In this equation, the total mass of the reactants is

equal to the total mass of the products

greater than the total mass of the products

In this reaction, the total mass of CaCO₃

equals the mass of CaO plus the mass of CO₂

is less than the mass of CaO plus the mass of CO₂

is greater than the mass of CaO plus the mass of CO₂

equals the mass of CaO minus the mass of CO₂

Identify the number of atoms of each element that comprises the compound below. C₆H₁₂O₆ C has ___ atoms H has ___ atoms O has ___ atoms

C has 6 atoms, H has 12 atoms, O has 6 atoms.

C has 12 atoms, H has 6 atoms, O has 6 atoms.

C has 6 atoms, H has 6 atoms, O has 12 atoms.

C has 12 atoms, H has 12 atoms, O has 6 atoms.

Balance the following equation by adding the appropriate coefficient in the appropriate blanks. If there is no coefficient needed, put 1 to indicate there is only 1 molecule of that substance. ___ CO + ___ NO → ___ N₂ + ___ CO₂

_2_ CO + _2_ NO → _1_ N₂ + _2_ CO₂

_3_ CO + _2_ NO → _2_ N₂ + _1_ CO₂

_2_ CO + _2_ NO → _2_ N₂ + _2_ CO₂

_1_ CO + _1_ NO → ___ N₂ + _1_ CO₂

Which of the following shows an exothermic reaction?

2H₂O + energy → 2H₂ + O₂

6CO₂ + 6H₂O + energy → C₆H₁₂O₆ + 6O₂

Tori dissolved two solids (Solid A and Solid B) into separate beakers, forming two clear liquids. Then, she mixed those two clear liquids together. She found that a yellow solid was formed (Solid P) as shown in the video above. She recorded color, solubility, and density of the solids before and after mixing in Table 1. Look for a pattern in the data table to write a scientific explanation stating whether the yellow solid (Solid P) formed from Solid A and B was a chemical reaction.

Yes, because a new substance with different densities and solubility.

No, because the solids just mixed physically without any change in properties.

Yes, because the density of the resulting solid is higher than the original solids.

No, because the color change is not significant.

A student has a mixture of sugar and water. What is the best method for the student to use to separate the sugar from the water?

pouring off the water from the mixture

How does the model show that the mass is conserved during the reaction?

The model shows mass conservation by balancing the number of atoms on both sides of the equation.

The model shows mass conservation by changing the mass of reactants and products.

The model shows mass conservation by increasing the mass of products.

The model shows mass conservation by decreasing the mass of reactants.

Student 1 claims that whenever the color of a substance changes, a chemical change has occurred. Student 2 claims that food coloring can change the color of a substance without causing a chemical change. To test their claims, the students add red food coloring to a glass of water. The students observe that the clear water turns a light pink color. Their teacher then runs a test to show that the pink solution contains both water molecules and food-coloring molecules. Based on these findings, which student is correct?

Student 2, because no new substance was formed when there was a color change

Student 1, because the food-coloring molecules were found in the pink solution

Student 1, because the state of matter changed when the food coloring was added

Student 2, because the red food coloring caused the water to change to a pink color

An experiment was conducted to observe the effects of acid rain on building materials such as limestone, often used for statues and monuments. Three pieces of limestone were carved with the same pattern and placed in tubes A, B, and C. Tube A contains water only. Tube B contains water and carbon dioxide from the student blowing into the water through a straw. Tube C contains vinegar (to simulate acid rain) Based on the results of the experiment, what effect can acid rain have on statues and monuments?

B) Acid rain can chemically weather a statue or monument

A) Acid rain can physically weather a statue or monument

C) Acid rain makes monuments invisible

D) Acid rain has no effect on statues or monuments

A mountain showed the following change in profile over millions of years. What happened to most of the material removed from the mountain?

The material weathered to form new sediments.

The material was absorbed by plant roots.

The material disintegrated from exposure to sunlight.

The material was destroyed by chemical reactions.

Advance Unit 3 Review

Quiz

•

Science

•

6th Grade

•

Practice Problem

•

Medium

•

NGSS

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

+7

Standards-aligned

Morgan Tully

Used 7+ times

FREE Resource

30 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Why are these changes classified as chemical changes?

