CASPP Prep

According to this "Key" that models atoms and molecules, the molecules are

• Fe and CuSO₄

• FeSO₄ and CuSO₄

• Fe and Cu

• Cu and CuSO₄

Tags

NGSS.MS-PS1-1

According to this "Key" that models atoms and molecules, an example of an atom is

• Fe

• FeSO₄

• CuSO₄

Tags

NGSS.MS-PS1-1

Leah combined Fe and CuSO₄ and measured the masses before and after a reaction. What is the total mass of the reactants?

• 96 grams

• 25 grams

• 71 grams

• 192 grams

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Leah combined Fe and CuSO₄ and measured the masses before and after a reaction. What is TRUE about the total mass of the reactants and the total mass of the products?

• They are the same (96 grams)

• They are different

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Leah conducts an investigation by mixing Fe with CuSO₄ and makes a model to help explain why the total mass did not change. Leah's model can also be used to show that a chemical reaction occurred because the products

• are the same size as the reactants

• have the same composition as the reactants

• are at different states of matter compared to the reactants

• have differently arranged atoms compared to the reactants

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A chemist claimed that in Experiment 2, the pH of the sample solution was greater at a value of 0.2 mL of titrant added than at a value of 1.8 mL of titrant added. Do the results of Experiment 2 support this claim?

• No; at a value of 0.2 mL of titrant added, the sample solution was yellow, and at a value of 1.8 mL of titrant added, the sample solution was blue.

• No; at a value of 0.2 mL of titrant added, the sample solution was blue, and at a value of 1.8 mL of titrant added, the sample solution was yellow.

• Yes; at a value of 0.2 mL of titrant added, the sample solution was yellow, and at a value of 1.8 mL of titrant added, the sample solution was blue.

• Yes; at a value of 0.2 mL of titrant added, the sample solution was blue, and at a value of 1.8 mL of titrant added, the sample solution was yellow.

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Tags

NGSS.MS-PS1-2

The passage compares the retina in the most complex invertebrate eye to the:

• darkened chamber of a camera.

• diaphragm of a camera.

• light-sensitive film in a camera.

• lens of a camera.

• iris of a camera.

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Tags

NGSS.MS-LS4-2

Make the best choice for the highlighted portion.

• that abnormally whales behave when approached by human observers.

• abnormally that whales behave when approached by human observers.

• that whales behave abnormally when approached by human observers.

• that whales abnormaller behave when approached by human observers.

• that whales behave abnormallest when approached by human observers.

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What is the chemical formula for water?

Tags

NGSS.MS-PS1-1

Which of the following is a renewable energy source?

• Coal

• Natural Gas

• Solar Energy

• Nuclear Energy