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ohaa [14]
3 years ago
8

35 points plz be fr will mark brainliest

Chemistry
2 answers:
kap26 [50]3 years ago
4 0

Answer:

6. solar eclipsis

7. drive less fuel efficient vehicles

Explanation:

these are the only questions i get but i still hope this helps :)

Xelga [282]3 years ago
3 0

Answer:

Option b Solar eclipse

Option A drive less fuel efficent vehicle.

Both Population and foosil fuels...

See the image for answer.

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For the reaction A+B↽−−⇀C+D, assume that the standard change in free energy has a positive value. Changing the conditions of the
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Explanation:

a. Adding a catalyst

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7 0
3 years ago
What is the energy of an electromagnetic wave with a electromagnetic wave with a frequency of 3 * 10 Hz ?
Olin [163]

Answer:

E=1.989*10^{-32}J

Explanation:

From the question we are told that:

Frequency f=3 * 10 Hz

Generally the equation for Energy of an electromagnetic wave is mathematically given by

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Where

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  h=6.62607015 * 10^{-34}

Therefore

 E=6.62607015 * 10^{-34}*3 * 10

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8 0
3 years ago
Devices that allow you to do work in an easier way.​
IrinaVladis [17]

Answer:

The most notable of these are known as the "six simple machines": the wheel and axle, the lever, the inclined plane, the pulley, the screw, and the wedge, although the latter three are actually just extensions or combinations of the first three.

6 0
3 years ago
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The moon is about 400,000 km from the earth . Using Newton’s law of gravity how would the attraction between the earth and moon
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6 0
3 years ago
What is the mass of 8.0 x 10^26 UF6 molecules?
gulaghasi [49]
First, find the number of moles of UF6
Avagadro's number = 6.023 x 10^23

Number of moles = 8.0 x 10^26 / Avagadro's number = 8.0 x 10^26 / 6.023 x 10^23 = 1.328 x 10³ moles

Molecular weight of UF6 = Molecular weight of U (238.02891) + Molecular weight of F6 (6 x 18.9984032) = 238.02891 + 113.9904192 = 352.0193292 g/mol

Therefore mass of 8.0 x 10^26 UF6 molecules = 352.0193292 g/mol x 1.328 x 10³ moles = 467.481669 x 10³ grams




3 0
3 years ago
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