Answer:
Biphenyl
Explanation:
The reaction of bromo benzene with magnesium-ether solution yields a Grignard reagent.
The byproduct of this reaction is biphenyl. It is formed when two unreacted bromobenzene molecules are coupled together.
Hence, It is advised that the bromobenzene solution be added slowly to the magnesium-ether solution so that it isn't present in a high concentration, thus reducing the amount of biphenyl by-product formed.
If you were to compare the mass of the products and reactants in a reaction, you would find that the mass of the products is <span>equal to the mass of the reactants.</span>
Answer: tapeworm-human
Explanation:
Tapeworm, also known as Taenia solium is a parasitic nematode that gets into the human intestine, depriving humans of food nutrients. Its effects include diarrhoea, abdominal pains and general weakness of the human body.
Thus, the relationship of tapeworm and humans is parasitic because the tapeworm benefits at the human expense.
The mass of carbon monoxide present in the room is 0.006502 g.
<h3>What is Density?</h3>
Density is the mass of a substance per unit volume.
Where
ρ = density of the substance
m = mass of the substance and
V = volume of the substance
Here, ρ = 48 μg/m³
Volume = 13 ft x 13.5 ft x 19.5 ft
1 ft = 0.3408 m
V = (13 x 0.3408 m) x (13.5 x 0.3408 m) x (19.5 x 0.3408 m)
= 135.46 m³
m = ρ x V
= 48 μg/m³ x 135.46 m³
= 6502.08 μg
= 6502.08 x 10⁻⁶ g
=0.006502g
Hence, The mass of carbon monoxide present in the room is 0.006502 g.
Learn more about Density:
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I would say the answer is C) because the thermal energy of the coffee going into the cup has to level out until the cup gets warmer and the coffee gets cooler, and they reach the same temperature.Meaning that the jug which has already been at the same temperature(we can assume based on the verbiage “the coffee was poured from the jug to the cup”) which would give the jug more thermal energy.