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nadya68 [22]
3 years ago
12

HELP ASAP 20 OR MORE POINTS!!!!

Chemistry
2 answers:
pishuonlain [190]3 years ago
6 0
<h2>YeS im Am fRom pLanet k12 And brinG anD imPortant MesSage </h2>

  • The answer to your question is, <u><em>There are only so many ways matter can arrange itself within that infinite universe.</em></u>

<h2><em>Also if your on the same test as me heres some other sTuff that was on my test </em></h2><h2><em> </em></h2>

 Question 1 (1 point)  

In Brian Greene's "A Physicist Explains Why Parallel Universes May Exist", what reason does Greene give for why he believes parallel universes may exist?

  • <em>Answer: There are only so many ways matter can arrange itself within that infinite universe.</em>

<em>   </em>

Question 2 (1 point)  

Choose the best explanation for why we experience the Mandela Effect.

  • <em>Answer: Our brains tend to fill in information that we cannot readily recall and make associations that are not true.</em>

Question 3 (1 point)  

From the article "Time Travel Is A Fun Science Fiction Story But Could It Be Real?", Albert Einstein's Theory of Relativity is described as what?

 

  • <em>Answer:  The pulling force of gravity causes space to curve and causes time to slow down.</em>

Question 4 (1 point)  

From the video " Are Wormholes The Answer To Time Travel?", how are worm holes described?

  • <em>Answer:   A tunnel in space connecting two regions very distant from each other. A "short cut" through space</em>

Question 5 (1 point)  

Many scientists think human cloning is possible, so why haven't we made human clones yet?

  • <em>Answer:  Human cloning is extremely controversial and many people believe it is unethical</em>

<h2><em>HOPE THIS HELPS ANYONE IF IT DOES THANK AND RATE FOR A FREE COOKIE :D </em></h2>
s2008m [1.1K]3 years ago
4 0

I am just putting in an answer so you can give the messiah brainliest.

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In chromatography why is it important to remove the strip of paper until it reaches the end​
Zielflug [23.3K]
<h3>Answer:</h3>

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  • Because the water doesn't have to reach all the way to the top.
6 0
2 years ago
Rocks formed by changes in heat and pressure or the presence of hot, watery fluids
Irina18 [472]
If you're looking for "what rocks are formed by changes..." it's Igneous Rocks.
3 0
3 years ago
Read 2 more answers
An electron is the largest part of an atom. True or False?
IrinaVladis [17]

Answer: False

Explanation:

Electrons are the smallest of the three particles that make up atoms. Electrons are found in shells or orbitals that surround the nucleus of an atom. Protons and neutrons are found in the nucleus. They group together in the center of the atom.

6 0
3 years ago
Please answer my questions. I really need them soon. I will post the links for other questions in the comments.
Assoli18 [71]

Explanation:

option option B is the correct answer of given statement helium-4(He)=2

6 0
2 years ago
Which of the following equations does not demonstrate the law of conservation of mass?
enot [183]

The third option does not obey the law of conservation of mass.

Option 3.

Explanation:

The law of conservation of mass states that the sum of the masses of reactants should be equal to the sum of the masses of the products.

For example, if we consider the first option to verify if it obeys law of conservation of mass or not, 2 Na + Cl₂ → 2 NaCl

So one way to verify it is to find the mass of Na, then multiply it with 2, and then add this with 2 times of mass of chlorine. So this sum should be equal to the 2 times mass of NaCl. But it is somewhat lengthy.

Another way to easily determine this is to check if the elements are present equally in both sides. Such as, in reactant side and product side 2 atoms of Na is present . Similarly, the Cl atoms are also present in equal number in both reactant and product side. Thus this obeyed the law of conservation of mass.

Like this, if we see the second option, there also 1 atom of Na is present in reactant and product side and 2 molecules of H is present in reactant and product side, 1 oxygen is present in reactant and product side and 1 Cl is present in reactant and product side. So it also obeys the law of conservation of mass.

But in the third option, P₄ + 5 O₂→ 2 P₄O₁₀, here, there is 4 atoms of P in reactant side but in product side there is (4*2) = 8 atoms of P. Similarly, the number of atoms of oxygen in reactants and product side is also not same. So the third option does not obey the law of conservation of mass.

The fourth option also obeys the law of conservation of mass as the number of atoms of each element is same in both the product and reactant side.

Thus, the third option does not obey the law of conservation of mass.

5 0
3 years ago
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