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kykrilka [37]
3 years ago
9

when Jane drives to work, she always places her purse on the passengers seat. by the time she gets to work, her purse has fallen

on the floor in front of the passenger's seat. One day, she asks you to explain why this happens in term of physics. what do you say?
Chemistry
1 answer:
marishachu [46]3 years ago
7 0
Hmm, friction maybe? I guess it depends on how fast she stopped?
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Bromine (Br,) is observed as a red-brown color During the bromination of benzene, an electrophilic aromatic substitution, why do
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Answer:

b. The bromine (Br2) has reacted with the benzene, leaving fewer bromine molecules in solution.

Explanation:

Colour is caused by absorption of light of the frequency of “complementary colours”. Exactly which frequencies molecules absorb depends on the arrangement of electrons. Obviously, to break the Br-Br bond and the C=C bond in the reactants and replace them with two C-H bonds is a significant reordering of electrons and so the new molecule is no longer able to absorb the same frequencies as previously. Hence, a colour change, in this case from orange to colourless.

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What is the chemical name of the compound represented by the formula Ni2O3? Use the list of polyatomic ions and the periodic tab
bearhunter [10]
The chemical name is nickel (III) oxide .
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When 10 g of diethyl ether is converted to vapor at its boiling point, about how much heat is absorbed? (c4h10o, δhvap = 15.7 kj
vagabundo [1.1K]

Answer:

ΔH= 3KJ

Explanation:

The total heat absorbed is the total energy in the process, and that is in form of entalpy.

ΔH = q + ΔHvap, where q is the heat necessary for elevate the temperature of dietil ether. Suppose the initial temperature is room temperature (25ºC=298 K), then

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ΔH= 2.5KJ ≈ 3KJ

5 0
3 years ago
Helppp ASAP Don’t GUESSSSS
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I'm gonna go ahead and guess, and say its B.

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