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WorksheetsScience Review for midterms
Total questions: 46
Worksheet time: 27mins
Choose all that properties apply for liquids.
No definite shape
No definite volume
Lowest energy particles
Vaporization and condensation
Which law uses temperature and volume on the graph?
(a)
Lowest energy particles
Solid
Liquid
Gas
Plasma
When a new substance is formed with different properties than the original substance it is called a (blank) change.
Property
Phyiscal
Chemical
Phase
Where is a proton located in an atom?
(a)
Which family has the most possible number of electrons in their valence shell?
Transition metals
Noble Gases
Alkali metals
Halogens
Which elements are poor conductors of heat?
Metalloids
Halogens
Metals
Nonmetals
How many electrons does an atom need to have to reach stability?
None
8
7
1
Matter cannot be created nor destroyed it can only be changed from one form to another. What law states this?
Isaac Newton's law
The Matter Law
Law of Conservation of Matter
Law of Conservation of Energy
Heat ALWAYS moves from
(a)
Both fission and fusion are forms of nuclear energy
True
False
How many neutrons does it take to initiate a fission reaction?
4
None, it takes protons
1
8
If a substance has decayed down to 12.5% of the original substance, how many Half-Lives have passed?
1/4
3
25%
4
Nuclear power plants use (blank) to create electricity
Fusion
Neutrons
Fission
Protons
If multiple atoms are being brought together what kind of reaction is occuring?
Chemical
Fusion
Nuclear
Fission
The pH scale measures the concentration of helium ions
False
True
Where would a ball have the most potential energy?
At the top of a hill
At the bottom of a hill
Going up a hill
Halfway down the hill
If something heats and cools fast what type of specific energy does the object have?
High
Even
Low
Uneven
Highest energy particles
Liquid
Plasma
Solid
Gases
Select all of the elements that are solids
Nitrogen
Aluminum
Sodium
Potassium
Mercury
A covalent bond is between two
(a)
An ionic bond is formed when a (blank) metal is attracted to a (blank) nonmetal
(Positive, Negative)
(Negative, Positive)
No shape
Gas
Solid
Liquids
A chemical equation that shows the same number of each kind of atom on both sides of the equation is said to be
even
focused
Balanced
unpredictable
At room temperature what state of matter is Nitrogen?
Plasma
Gas
Solid
Liquid
Red Litmus paper in an acid
Blue
Red
Blue Litmus paper in an acid
Red
Blue
Red Litmus paper in a base
Red
Blue
Blue Litmus paper in a base
Blue
Red
Red Litmus paper in a neutral solution
Red
Blue
Blue Litmus paper in a neutral solution
Blue
Red
H20->2NH
What is H20 in this situation?
Yeilds
Reactant
Product
Subscript
H20 -> 2NH
What is -> in this situation?
Reactant
Coefficeient
Product
Yields
H20 -> NH2
What is NH2 in this chemical equation?
Subscript
Product
Yields
Reactant
H20 -> NH2 is a...?
Element equation
Chemical equation
Product
Symbol
What are all of the ways you can increase the rate of solubility?
Break into smaller peices
Add protons
Stirring
Increase the temperature
Switch the elements
A solution that is considered "strong" has a (blank) concentration of solute to solvent
(a)
The ability of a substance to dissolve into another substance is?
Solubility
Denisty
Elements
Solute
Say your cooking something hot on the stove and you leave the spoon in the pot, and when you go to grab the spoon your hands gets burned. What form of heat is this?
Convection
Elastic
Conduction
Radiation
A student is given a red and blue liquid. The two samples of liquids are hated in identical beakers over identical Bunsen burners. The red liquid shows a dramatically faster increase in temperature. What can you inquire about the specific heat of the red liquid?
The specific heat is higher
The red beaker is neutral
The specific heat is lower
There is no specific heat
Which of the following shows an energy transformation that goes from chemical to radiant and thermal?
Fission
A car
A slingshot
A campfire
Which are forms of kinetic energy?
Thermal energy
Nuclear energy
Sound energy
Elastic energy
Mechanical energy
Energy due to the position of an object
Gravitational energy
Chemical energy
Thermal enery
Kinetic energy
Energy being stored in the nucleus of an atom
Sound energy
Mechanical energy
Chemical energy
Nuclear energy
True of False? In a solution, the solute is present in smaller amount than the solvent.
True
Flase
When an acid and a base react to form salt and water is called a (blank) reaction.
(a)
