Answer: I think Sulfur dioxide
Explanation: sulfur dioxide is highly known as a bleaching agent in chemical factories during chemical processes and production
I am not to sure about bleaching in the SUGAR FACTORIES but if u need more explanation about sulfur dioxide in bleaching feel free to COMMENT!!!
Answer:
4.963x 10²
7.8761x 10³
8.9 x 10⁻²
Explanation:
Scientific notation is the way to express the large value in short form.
The number in scientific notation have two parts.
. The digits (decimal point will place after first digit)
× 10 ( the power which put the decimal point where it should be)
for example the number 6324.4 in scientific notation will be written as = 6.3244 × 10³
a) 496.3 x 10²
4.963x 10²
b) 7876.1 x 10⁻⁷
7.8761x 10³
c) 0.089 x 10⁻⁹
8.9 x 10⁻²
The combustion of isooctane (C₈H₁₈) is written below:
2 C₈H₁₈ (l) + 25 O₂ (g) → 16 CO₂ (g) + 18 H₂O (l)
The formula for heat of combustion is:
ΔHc = (∑Stoichiometric coefficient×ΔHf of products) - (∑Stoichiometric coefficient×ΔHf of reactants), where ΔHf is heat of formation.
ΔHf of isooctane = -259.2 kJ/mol
ΔHf of O₂ = 0 kJ/mol
ΔHf of CO₂ = -393.5 kJ/mol
ΔHf of H₂O = <span>-285.8 kJ/mol
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ΔHc = [(16 mol×-393.5 kJ/mol )+(18 mol×-285.8 kJ/mol)] - [(2 mol×-259.2 kJ/mol) + (25 mol*0 kJ/mol)]
ΔHc = -10,922 kJ
<span>Statement A is wrong because all atoms has protons and neutrons in the neucleus except for hydrogen that has only one proton in the neuclues. Statement B is also wrong. Statement C is correct as there exists isotopes which are atoms of the same element wich exist with different number of neutrons.</span>