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photoshop1234 [79]

4 years ago

8

Write a statement that explains of a subscript in a chemical formula

1 answer:

Maurinko [17]4 years ago

3 0

Answer:

In a chemical formula, a subscript can be defined as the number of atoms of the element immediately mentioned after the subscript. It simply depicts that how many atoms or molecules of a particular type does a substance comprise.

For example, the formula of water is H2O. The 2 here is the subscript which shows that there are two atoms of hydrogen present in the molecule of water. There is no number mentioned after O. Hence, we can tell that a single atom of oxygen is present.

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A gas has a pressure of 3.16 atm at STP. I have decided to transfer it to a container that is 3 times larger than the original v

Oliga [24]

Answer:

<u>The new pressure is 1.0533 atm</u>

<u></u>

Explanation:

According to<u> Boyle's Law :</u> The Pressure of fixed amount of gas is inversely proportional to Volume at constant temperature.

PV = Constant

P1V1 = P2V2

$P_{1}V_{1}=P_{2}V_{2}$ .....(1)

P1 = 3.16 atm

Accprding to question ,

V1 = V

V2 = 3 V

Insert the value of V1 , V2 and P1 in the equation(1)

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

$3.16\times V=P_{2}\times 3V$

V and V cancel each other

$3.16=P_{2}\times 3$

$P_{2}=\frac{3.16}{3}$

$P_{2}=1.05atm$

5 0

3 years ago

The maximum oxygen uptake is known as the __________.

andrezito [222]

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3 years ago

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Stella has poured 3 cups of water into a 1-L soda bottle. Stella then sealed the bottle and placed it in the sunlight. What natu

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(Please explain the answer. Thank you!)

Dominik [7]

Sample cost = $15.796

<h3>Further explanation</h3>

Given

Mass = 2 g

Density = 0.718 g/ml

Cost = $5.67 per mL

Required

Cost

Solution

The density : the ratio of mass and volume

Can be formulated :

Density (ρ) = m : V

The volume of the liquid :

V = m : ρ

V = 2 g : 0.718 g/ml

V = 2.786 ml

Sample cost :

= 2.786 ml x $5.67/ml

= $15.796

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The reaction between ethanoic acid and solution hydroxide is an example of

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