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4 years ago

The phase of a sample of a molecular substance at STP is not determined by its

2 answers:

5 0

Phase is not determined by the number of molecules, as a substance with any number of molecules can be either solid, liquid, or gas.
Arrangement of molecules and molecular structure matter, since solids are closely packed together, gases are not, and liquids are in between. Intermolecular forces are also stronger for solids and liquids than they are for gases.

tangare [24]4 years ago

3 0

The phase of a sample of a molecular substance at STP is not determined by its Number of molecules.

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Shale forms from tiny particles of which material?

miskamm [114]

Answer:

a. mica

Explanation:

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3 years ago

I have an experiment where I put a balloon into an ice bucket and measure its temperature but the lab says

Pavlova-9 [17]

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4 years ago

What is the difference between a measured value and an accepted value? How are these values used to determine the precision of y

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For the answer to the question above, the answer is simple and obvious. Measured value is simply the value that is measured.
<span>While, theoretical value is the value from theory or calculations.

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3 years ago

Which of these statements does not describe electricity?

Tanzania [10]

Answer:

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Explanation

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3 years ago

The following is the reaction showing the complete neutralization of calcium hydroxide (a base) with phosphoric acid:

vodka [1.7K]

9.17 milliliters (mL) of the acid are needed to completely neutralize the base in this reaction.

<h3>What is a neutralization reaction</h3>

A neutralization reaction is a reaction between an acid and a base to produce a salt and water only.

The process of reacting given volume of acids or bases to determine the concentration or volume of either the acid or base required for neutralization is known as titration in volumetric analysis.

The formula to determine the volume of the acid required is given below:

$\frac{C_{a}V_{a}}{C_{b}V_{b}} = \frac {N_{a}}{N_{b}}$

where $V_{a$ is the volume of acid required

$V_{a} = \frac {C_{b}V_{b}N_{a}}{C_{a}N_{b}}$

Concentration of base, Cb = (3.51/74)/0.75 = 0.063 M

Vb = 50. 0 mL

Ca = 0.229 M

Na = 2

Nb = 3

Va = (0.063 * 50 * 2)/(0.229 * 3)

Va = 9.17 mL

In conclusion, the volume of the acid is determined from the concentration, volume and mole ratio of the reaction.

Learn more about titration at: brainly.com/question/186765

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2 years ago