Biology Middle School

1. The minerals that make up rocks give them their unique properties. Based on Nguyen's results, do you think that any of the three rocks have the exact same mineral makeup, or are they three different types of rock?

Explain your answer.

2. Mark and Amanda conduct the same investigation as Nguyen, but they use four rocks. They test the same three rocks as Nguyen but add one more rock that has the same color and density as limestone. However, the rock doesn't produce bubbles when acid is added to it. Explain how the mineral composition of this rock compares with that of limestone.

3. A group of scientists comes across a rock that they can’t identify. They believe it’s made up of a certain type of mineral. Explain how the techniques used in Nguyen's experiment can help scientists identify the mineral that the rock contains.

1. The Minerals That Make Up Rocks Give Them Their Unique Properties. Based On Nguyen's Results, Do You

Answers

Answer 1

Based on Nguyen's experiment, it is improbable that the three rocks have the same not organic makeup cause the acid test created different results.

What was the result?

Rock 1 presented bubbles, indicating the closeness of calcite, while rock 2 and 3 did not. This desires that the three rocks are different types accompanying varying, not organic compositions.

The addition of a fourth rock that is to say similar in color and bulk to limestone but does not produce bubbles when acid is additional suggests that it has a various mineral arrangement from limestone.

Techniques secondhand in Nguyen's experiment, such as the critical test, streak test, and analysis of bulk and color, can help chemists identify the not organic composition of a rock and decide its type.

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Answer 2
1. Based on Nguyen's results, it is unlikely that any of the three rocks have the exact same mineral makeup. This is because each rock produced a unique combination of reactions to the tests, indicating that they contain different minerals. For example, rock 1 produced a reaction to the acid test, indicating that it contains calcite, while rock 2 produced no reaction to the acid test, indicating that it does not contain calcite. This suggests that rock 1 and rock 2 have different mineral compositions.

2. The rock that has the same color and density as limestone but does not produce bubbles when acid is added to it is likely not made up of the same mineral as limestone. Limestone is primarily composed of calcium carbonate, which reacts with acid to produce carbon dioxide gas. The fact that the fourth rock did not produce bubbles when acid was added to it suggests that it does not contain calcium carbonate. This could mean that it is made up of a different mineral or a different form of calcium carbonate that does not react with acid.

3. The techniques used in Nguyen's experiment can help scientists identify the mineral that the rock contains by providing clues about its physical and chemical properties. For example, the color, texture, and density of the rock can provide information about the types of minerals it may contain. The acid test can help identify minerals that react with acid, such as calcite, while the magnet test can help identify minerals that are magnetic, such as magnetite. By using a combination of these tests, scientists can narrow down the possible minerals that the rock contains and make an educated guess about its identity. However, additional tests, such as X-ray diffraction or spectroscopy, may be needed to confirm the mineral composition of the rock.

Related Questions

Nguyen tests the chemical composition of the rocks by adding three drops of a strong acid to each rock. He takes a photograph of each rock as the acid is added, and records his data in a table.

Does the acid behave the same way for each rock?

Answers

The acid does not behave the same way for each rock.

Why does different rocks react to an acid in different ways?

Because of their various compositions, different rocks respond to acids in different ways. While some minerals in some rocks are more resistant to acid than others, acid can more readily dissolve some minerals in other rocks.

For instance, while granite is composed of a variety of minerals, some of which are more acid-resistant than others, limestone is primarily composed of calcium carbonate, which reacts strongly with acid.

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No, the acid does not behave the same way for each rock. Each rock produces a unique reaction to the acid test, indicating that they contain different minerals. For example, rock 1 produces a reaction to the acid test, indicating that it contains calcite, while rock 2 produces no reaction to the acid test, indicating that it does not contain calcite. This suggests that the acid reacts differently to each rock based on their mineral composition.

Nguyen uses a graduated cylinder to find the volume of each rock. Determine the initial volume of water in the graduated cylinder. Then determine the final volume in the graduated cylinder for rocks X, Y, and Z.

Fill in the data table, and calculate the volume of each rock.

Answers

Answer: The initial water was 30ml so what you do is subtract 30 from the amount of the other beakers to get the volume of the rock.

Explanation:

X- 38ml-30ml= 8

Y- 35ml-30ml=5

z- 40ml-30ml=10

Answer:

X: 38ml - 30ml = 8

Y: 35ml - 30ml = 5

Z: 40ml - 30ml = 10

Explanation:

The original amount of water was 30ml. Therefore, you should subtract 30 from the amount of the beakers Rock X, Y, and Z. Then you will get the volume of the rock.

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