Why does this picture demonstrate the Law of Conservation of Mass?

the number of atoms of each element are the same on both sides

they start out separate and end up combined

it doesn't demonstrate the Law of Conservation of Mass

a change where the characteristics do not change the substance

a change where the characteristics do change the substance

a change where the chemistry changes

A chemical change is when

the chemical properties do not change

a change where the characteristics do not change the substance

An element that is typically solid, shiny, malleable, and a good conductor of heat and electricity

An element that is typically a gas or brittle solid

An element that has properties of both metals and nonmetals

A pure substance composed of different types of atoms

Which of the following describes a nonmetal?

Typically not shiny, not malleable, and poor conductors of heat and electricity

Good conductor of heat and electricity

Always a liquid at room temperature

Two students tested the physical properties of an unknown element. The chart below lists their findings.Based on the chart, which of the following is true?

The students tested a nonmetal because the physical properties describe nonmetals

The students need to conduct additional investigations to determine more physical properties before the unknown element can be classified.

The students tested a metal because the physical properties describe metals.

The students tested a metalloid because the physical properties are of both a metal and nonmetal.

The Periodic Table can be broken into three different sections. In which section would you expect to find an element that is a gray, shiny, and malleable?

An element that is a gray, shiny, and malleable, is a metal; therefore, it can be found in Section 1.

An element that is a gray, shiny, and malleable, is a metalloid; therefore, it can be found in Section 2.

An element that is a gray, shiny, and malleable, is a nonmetal; therefore, it can be found in Section 3.

An element that is a gray, shiny, and malleable, is a rare earth element; therefore, it can be found in Section 2.

What is a rare earth element?

B. One of 17 elements on the periodic table, including lanthanides, scandium, and yttrium

A. A type of rock found in the Earth's crust

C. A common metal like copper or tin

RC 1 Review

Quiz

•

Science

•

8th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-PS1-2, MS-PS1-5, MS-PS1-1

+2

Standards-aligned

MEERA KARIA

Used 3+ times

FREE Resource

45 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is true of the law of conservation of mass?

The same number and type of each atom will always be present before and after a chemical reaction takes place.

Some of the atoms present before the reaction will always be lost during a chemical reaction.

Some of the atoms will always be changed into a different type of atom by a chemical reaction.

During a chemical reaction, atoms will always be combined into much larger molecules.

Tags

NGSS.MS-PS1-5

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is the best description of the results of a chemical reaction?

The substance seems to disappear after dissolving in water.

The substance changes from liquid to solid at a low temperature.

The reaction can be reversed to get back the original substance.

A new substance with different properties is formed.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is not evidence of a chemical reaction?

gas produced

precipitate formation

color change

mass change

Tags

NGSS.MS-PS1-2

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The substances listed to the left of the arrow in a chemical reaction are called the _______________.

products

reactants

substances

materials

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How many Al atoms are in this compound? 4Al₂O₃

2

8

6

4

Tags

NGSS.MS-PS1-1

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How many F atoms are in this compound?
6MgF₂

2

6

8

12

Tags

NGSS.MS-PS1-1

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Can matter be created or destroyed?

Yes, it can be created.

Yes, it can be destroyed.

No, matter is always conserved

None of these

Tags

NGSS.MS-PS1-5

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RC 1 Review

45 questions

Which of the following is true of the law of conservation of mass?

Which of the following is the best description of the results of a chemical reaction?

Which of the following is not evidence of a chemical reaction?

The substances listed to the left of the arrow in a chemical reaction are called the _______________.

How many Al atoms are in this compound? 4Al₂O₃

How many F atoms are in this compound?
6MgF₂

Can matter be created or destroyed?

Why does this picture demonstrate the Law of Conservation of Mass?

What is the part of the chemical equation in green called?
Fe + S → FeS

What is the right part of a chemical equation called...
2H_{2 +}O₂ --> 2H₂O

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

RC 1 Review

45 questions

Which of the following is true of the law of conservation of mass?

Which of the following is the best description of the results of a chemical reaction?

Which of the following is not evidence of a chemical reaction?

The substances listed to the left of the arrow in a chemical reaction are called the _______________.

How many Al atoms are in this compound? 4Al2O3

How many F atoms are in this compound?6MgF2

Can matter be created or destroyed?

Why does this picture demonstrate the Law of Conservation of Mass?

What is the part of the chemical equation in green called?Fe + S → FeS

What is the right part of a chemical equation called...2H2 + O2 --> 2H2O

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

How many Al atoms are in this compound? 4Al₂O₃

How many F atoms are in this compound?
6MgF₂

What is the part of the chemical equation in green called?
Fe + S → FeS

What is the right part of a chemical equation called...
2H_{2 +}O₂ --> 2H₂O