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ad-work [718]
3 years ago
14

Science questions please help.

Chemistry
1 answer:
gregori [183]3 years ago
7 0
Producerds are all green plant and bacteria and fungi
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What is the first quartile of the following data set?
Darina [25.2K]

Answer:

hdhhdhhdhgdgdvsgsvsvvsvsvsvsvs

Explanation:

hdhbdbdbdbdbdbxbxbxvxbxbbxbxvxvxvxv

6 0
3 years ago
Which of the following describes an energy transformation from chemical to electrical to light energy?
Law Incorporation [45]
The answer is B. a flashlight uses a battery to operate.

The battery represents the chemical energy. This is converted into electricity, which is converted into light energy.

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2 years ago
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What monomer is polymerized to make acrylate? What is the chemical name for this popular polymer?
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3 years ago
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Which structural zones exist within the core compositional zone?
Art [367]

The Earth's structural zones (S-Zones) are the lithosphere, asthenosphere, mesosphere, inner core, and outer core.

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6 0
3 years ago
What mass of iron is needed to react with sulfur in order to produce 96 grams of
fiasKO [112]

Answer:

51.69 g of Fe

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

2Fe + 3S —> Fe₂S₃

Next, we shall determine the mass of Fe that reacted and the mass of Fe₂S₃ produced from the balanced equation. This can be obtained as follow:

Molar mass of Fe = 56 g/mol

Mass of Fe from the balanced equation = 2 × 56 = 112 g

Molar mass of Fe₂S₃ = (2×56) + (3×32)

= 112 + 96

= 208 g/mol

Mass of Fe₂S₃ from the balanced equation = 1 × 208 = 208 g

SUMMARY:

From the balanced equation above,

112 g of Fe reacted to produce 208 g of Fe₂S₃.

Finally, we shall determine the mass of Fe needed to produce 96 g of Fe₂S₃. This can be obtained as follow:

From the balanced equation above,

112 g of Fe reacted to produce 208 g of Fe₂S₃.

Therefore, Xg of Fe will react to produce 96 g of Fe₂S₃ i.e

Xg of Fe = (112 × 96)/208

Xg of Fe = 51.69 g

Thus, 51.69 g of Fe is needed for the reaction.

8 0
3 years ago
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