Physical Science Benchmark 2 Question Preview (ID: 58463)
Review Physical Science - Bonding.
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The amount of energy needed to change a material from a solid state to a liquid state is the heat of _______.
a) Fission
b) Rendition
c) Fusion
d) Plutonic
Increasing the surface area of a solid causes the sugar to dissolve faster in water because?
a) It slows down the speed of dissolving
b) It increases the speed of dissolving
c) It doesn't make a difference in dissolving
d)
Each substance to the right of the arrow in a chemical equation is a _______.
a) Reactant
b) Coefficient
c) Product
d) Subscript
Substances that speed up chemical reactions are called _______.
a) Decomposition
b) Catalyst
c) Synthesis
d)
When objects are burned a _______ reaction has occurred.
a) Combustion
b) Chemical
c) Basic
d) Nuclear
The burning of wood in a campfire that produces heat and light would be both an ________ and an ________ reaction.
a) exergonic; exothermic
b) exergonic; endothermic
c) exergonic; endothermic
d) exergonic; exothermic
In a chemical equation the symbol that means dissolved in water is ______.
a) l
b) s
c) aq
d) g
The Law Conservation of Mass states
a) Mass is lost during combustion only
b) Mass is neither lost or created nor chemical change
c) Mass is lost during chemical reaction
d)
When sugar reacts with potassium chlorate, it releases light into the environment. This type of reaction is
a) Exothermic
b) Exergonic
c) Endergonic
d) Exerthermic
True or False, a state of matter change is a chemical reaction.
a) True
b) False
c)
d)
True or false A chemical change happens when two solutions are mixed in a beaker and it produces a solid.
a) True
b) False
c)
d)
In a reaction in which hydrogen reacts with oxygen to produce water, which substances are reactants?
a) hydrogen
b) oxygen
c) Both hydrogen and oxygen
d)
A solid produced from two liquids in a double displacement chemical reaction is called a
a) Catalyst
b) Precipitate
c) single replacement
d) Synthesis
Matter has a definite volume and a definite shape is a _______.
a) Solid
b) Liquid
c) Gas
d)
The amount of energy needed to change a material from liquid to a gas is the heat of _______.
a) Vaporization
b) Tranquility
c) Isotopic
d) Tyndall
The maximum amount of solute that can be dissolved in a given amount of solvent is its _______.
a) Mixture
b) Solubility
c) Solution
d)
The air you breathe is an example of a _______ solution.
a) Plasma
b) Heterogeneous
c) Solution
d)
True or false stirring a solution will speed up the dissolving of a solid in water.
a) True
b) False
c)
d)
_______ is another name for homogeneous mixture.
a) Solution
b) Trail mix
c) Orange juice with pulp
d) Salad Dressing
In which phase of matter or molecules of the substance farther is apart from each other?
a) Solid
b) Liquid
c) Gas
d)
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