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Reika [66]
3 years ago
6

I NEED HELP ON EARTH SCIENCE !!!!!

Chemistry
2 answers:
Cloud [144]3 years ago
8 0
Where is the assignment?? OR worksheet
il63 [147K]3 years ago
6 0
What kind of problem

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50 mph west
it should be 
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For a particular isomer of C8H18, The following reaction produces 5093.7 KJ of heat per mole of C8H18(g) consumed under standere
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02(g) = 0 kj/mol 
<span>CO2 (g) = -393.5 kj/mol </span>
<span>H20(g) = -241.8 kj/mol </span>

<span>H total = -5094 kJ
</span>5094kJ = [8(-393.5) + 9(-241.8)] - [X + 12.5(0)] 
<span>-5094 kJ = [-3148 + (-2176.2)] - [x + 0] </span>
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7 0
3 years ago
If anyone is good at chemistry do you mind helping? (●'◡'●)
stepladder [879]

• Before the balloon was placed inside the hot water, the pressure was the same inside and outside the balloon. The hot water raised the kinetic energy of the air molecules inside the balloon, expanding the balloon, through thermal expansion.

• (1) the pressure of air inside the balloon increased, (2) the volume of the inside of the balloon increased as well, and (3) the temperature of the balloon increased. Note that pressure and volume are inversely proportional, and pressure and temperature are directly proportional. Therefore as the temperature increases, the pressure inside will increase, causing an increase in the volume. At a certain point though the volume will increase too much as to cause a significant decrease in pressure.

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A compound with the molecular formula C10H10O4 produces a 1H NMR spectrum that exhibits only two signals, both singlets. One sig
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Answer:

The attached figure shows the structure of dimethyl terephthalate.

Explanation:

Dimethyl terephthalate is a compound whose formula is C6H4 (COOCH3) 2. It is a diester produced from terephthalic acid and methanol. It is characterized by being a white solid. Another method for the preparation is from p-xylene and methanol, which is characterized by having an oxidation and an esterification.

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3 years ago
Who preformed the oil drop experiment
Ivan

Robert A. Millikan and Harvey Fletcher performed the oil drop experiment.

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2 years ago
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