Answer:
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Protons is what indicates the element
Different numbers of neutrons/ electrons would result in a charged elements (isotope)
1) All the CO2 comes from the C24 H30 N3 O
2) To balance C from CO2 with C from C24, the ratio of cC24 H30 N3 O to CO2 is 24 / 1
3) Convert 1.20 g of CO2 to number of moles
number of moles = mass in grams / molar mass
mass = 1.20 g
molar mass = 12.01 g/mol + 32.00 g/mol = 44.01 g/mol
number of moles = 1.2 g / 44.01 g/mol = 0.0273 mol
4) proportion
1 mol C24 H30 N3 O / 24 mol CO2 = x / 0.0273 mol CO2
=> x = 0.0273 mol CO2 * 1 mol C24H30N3O / 24 mol CO2 = 0.00114 mol C24H30N3O
5) Convert 0.00114 mol C24H30N3O to grams
molar mass = 376.5 g/mol
mass = 0.00114 mol * 376.5 g/mol = 0.429 g
6) mass percent in the mixture
mass percent = (mass of lsd / mass of mixture) * 100 = (0.429g / 1.0g) * 100 = 42.9%
Answer: 42.9%
Answer:
d. adding an inhibitor
c. fish that emit light
c. released
Explanation:
An inhibitor is a negative catalyst. It is usually a substance that slows down the rate of chemical reaction.
Chemical inhibitors acts in way that makes reactions drags over time.
Increasing temperature, increasing concentration and decreasing particle size all will increase the rate of chemical reaction. They make reactions proceed more faster.
When a fish emits light, it is not an exothermic reaction.
An exothermic reaction is one in which heat is released to the environment. In such reactions, heat is liberated to the surroundings. At the end of the reaction, the surrounding will have a higher temperature compared to the reaction.
We assign exothermic reactions a negative value because the sum of heat contents of products is less than that of reactants.
Hardness, density and something else I forget
