Which object reflects light with with the longest wave

1 answer:

8 0

The Yellow Book. The yellow book is the object that reflects light with the longest wavelength. In the visible spectrum the color with the shortest wavelength is violet while the longest is red

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A student determines the molar mass of acetone

love history [14]

The Formula of Acetone is $C_3H_6O$
To find the Mass Molar of a compound, you add the Atomic weights of it's atoms.
If you check the Periodic table:
Atomic Weight of Carbone C: 12.0107
Atomic Weight of Hydrogen: 1.00794
Atomic Weight of Oxygen: 15.9994

So, you got:
Total Atomic Weight of Carbone in Acetone: 12.0107 * 3 = 36.0321
Total Atomic Weight of Hydrogen in Acetone: 1.00794 * 6 = 6.04764
Total Atomic Weight of Oxygen in Acetone = 15.9994 * 1 = 15.9994

Now, you add this numbers
36.0321 + 6.04764 + 15.9994 = 58.07914

So, the Molar Mass of Acetone is 58.09714 g/mol

Hope this Helps :D

7 0

3 years ago

If you stretch back a rubber band and release it, it shoots across the room. What type of energy conversion has occurred?

MAVERICK [17]

<span>Elastic to mechanical is the energy conversion that occurs. Elastic, the pulling back and stretching of the rubber band, mechanical is the release!</span>

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3 years ago

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consider the following reaction: Mg(s)+2HCl(aq)--->MgCl2(aq)+H2(g) the total pressure of gas collected over water is 650.0 mm

Vadim26 [7]

Answer:

633.5

Explanation:

The total presser is 650.00 mmHg, and it is collected over water, which at 19c is 16.5 mmHg. Therefore, to get the total pressure of H2 you would subtract the partial pressure of water from the total pressure.

650-16.5=633.5

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3 years ago

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Two Characteristics of Gas state

yulyashka [42]

Answer:

has no volume and very low density relative to liquids and solids

has high kinetic energy between particles

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3 years ago

Which prefix is the smallest?

Ann [662]

Answer:could it be kilo

Explanation:it looks like it has the least letters

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3 years ago