A. New substances formed

B. Materials take different shapes

C. Temperature affects the objects

D. Some energy is absorbed

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

When baking soda reacts with vinegar, bubbles form and the container feels cold. This is an example of:

A. Exothermic reaction - energy is released.

B. Endothermic reaction - energy is absorbed from the surroundings.

C. Neither endothermic nor exothermic - no energy transfer occurs.

D. The coldness is due to the vinegar, not the reaction itself.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

1

2

3

4

Tags

NGSS.MS-PS1-1

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The formation of an ionic bond involves the

transfer of electrons.

sharing of neutrons.

transfer of neutrons.

sharing of protons.

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The formation of a covalent bond involves the

transfer of electrons.

sharing of electrons.

transfer of neutrons.

sharing of protons.

Tags

NGSS.HS-PS1-1

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which type of matter can be separated by physical means?

atom

element

compound

mixture

7.

MATCH QUESTION

2 mins • 1 pt

The chart below lists samples of three materials. Classify each sample in the chart as an element, a compound, or a mixture by selecting the correct classification from the drop down menu.

compound

hydrogen chemically combined with oxygen

Element

Noble Gas

Mixture

Salt dissolved in water

Tags

NGSS.MS-PS1-2

Create a free account and access millions of resources

Create resources

Host any resource

Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever

or continue with

Microsoft

Apple

Others

Already have an account?

Similar Resources on Wayground

30 questions

Hidden Figures Movie Quiz

Quiz

•

6th - 8th Grade

25 questions

ข้อสอบ เรื่อง ร่างกายมนุษย์

Quiz

•

6th - 8th Grade

25 questions

IPA Perubahan Benda dan Perubahan wujud Benda

Quiz

•

6th Grade

25 questions

Soal Ujian Tengah Semester

Quiz

•

5th Grade - University

25 questions

Exploración del Universo

Quiz

•

6th Grade

25 questions

Latihan Soal IPAS and Mathematics

Quiz

•

6th Grade

25 questions

Rangka Manusia

Quiz

•

6th - 8th Grade

25 questions

Rocks and Minerals 2019

Quiz

•

6th Grade

Popular Resources on Wayground

25 questions

Multiplication Facts

Quiz

•

5th Grade

15 questions

4:3 Model Multiplication of Decimals by Whole Numbers

Quiz

•

5th Grade

10 questions

The Best Christmas Pageant Ever Chapters 1 & 2

Quiz

•

4th Grade

12 questions

Unit 4 Review Day

Quiz

•

3rd Grade

20 questions

Christmas Trivia

Quiz

•

6th - 8th Grade

18 questions

Kids Christmas Trivia

Quiz

•

KG - 5th Grade

14 questions

Christmas Trivia

Quiz

•

5th Grade

15 questions

Solving Equations with Variables on Both Sides Review

Quiz

•

8th Grade

Discover more resources for Science

20 questions

Convection, Conduction, and Radiation

Quiz

•

6th - 8th Grade

10 questions

Exploring Heat Transfer: Conduction, Convection, and Radiation

Interactive video

•

6th - 8th Grade

22 questions

Water Cycle

Quiz

•

6th Grade

10 questions

Exploring the Energy Cycle: Photosynthesis and Cellular Respiration

Interactive video

•

6th - 10th Grade

9 questions

Earth's Systems

Quiz

•

6th Grade

20 questions

Kinetic and Potential Energy

Quiz

•

6th Grade

11 questions

Force and Motion

Lesson

•

6th - 8th Grade

23 questions

Water Cycle

Quiz

•

5th - 6th Grade

Advance Unit 3 Review

30 questions

Why are these changes classified as chemical changes?

When baking soda reacts with vinegar, bubbles form and the container feels cold. This is an example of:

The formation of an ionic bond involves the

The formation of a covalent bond involves the

Which type of matter can be separated by physical means?

The chart below lists samples of three materials. Classify each sample in the chart as an element, a compound, or a mixture by selecting the correct classification from the drop down menu.

In this equation, the total mass of the reactants is

The diagram below represents two atoms in a molecule of oxygen that combine chemically with one atom of carbon to form a carbon dioxide molecule. Carbon dioxide is an example of:

Which property of water allows it to dissolve many different substances?

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science