Where are valence electrons located in an atom?

Between the nucleus and first shell

What is the primary characteristic of metalloids?

They have properties of both metals and nonmetals

They are all gases at room temperature

How does temperature affect particle motion in matter?

Higher temperature increases particle motion

Higher temperature decreases particle motion

Temperature has no effect on particle motion

In the periodic table, what do periods represent?

Number of energy levels in the electron cloud

Groups of similar chemical properties

What determines the oxidation number of transition metals?

Their Roman numeral designation

What is the Law of Conservation of Mass about?

Matter cannot be created or destroyed

Energy cannot be created or destroyed

Mass increases during reactions

Mass decreases during reactions

What is the primary characteristic of a supersaturated solution?

Contains more solute than it can hold at a given temperature

Contains less solute than it can hold

Contains exactly the maximum amount of solute

According to the Kinetic Molecular Theory, which statement is FALSE?

Particles never collide with each other

All matter is made of particles

Particles are in constant random motion

Temperature affects particle motion

What is the defining characteristic of Group 18 elements?

Chemically stable and nonreactive

In a saturated solution, what happens if you add more solute?

It changes the solvent's properties

What is the key difference between physical and chemical properties?

Physical properties don't change chemical identity

Physical properties can only be measured

Chemical properties always involve temperature changes

Chemical properties are always visible

What type of energy change occurs in an endothermic reaction?

Energy is absorbed from surroundings

Which is a characteristic of covalent compounds?

Conducts electricity when dissolved

Which of the following best describes the process of dissociation?

The separation of ionic compounds into ions in water

When particles gain or lose thermal energy

The process of a solid becoming a liquid

When particles move from high to low concentration

According to the Kinetic Molecular Theory, which statement is true?

Particles are in constant random motion

All matter is made of large particles

Particles collide with the particles that are furthest from them

Particles collide with the walls of the neighboring container

What is the characteristic of a supersaturated solution?

It contains more solute than it can hold at a given temperature

It can dissolve more solute at a given temperature

It is at maximum capacity for solute

It has equal parts of solute and solvent

Which is a characteristic of ionic compounds?

Cannot conduct electricity when dissolved

Physical Science-Benchmark #2

Authored by Patrick King

Science

12th Grade

OK covered

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which scientist first proposed the nuclear model of the atom through the gold foil experiment?

J.J. Thomson

Ernest Rutherford

Niels Bohr

John Dalton

Tags

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OK.PS.PS1.2

OK.PS.PS1.5

OK.PS.PS1.7

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the definition of density?

The resistance of a fluid to flow

The measure of how well a solute dissolves

The mass per unit volume of a material

The temperature at which a solid becomes a liquid

Tags

OK.PS.PS1.1

OK.PS.PS1.2

OK.PS.PS1.5

OK.PS.PS1.7

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a supersaturated solution, what occurs?

The solution can dissolve more solute

The solution is at maximum capacity

The solution contains less solute than possible

The solution contains more solute than it should be able to hold

Tags

OK.PS.PS1.1

OK.PS.PS1.2

OK.PS.PS1.5

OK.PS.PS1.7

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which state of matter has particles with the highest kinetic energy?

Solid

Liquid

Gas

Plasma

Tags

OK.PS.PS1.1

OK.PS.PS1.2

OK.PS.PS1.5

OK.PS.PS1.7

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of force holds an atom together?

Repulsive force between electrons

Attractive force between the nucleus and electron cloud

Repulsive force between protons

Attractive force between neutrons

Tags

OK.PS.PS1.1

OK.PS.PS1.2

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a single replacement reaction, what occurs?

Two compounds exchange ions

One element replaces another in a compound

Three elements combine

A compound breaks down

Tags

PS3.1

PS3.2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which is NOT a sign of a chemical reaction?

Release of light

Change in mass

Formation of a precipitate

Temperature change

Tags

PS3.1

PS3.2

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Physical Science-Benchmark #2

Which scientist first proposed the nuclear model of the atom through the gold foil experiment?

What is the definition of density?

In a supersaturated solution, what occurs?

Which state of matter has particles with the highest kinetic energy?

What type of force holds an atom together?

In a single replacement reaction, what occurs?

Which is NOT a sign of a chemical reaction?

How does increasing temperature affect reaction rate?

What is the prefix for 8 atoms in a covalent compound name?

In a combustion reaction, what is always a reactant?

Access all questions and much more by creating a free account

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