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Kitty [74]
2 years ago
14

Check wether all the answers are correct or not. please?​

Chemistry
2 answers:
slavikrds [6]2 years ago
8 0
You spelled whether wrong
zhenek [66]2 years ago
3 0

Answer:

I dont now but I think it is correct

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Perform the following operation
Yanka [14]

Taking into account the scientific notation, the result of the sum is 10.84300×10³.

  • <u><em>Scientific notation</em></u>

First, remember that scientific notation is a quick way to represent a number using powers of base ten.

The numbers are written as a product:

a×10ⁿ

where:

  • a is a real number greater than or equal to 1 and less than 10, to which a decimal point is added after the first digit if it is a non-integer number.
  • n is an integer, which is called an exponent or an order of magnitude. Represents the number of times the comma is shifted. It is always an integer, positive if it is shifted to the left, negative if it is shifted to the right.

  • <u><em>Sum in scientific notation</em></u>

You want to add two numbers in scientific notation. It should be noted that when the numbers to be added do not have the same base 10 exponent, the base 10 power with the highest exponent must be found. In this case, the highest exponent is 3.

Then all the values ​​are expressed as a function of the base 10 exponent with the highest exponent. In this case: 9.7300×10²= 0.97300×10³

Taking the quantities to the same exponent, all you have to do is add what was previously called the number "a". In this case:

0.97300×10³ + 9.8700×10³= (0.97300+ 9.8700)×10³= 10.84300×10³

Finally, the result of the sum is 10.84300×10³.

Learn more:

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3 0
2 years ago
Essential amino acids cannot be made
sattari [20]

Answer:

True

Explanation:

There are 9 essential amino acids which cannot be made by the body and have to be obtained from food.

They are histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine

4 0
2 years ago
When the following reaction reached equilibrium at 325 K , the equilibrium constant was found to be 172. When a sample was taken
miss Akunina [59]

Answer: 6.88M

Explanation:

K= [N204]/[NO2]^2

[NO2]= 0.2M

K=172

[N204]=K * [N02]^2

172 *0.2^2

=6.88M

6 0
3 years ago
Is Lilium lancifolium Heterotroph, Autotroph, or Both
Sphinxa [80]
Lilium lancifolium is an autotroph since it is a plant and makes its own food through photosynthesis.
4 0
3 years ago
What is the difference between an autosome and a sex chromosome
tatyana61 [14]
. The members of theautosome pairs are truly homologous; that is, each member of a pair contains a full complement of the same gene.The sex chromosomes, on the other hand, do not constitute a homologous pair.
8 0
3 years ago
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