Image A & B show 2 different substances. Which of the following statements accurately describe the two substances? Choose two answers.

Images A and B are both molecules containing 2 atoms of oxygen.

Images A is an element and Image B is a compound.

Images A and B are both composed of carbon and oxygen.

Images A and B are both compounds containing only 2 atoms of oxygen.

Images A is a compound and Image B is an element.

A glass of lemonade with ice sits outside in the Texas summer heat. Before long the ice begins to melt. Which of the following has occurred? Select two answers.

The ice has melted, which is a physical change.

The lemonade has been diluted by the water from the melting ice.

The ice has melted, which is a chemical change.

The water from the melting ice has been diluted by the lemonade.

The water from the melting ice has not diluted by the lemonade.

The table summarizes data taken from a laboratory experiment where students measured the dissolving rate of 3 dissolvable vitamin C tablets. The tablets were either whole, cut into quarters, or completely crushed before starting the experiment. Which statement best describes the concentration of the solutions made from the dissolved vitamin C tablets?

All three solutions have the same concentrations because the amounts of water and solute were the same.

The solution with the whole tablet has the highest concentration because the tablet was in one piece.

The solution with the crushed tablet has the lower concentration because the tablet was in so many pieces.

All three solutions had a concentration of zero because the tablets completely dissolved in the water.

In an experiment, students were given the task of dissolving NaCl in water to create aqueous solutions. Based on each student's experimenta; setup, which student completed the task fastest?

Student 3 because the tablets had the highest surface area and temperature.

Student 1 because the tablets had the lowest surface area.

Student 2 because the tablets had the highest surface area.

Student 4 because the tablets had the lowest surface area and temperature.

A student wants to test how temperature affects the speed a solute dissolves in an aqueous solution. The student plans to conduct three trials of the same solute and solvent. The table shows the three trials the student will conduct. What will likely happen during the student’s experiment?

As the temperature increases, the solute will dissolve faster into the solution.

As the temperature increases, the solute will dissolve slower into the solution.

As the temperature increases, the solute will not dissolve into the solution.

As the time to disslove increases, the speed at which the solute dissolves will not change.

The table summarizes data taken from a laboratory experiment where students measured the dissolving rate of 3 dissolvable vitamin C tablets. The tablets were either whole, cut into quarters, or completely crushed before starting the experiment. Which two experiments would examine ways to change the rate of dissolution?

Use crushed, quartered, and whole tablets with varying sizes.

Use full tablets in each trial but use a different temperature of water for each container.

Use crushed, quartered, and whole tablet, and measure the amount of water evaporated following the heating.

Use full tablets in each trial but increase the amount of water used to dilute the Vitamin C tablet.

Use full tablets in each trial and stir each tablet a different number of times when dissolving.

The table summarizes data taken from a laboratory experiment where students measured the dissolving rate of 3 dissolvable vitamin C tablets. The tablets were either whole, cut into quarters, or completely crushed before starting the experiment. In this experiment, the____________ tablet dissolved the fastest because it had the ____________ . Which terms best complete the sentence?

Quartered; Lowest concentration

An antacid is a medication that is used to help calm heartburn. Some antacid tablets contain two compounds that dissolve when the tablet is placed in water. When these compounds dissolve into solution, they react with each other and form two different compounds, one of which is carbon dioxide (CO2) gas. The person then drinks the dissolved solution. This type of antacid tablet is a _________ that dissolves into the _________, water. This is a _________ change. Once in solution, the _________ react to form a gas which is evidence of a ________ change. Which terms best complete the sentences?

solute; solvent; physical; molecules; chemical

solvent; solute; physical; molecules; chemical

solute; molecules; chemical; solvents; physical

solvent; solute; chemical; molecules; physical

Matter & Solutions Review

Authored by Sarah Hogan

Science

7th Grade

NGSS covered

Used 37+ times

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25 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Select the Element:

A molecule composed of more than one type of atom

A molecule of one type of atom

A molecule with 2 phosphorus atoms and 5 oxygen atoms

A molecule of carbon dioxide

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Select the compound:

A molecule of 2 oxygen atoms

A molecule composed of one type of atom

An atom of Krypton

A molecule with 2 phosphorus atoms and 5 oxygen atoms

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The chemical formulas of three substances are recorded.
C₃H₈O
C₄H₁₀O
C₅H₁₂O
These compounds contain the same...

molecules

chemical formulas

chemical symbols

elements

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The chemical formulas of three substances are recorded.
C₃H₈O
C₄H₁₀O
C₅H₁₂O
You know each formula has the same elements because each has the same...

molecules

chemical symbols

chemical formulas

elements

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The chemical formulas of three substances are recorded.
C₃H₈O
C₄H₁₀O
C₅H₁₂O
They are different compounds because they have different...

molecules

chemical formulas

chemical symbols

elements

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Glucose is a simple sugar with the molecular formula C₆H₁₂O_6.It contains elements that can be found on the Periodic Table.
How many atoms in all are in a molecule of glucose?

