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KonstantinChe [14]
3 years ago
7

Which option is an example of a chemical change?

Chemistry
2 answers:
umka21 [38]3 years ago
7 0

Answer:

Fireworks exploding

(yes, i know i'm late UvU )

Katena32 [7]3 years ago
5 0

Answer:

the answer would be  A. fireworks exploding

Explanation:

I TOOOK The test and i got thisone wrong lol so i reviwed what

i got wrong

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HELP ASAP 20 OR MORE POINTS!!!!
pishuonlain [190]
<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>
6 0
3 years ago
Read 2 more answers
What happens to the number of valence electrons as you move from element 1 to element 18 on the periodic table?
BARSIC [14]

Answer:

B

Explanation:

the group number is=valence electrons. element 1 is in group 1 element 18 is in group 8. 1<8

6 0
3 years ago
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Which of the following groups of atoms are most likely to have similar properties?
vladimir1956 [14]
The third option because the elements mentioned in that selection are in the same group, they must have similar properties.
3 0
3 years ago
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Which one of the following [H+] concentrations represents an acidic solution?
Nutka1998 [239]
The correct answer is C.
7 0
3 years ago
Which element has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d11 4p4?
pickupchik [31]
<span>Selenium (se) 
........
.....</span>
4 0
3 years ago
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