water_______
Na in water appears to dissolve and forms NaOH____
2.
An element is found which is a good conductor of electricity, is ductile, brittle and does not
react with acid. Is this new element a metal, nonmetal or metalloid?
3.
The current periodic table is arranged according to increasing______.
4. Elements in the same vertical column are in the same________________ and have similar
properties due to similar_____________________.
5. An element is discovered which bonds to oxygen in a 1:1 ratio. Where would it be placed on
the periodic table? ________________
6. Estimate the boiling point of Kr if the boiling point of argon is -186°C and xenon -112°C.
7.
Give the characteristics of each group and label the periodic table with their correct
positions:
Alkali metals
Halogens
Groups or families
alkali earth metals
transitional metals
noble gases
Periods
lanthanide and actinide metals
Resources B
1. Using the following Reaction, identify the terms and answer the following questions:
Ca(s) + 2 H2O(l)  Ca(OH)2(aq) + H2(g)
Identify:
Products
Subscript
reactants
coefficient
element
compound
chemical symbol
chemical formula
List the phase of matter for each reactant and product:
How many H atoms are in the reactants, the products?
How would you obtain, purify each product formed by this reaction. In other words, how
would you separate the products so you have each alone?
2.
How does the Law of Conservation of Matter relate to chemical equations?
3. Balance the following chemical reactions:
H2O + NO 
NH3
+
O2
AgNO3 + BaCl2  Ba(NO3)2 + AgCl
Use the Metal Reactivity Series for questions 4 and 5:
4.
Is silver the best metal for the statue of liberty? Justify your answer:
5.
Predict whether the following reactions will occur:
6.
CuNO3
+ Al 
NaNO3
+ Zn -->
Name the layers of the Earth. Which layer provides most of the resources people use?
7. Is it more important to recycle renewable or nonrenewable resources? Why?
8. Identify which of the following reactions is a redox reaction. In each redox reaction, identify:
Substance being oxidized
Reducing agent
2NaNO3 + BaI2 
Zn + 2AgNO3 
9.
substance being reduced
oxidizing agent
label charges on each element in the redox reaction
Ba(NO3)2 + 2NaI
Zn(NO3)2
+ 2Ag
Which ions in problem 8 are polyatomic ions?