When a physical change occurs in matter, what remains unchanged?

The chemical composition of the substance

Which of the following is an example of a physical change?

A chemical reaction that releases energy

What explains the structure, properties, and transformations of matter at the atomic level?

Attraction and repulsion among electric charges

The law of conservation of matter

The breaking and making of chemical bonds

The process of elements combining to produce compounds

Which of the following is NOT a way that elements combine to produce compounds?

By separating by physical means

What do compounds consist of?

Two or more elements that are chemically combined in a fixed ratio

A single element that is chemically combined in a fixed ratio

Two or more elements that are physically mixed

A variable number of atoms of each element that form a physical mixture

What is a chemical formula?

A mathematical model that displays the number of atoms of each element that form a chemical compound

A theory that explains the properties of chemical compounds

A mathematical model that displays the number of molecules of each element in a compound

A representation of the chemical reaction process

How can compounds be classified?

Ionic or covalent based on the type of chemical bonds they contain

What happens when a metallic element reacts with a non-metallic element?

Their atoms gain and lose electrons, respectively, forming ionic bonds

They dissolve into each other, forming a solution

Their atoms gain and lose protons, respectively, forming ionic bonds

They share neutrons, forming covalent (molecular) bonds

What does a chemical equation represent?

The changes that take place in a chemical reaction

The physical state of the reactants and products

The changes that take place in a physical reaction

The conservation of energy in a reaction

According to the law of conservation of matter, what happens when substances within a closed system are changed?

The total mass remains the same

The total mass is converted into energy

What do all atoms of an element have in common according to the periodic table model?

They all have the same number of protons.

They all have the same number of neutrons.

They all have different atomic masses.

They all have different numbers of electrons.

What is the significance of the atomic number of an element?

It determines the element's position on the periodic table.

It represents the number of neutrons in the atom.

It indicates the atomic mass of the element.

It signifies the number of electrons in the outermost energy level.

What is atomic mass equivalent to?

The number of protons and neutrons in the atom of an element.

The number of protons in the atom of an element.

The number of electrons in the atom of an element.

The number of isotopes of the element.

Atoms of an element with differing numbers of neutrons.

Atoms of an element with differing numbers of protons.

Atoms of an element with differing atomic numbers.

Atoms of an element with differing numbers of electrons.

How can you classify an element as metal, nonmetal, or metalloid?

By its position in the periodic table.

By the number of protons it contains.

By the number of electrons in its outermost energy level.

What does the atomic mass presented in the periodic table represent?

The average mass of all isotopes of an element.

The exact mass of the most abundant isotope.

The mass of the heaviest isotope of an element.

The mass of a single atom of the most common isotope.

Why do elements in the same column of the periodic table have similar properties?

They contain the same number of electrons in their outer energy level (valence).

They have the same number of protons.

They have the same atomic mass.

Where are metals located on the periodic table?

On the left side of the periodic table

To the right of the stair-step line

As one reads from left to right across the periodic table, how do the properties of elements change?

They have fewer metallic properties.

They have more metallic properties.

Where are nonmetals located on the periodic table?

To the right of the stair-step line

On the left side of the periodic table

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Physical Science SOL Review 1

Quiz

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Chemistry

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8th Grade

•

Practice Problem

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Hard

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NGSS

MS-PS1-1, MS-PS1-2, HS-PS1-1

Standards-aligned

Kevin Paitsel

Used 14+ times

FREE Resource

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the kinetic molecular theory, what is true about atoms and molecules?

They are static and do not move

They are perpetually in motion and have kinetic energy

They only move when subjected to chemical reactions

They have potential energy but no kinetic energy

Tags

NGSS.HS-PS3-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to atoms during a chemical reaction?

Atoms are destroyed and created

Atoms change their elemental identity

Atoms stay the same but rearrange to form new molecules or compounds

Atoms lose their kinetic energy and freeze in place

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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What is the central idea about atoms?

What does the atomic theory encapsulate?

What does matter consist of?

What can the organization of the periodic table predict about main group elements?

What are valence electrons responsible for?

According to the kinetic molecular theory, what is true about atoms and molecules?

What happens to atoms during a chemical reaction?

Which of the following is NOT a physical property of matter?

Matter can exist in different states. Which of the following is NOT considered a standard physical state of matter?

When a physical change occurs in matter, what remains unchanged?

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