Answer:
moles gaseous reactants will be doubled
Explanation:
Avogadro's law about ideal gas can be presented as PV=nRT where P is pressure, V is volume, n is the number of molecules, R is constant, and T is temperature.
The question asks how many molecules of gas reactant (n) so we can tweak the formula into n=...
PV=nRT
n=PV/RT
Pressure, constant and temperature are the same so we can remove it from the equation.
n= V
The volume is directly proportional to the number of molecules. If the volume is doubled then (V2= 2*V1), then the number of the molecule(n) needed will be doubled too.
Chemical reactions can be identified when there is a change in color, energy is produced, change in odor, or if new substance forms.
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Answer:
Explanation:
You calculate the energy required to break all the bonds in the reactants.
Then you subtract the energy needed to break all the bonds in the products.
CH₃CH₂OH + 3O₂ ⟶ 2CO₂ + 3H₂O
Bonds: 5C-H 1C-C 1C-O 1O-H 3O=O 4C=O 6O-H
D/kJ·mol⁻¹: 413 347 358 467 495 799 467
1.54^-10 m, you bring the decimal point back to the position after the first whole number and count the places it took to get it there. If you're moving it backwards, the exponent will be negative, and if you're moving it forwards the exponent will be positive