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Yuliya22 [10]
3 years ago
14

PLEASE IN NEED HELP ASAP

Chemistry
1 answer:
Solnce55 [7]3 years ago
3 0
Because nothing appeared he concluded that <span>that living things could NOT just appear or come from nonliving things like water and air</span>
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Cual es la masa atomica promedio ​
kkurt [141]

Answer:

                                                                 

Explanation:

8 0
3 years ago
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Why might a scientist repeat an experiment if she did not make a mistake in the first one? A) Scientists who repeat experiments
9966 [12]

Answer:

The correct answer is B) it helps to ensure the result are consistent and repeatable.

Explanation:

Scientist generally repeat an experiment if he or she did not make a mistake in the first one to compare the results of two experiment, if there is no difference in the result or values obtainted from the observation of two experiment. he or she become sure that experiment was done in a right way because if there is some error made when experiment was carried out then the result of two same experiment would be different.

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3 years ago
If the energy difference between two electronic states is 214.68 kJ / mol , calculate the frequency of light emitted when an ele
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{\qquad\qquad\huge\underline{{\sf Answer}}}

Here we go ~

Energy difference btween the two electronic states can be expressed as :

{ \qquad \sf  \dashrightarrow \: \Delta E = h\nu}

[ h = planks constant,{\: \nu }= frequency ]

\qquad \sf  \dashrightarrow \:214.68 = 39.79 \times 10 {}^{ - 14}  \times  \nu

\qquad \sf  \dashrightarrow \: \nu =  \cfrac{214.68}{39.79 \times 10 {}^{ - 4} }

\qquad \sf  \dashrightarrow \: \nu =  \cfrac{214.68}{39.79 }  \times 10 {}^{14}

\qquad \sf  \dashrightarrow \: \nu  \approx  5.395 \times10 {}^{14}  \:\:hertz

5 0
1 year ago
Describe the main difference between the Bohr model of the atom and the Rutherford model
ycow [4]
Bohr suggested, that there are definitive shells of particular energy and angular momentum in which an electron can revolve. It was not in Rutherford's model
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3 years ago
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Sedimentary rocks form
grin007 [14]
Hello there!

Sedimentary rocks are formed due to layers so the answer is A.

Best wishes
-HuronGirl
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