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The possible number and location of all subatomic are one of them is electrically neutral, while the other has a stable electronic configuration.
<h3>What are subatomic particles?</h3>
Subatomic particles are those particles that are present inside the atoms. They are electron, neutron, and proton. They are charged particles, protons are positively charged, electrons are negatively charged and neutrons are neutral.
The protons and electrons totally contribute to the atomic mass of the elements.
Thus, the subatomic particles are electrically neutral and stable to electronic configurations.
To learn more about subatomic particles, refer to the below link:
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Answer:
4.98 moles of H₂O
Explanation:
The balanced chemical equation for the combustion of propane is:
C₃H₈ (g) + 5 O₂ (g) ⟶ 3 CO₂ (g) + 4 H₂O (g)
That means that 1 mol of propane (C₃H₈) produces 4 moles of water (H₂O).
We know that 1 mol is equal to 6.022 x 10²³ molecules. So, we convert the molecules of propane to moles as follows:
7.50 x 10²³ molecules C₃H₈ x 1 mol/6.022 x 10²³ molecules = 1.245 mol C₃H₈
Now, we use the stoichiometric ratio 4 mol H₂O/1 mol C₃H₈ derived from the chemical equation to calculate the moles of water produced:
1.245 mol C₃H₈ x 4 mol H₂O/1 mol C₃H₈ = 4.98 mol H₂O
Answer:
6.064 kg
Explanation:
The freezing point depression of water is 1.86° C/m
To still freeze at -11.0° C, the molarity of the solution has to be no more than = 5.91 m.
The molecular weight of sucrose is:
12 C = 12 *12 = 144
22 H = 22 * 1 = 22
11 O = 11 * 16 = 176
Total = 342 g/mol
Thus one mole of sucrose has a mass of 342 grams.
However, since there are 3.00 kg of water, you can add (= 17.73 moles) to the water to get the -11.0° C freezing point depression.
Finally;
mass = number of mole * molar mass
= 17.73 moles * 342 grams / mole = 6063.66 grams
= 6.064 kg
Answer:
3
Explanation:
Atomic number refers to the number of protons in the nucleus of the atom.
and since there are 3 protons, the atomic number is 3