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3 years ago

You are to write a poem or song about the planets and the information you submit have to be true about each planet.

Chemistry

2 answers:

snow_tiger [21]3 years ago

7 0

Someone added the answer already hope that helps you out

NikAS [45]3 years ago

3 0

Answer:

our solar system includes the sun and all the planets moons dwarf planets and asteroids that orbit around it the four planets closest to the sun include mercury venus earth and mars these inner planets are made of rock and metals they are quite small compared to the outer planets the four outer planets are called gas giants because they are made mostly of gases the outer planets include jupiter saturn uranus and neptune the most well-known dwarf planet in our solar system is Pluto

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The basic elements found in protein molecules

barxatty [35]

Nucleic acids typically contain phosphorous as well as nitrogen. The proteins, being made up a diverse set of amino acids, have, in addition to carbon, hydrogen, oxygen, and nitrogen, the elements sulfur and selenium.

3 0

3 years ago

I NEED HELP PLEASE! :)

riadik2000 [5.3K]

Answer:

$C_{21} H_{23} NO_{5}$

Explanation:

First thing is we have assume all the percents are grams so we have

68.279g C, 6.2760g H, 3.7898g N, and 21.656g O

Now convert each gram to moles by dividing the the molar mass of each element

68.279g/12.01g= 5.685 moles of C

6.2760g/1.01g= 6.214 moles of H

3.7898g N/14.01g= 0.271 moles of N

21.656g O/ 16.00g= 1.354 moles of O

Now to find the lowest ratios divide all the moles by the smallest number of moles you found, in our case, the smallest moles is 0.271 moles of N so divide everything by that....

5.685 moles/0.271 moles ------> ~21 C

6.214 moles/0.271 moles --------> ~23 H

0.271 moles / 0.271 moles ---------> 1 N

1.354 moles/ 0.271 moles ----------> ~5 O

So the empirical formula is C21H23NO5 $C_{21} H_{23} NO_{5}$

5 0

3 years ago

Identify each of the following household substances as a strong electrolyte, weak electrolyte, or non-electrolyte: salt solution

wolverine [178]

Answer:

Electrolytes are substances that can ionize in water. They could be acids, bases or salts as long as they give ions when they dissolve in water.

Explanation:

Strong electrolytes completely ionize when dissolved in water, leaving no neutral molecules. The strong electrolytes here are: salt water, baking soda (NaHCO3) solution.
Weak electrolytes do not completely dissociate in solution, and hence have a low ionic yield. Examples of this would be vinegar and bleach (which could be sodium hypochlorite or chlorine, which are weakly dissociated).
Non-electrolytes will remain as molecules and are not ionized in water at all. In this case, sugar solution is a non-electrolytes, even though sugar dissolves in water, but it remains as a whole molecule and not ions.

8 0

4 years ago

A ____________ is a large body that moves around a star?

Travka [436]

Answer:

A Planet

Explanation:

The earth for example, is a large body that orbits the sun, our local star

4 0

4 years ago

Read 2 more answers

1. Estuaries may be either brackish or freshwater systems. True O False

zzz [600]

Answer:

False - Estuaries are formed due to both brackish and freshwater.

Explanation:

Hope this Helps!!!

4 0

4 years ago