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kondor19780726 [428]
3 years ago
13

Type the correct answer in the box.

Chemistry
2 answers:
OlgaM077 [116]3 years ago
7 0

Explanation:

Mass number of an atom means the sum of total number of protons and neutrons present in an atom.

On the other hand, atomic number is the total number of protons present in an atom.

Therefore, mass number of phosphorous is 30 g/mol whereas atomic number of phosphorous is 15 g/mol.

Thus, the mass of 1 mole of phosphorus atoms is 30 grams.

tatiyna3 years ago
4 0

the mass of  1  mole of phosphorus atoms is approximately  30 g

hope this helps :)

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Answer:

<h3>A television is commercial technology commonly uses plasmas. </h3>
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“Fine sediment buries the organism, and pressure eventually squeezes out the liquid and gas parts of the remains, leaving only a
wlad13 [49]
Decomposition I believe. hope this helps

4 0
3 years ago
Consider the combustion of octane (C8H18)
sesenic [268]
The balanced equation for the above reaction is as follows;
2C₈H₁₈ + 25O₂ --->  16CO₂  + 18H₂O
stoichiometry of octane to CO₂ is 2:16
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when 2 mol of octane reacts it forms 16 mol of CO₂
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3 0
3 years ago
What volume of sulfur trioxide would be produced by reaction of 2.56 L of oxygen with excess sulfur at STP?
shepuryov [24]
The balanced chemical reaction would be :

S + O2 = SO2
2SO2 + O2 = 2SO3

We are given the amount of oxygen to be used in the reaction. This will be the starting value in the calculations. We do as follows:

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4 0
3 years ago
Write 0.000000093425 in Scientific Notation with 4 significant figures.
Romashka-Z-Leto [24]

<u>Answer:</u> The given number in scientific notation is 9.342\times 10^{-8}

<u>Explanation:</u>

Scientific notation is the notation where a number is expressed in the decimal form. This means that the number is always written in the power of 10 form. The numerical digit lies between 0.1.... to 9.9.....

If the decimal is shifting to right side, the power of 10 is negative and if the decimal is shifting to left side, the power of 10 is positive.

We are given:

A number having value = 0.000000093425

Converting this into scientific notation, we get:

\Rightarrow 0.000000093425=9.342\times 10^{-8}

Hence, the given number in scientific notation is 9.342\times 10^{-8}

6 0
4 years ago
Read 2 more answers
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