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Glucose is a simple sugar with the molecular formula C₆H₁₂O_6.It contains elements that can be found on the Periodic Table.
How many atoms of carbon are in a molecule of glucose?

Tags

NGSS.MS-PS1-1

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Matter & Solutions Review

Select the Element:

Select the compound:

The chemical formulas of three substances are recorded.
C₃H₈O
C₄H₁₀O
C₅H₁₂O
These compounds contain the same...

The chemical formulas of three substances are recorded.
C₃H₈O
C₄H₁₀O
C₅H₁₂O
You know each formula has the same elements because each has the same...

The chemical formulas of three substances are recorded.
C₃H₈O
C₄H₁₀O
C₅H₁₂O
They are different compounds because they have different...

Glucose is a simple sugar with the molecular formula C₆H₁₂O_6.It contains elements that can be found on the Periodic Table.
How many atoms in all are in a molecule of glucose?

Glucose is a simple sugar with the molecular formula C₆H₁₂O_6.It contains elements that can be found on the Periodic Table.
How many atoms of carbon are in a molecule of glucose?

Glucose is a simple sugar with the molecular formula C₆H₁₂O_6.It contains elements that can be found on the Periodic Table.
How many atoms of hydrogen are in a molecule of glucose?

Glucose is a simple sugar with the molecular formula C₆H₁₂O_6.It contains elements that can be found on the Periodic Table.
How many atoms of oxygen are in a molecule of glucose?

Image A & B show 2 different substances. Which of the following statements accurately describe the two substances? Choose two answers.

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Matter & Solutions Review

Select the Element:

Select the compound:

The chemical formulas of three substances are recorded.C3H8OC4H10OC5H12OThese compounds contain the same...

The chemical formulas of three substances are recorded.C3H8OC4H10OC5H12OYou know each formula has the same elements because each has the same...

The chemical formulas of three substances are recorded.C3H8OC4H10OC5H12OThey are different compounds because they have different...

Glucose is a simple sugar with the molecular formula C6H12O6. It contains elements that can be found on the Periodic Table.How many atoms in all are in a molecule of glucose?

Glucose is a simple sugar with the molecular formula C6H12O6. It contains elements that can be found on the Periodic Table.How many atoms of carbon are in a molecule of glucose?

Glucose is a simple sugar with the molecular formula C6H12O6. It contains elements that can be found on the Periodic Table.How many atoms of hydrogen are in a molecule of glucose?

Glucose is a simple sugar with the molecular formula C6H12O6. It contains elements that can be found on the Periodic Table.How many atoms of oxygen are in a molecule of glucose?

Image A & B show 2 different substances. Which of the following statements accurately describe the two substances? Choose two answers.

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

The chemical formulas of three substances are recorded.
C₃H₈O
C₄H₁₀O
C₅H₁₂O
These compounds contain the same...

The chemical formulas of three substances are recorded.
C₃H₈O
C₄H₁₀O
C₅H₁₂O
You know each formula has the same elements because each has the same...

The chemical formulas of three substances are recorded.
C₃H₈O
C₄H₁₀O
C₅H₁₂O
They are different compounds because they have different...

Glucose is a simple sugar with the molecular formula C₆H₁₂O_6.It contains elements that can be found on the Periodic Table.
How many atoms in all are in a molecule of glucose?

Glucose is a simple sugar with the molecular formula C₆H₁₂O_6.It contains elements that can be found on the Periodic Table.
How many atoms of carbon are in a molecule of glucose?

Glucose is a simple sugar with the molecular formula C₆H₁₂O_6.It contains elements that can be found on the Periodic Table.
How many atoms of hydrogen are in a molecule of glucose?

Glucose is a simple sugar with the molecular formula C₆H₁₂O_6.It contains elements that can be found on the Periodic Table.
How many atoms of oxygen are in a molecule of glucose?