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tankabanditka [31]
3 years ago
10

In the formula for water ,(H2O), what does the lack of subscript after the O indicate?

Chemistry
2 answers:
Lisa [10]3 years ago
7 0

Answer:

The answer is B I took the test

Explanation:

ladessa [460]3 years ago
4 0
I believe its B. <span>The chemical formula for water H2O represents 2 hydrogen and 1 oxygen in the compound.  </span>
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3. At a pressure of 405 kPa, the volume of a gas is 6.00 cm
monitta

The pressure gets increased to 486 kPa from 405 kPa, when the volume is decreased from 6 cm³ to 4 cm³.

Explanation:

In the present problem, the temperature is said to remain at constant and there is change in the pressure. So according to Boyle's law, the relationship between pressure and volume of any gaseous objects are inversely related to each other. In other words, the pressure attained by gas molecules in a container will be inversely proportional to the volume of the gas molecules occupied in the container, at constant temperature.

V=\frac{1}{P}

So, if two volumes V₁ and V₂ are considered, then their respective pressure will be represented as P₁ and P₂. Then, as per Boyle's law,

V_{1}P_{1}=V_{2}P_{2}

So let us consider, V₁ = 6 cm³ and V₂ = 4 cm³ and pressure P₁ = 405 kPa and we have to determine P₂.

Then,  6*405=5*P_{2}\\ \\P_{2}=\frac{2430}{5} =486 kPa

So, the pressure at new volume of 4 cm³ is 486 kPa. It can be seen that as there is decrease in the volume, there is an increase in the pressure. So it satisfied the Boyle's law.

Thus, the pressure gets increased to 486 kPa from 405 kPa, when the volume is decreased from 6 cm³ to 4 cm³.

6 0
3 years ago
If two gases are present in a container, the total pressure in the container is equal to
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.the sum of the pressures that each gas would exert if they occupied twice the volume
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Is electrical conductivity an extensive property or an intensive property?
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Your Answer Will Be Intensive Property
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An alcohol is oxidized to carboxylic acid what is the molecular formula of alcohol
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Pierce conducts an experiment in which waves collide in a way that the energy increases, which means that has occurred
Vikki [24]
<h2>Answer:</h2>

It means the waves collides and constructive interference occurred.

<h3>Explanation:</h3>

If the two waves coming from the opposite direction collide with each other, there are two way of their interference.

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Hence in experiment there will be constructive interference.

8 0
3 years ago
Read 2 more answers
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