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3 years ago

The liter (L) is a measurement of which of the following quantities?

Chemistry

2 answers:

zhenek [66]3 years ago

5 0

Is volume one of your answers?

storchak [24]3 years ago

3 0

volume is the correct answer

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Answer:

c. because it lacks oxygen which might support life of the bacteria

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2 years ago

Answer the following question using the reaction: AB ---> A+B

Vadim26 [7]

Answer:

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3 years ago

Which statement about the temperatures of phase changes and electrostatic forces holding the molecules is correct?(1 point)

lubasha [3.4K]

The temperature at which phase changes occur is highly dependent on the electrostatic forces between the molecules in the substance.

The forces that hold molecules together are called intermolecular forces. These intermolecular forces affect the temperature at which phase changes occur. The statement about phase changes and electrostatic forces that is correct is that; "the temperatures at which a substance changes phases indicate the relative strength of the forces between molecules in the substance."

There are three states of matter, solid liquid and gas. The order of intermolecular forces in all the states of matter are not the same. The order of strongest collective electrostatic forces to weakest collective electrostatic forces is; solid, liquid, gas.

When water boils, the forces between water molecules break, and the bonds between the atoms in water are unchanged.

When a sample of calcium carbonate is cooled, the forces strengthen, and the molecule structure becomes more rigid.

If the boiling point of acetone is lower than the boiling point of ethanol, then, the intermolecular forces in ethanol are stronger than the intermolecular forces in acetone.

Learn more about phase changes: brainly.com/question/671212

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3 years ago

How to make neon color using color pencils?

Georgia [21]

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3 years ago

For the following reaction, 6.80 grams of hydrochloric acid are mixed with excess iron. The reaction yields 8.51 grams of iron(I

Orlov [11]

Answer:

A. 11.83g

B. 71.9%

Explanation:

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

Fe + 2HCl —> FeCl2 + H2

A. Step 1

Determination of the mass of HCl that reacted and the mass of FeCl2 produced from the balanced equation. This is illustrated below:

Molar Mass of HCl = 1 + 35.5 = 36.5g/mol

Mass of HCl from the balanced equation = 2 x 36.5 = 73g

Molar Mass of FeCl2 = 56 + (35.5x2) = 56 + 71 = 127g

Summary:

From the balanced equation above,

73g of HCl produced 127g of FeCl2.

A. Step 2:

Determination of the theoretical yield of FeCl2.

The theoretical yield of FeCl2 can be obtained as follow:

Fe + 2HCl —> FeCl2 + H2

From the balanced equation above,

73g of HCl produced 127g of FeCl2.

Therefore, 6.80g of HCl will produce = (6.80 x 127)/73 = 11.83g of FeCl2.

Therefore, the theoretical yield of FeCl2 is 11.83g

B. Determination of the percentage yield.

Actual yield = 8.51g

Theoretical yield = 11.83g

Percentage yield =?

Percentage yield = Actual yield/Theoretical yield x100

Percentage yield = 8.51/11.83 x100

Percentage yield = 71.9%

Therefore, the percentage yield of FeCl2 is 71.9%

5 0

3 years ago

Read 2 more answers