Matter is defined as:
a.Something that has a mass
b. Something that has energy
c.Something that can be touched
d. Something that is a solid
What is A
100
SI unit for length
What is meter
100
The elements in the periodic table are arranged in order of ...?
What is increasing atomic / proton number
100
Ionic bonds are between...
What is a metal and a nonmental
100
Balance the equation:
H2 + O2 --> H2O
What is 2H2 + O2 --> 2H2O
200
Matter can be classified as:
a.A pure substance
b. A mixture
c. Both A and B
d. A chemical reaction
What is C
200
Convert 5 cm3 to mL
What is 1 cm3 = 1mL so it's 5 mL
200
Which is the most important characteristic in determining an element’s chemical properties?
What is number of valence electrons.
200
This type of compound has high melting/boiling points and is conductive in water.
What is ionic compounds.
200
2Ca + O2 --> 2CaO Is an example of which type of reaction?
What is combination
300
When two or more substances are mixed and evenly distributed, and a sample from any one part of the mixture is chemically identical to a sample from any other part, the mixture is said to be
What is homogeneous
300
Convert 35000 to scientific notation
What is 3.5 x 10^(4)
300
How is the atomic mass of any element determined?
What is: it is the averages of all of the isotopes of the element.
300
The trend in ionization energy is...
What is increasing from L --> R, Decreasing downwards
300
Will a reaction occur when...
Li (s) + Al2(SO4)3 --> ?
If so, what is the balanced equation?
What is Yes, lithium is more active than aluminum.
6Li + Al2(SO4)3 --> 3Li2SO4 + 2Al
400
Orange juice with pulp would be considered what type of mixture?
What is heterogeneous
400
Convert 15 g/mL to mg/L in scientific notation.
What is 1.5 x 10 ^7 mg/L
400
What is the electron configuration for Co?
What is 1s2 2s2 2p6 3s2 4p6 5s2 3d6
400
which compound is ionic?
NaNO3
COH
P2O5
B2(SO4)3
What is Na NO3
400
Predict the products of and balance the equation and what type of reaction is this?
C6H8 + O2 -->
What is
combustion
C6H8 + 8O2 --> 6CO2 + 4H2O
500
Pure substances....
a. have a uniform composition and cannot be separated by physical methods
b. are always elements
c. are solids in most cases
d. have a uniform composition that can be separated by physical methods
What is A
500
Explain how to experimentally determine the volume of an irregular object.
What is measure a known amount in a graduated cylinder. Place the object in the cylinder and record the volume of water that was displaced.
500
The following electron configuration could be for what two atoms? 1s2 2s2 2p6
What is Ne or F-
500
What is the shape of CCl4
Explain why H2O is bent
What is tetrahedral
Lone pair on central atom.
500
Predict the products. Will there be a precipitate?
What is
Mg(OH)2 (aq) + H2SO4(aq) --> MgSO4 (s) + 2H2O (l)
Yes, water!