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arsen [322]
3 years ago
5

When was the speed of light first accurately calculated?

Chemistry
2 answers:
VikaD [51]3 years ago
7 0
A becuse i reamber somthing about a <span>lanterns or d </span>
Agata [3.3K]3 years ago
4 0

B. When Roemer used the eclipsed moons of Jupiter along with Earth's orbit around the Sun to compare different speeds over time.

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Need help with this question
hichkok12 [17]
What question? Lhh this is hilarious.
4 0
3 years ago
Urgent plzz help meeee thx
MakcuM [25]

Answer:

8

Explanation:

From the question given above, the following data were obtained:

t–butyl ion = (CH₃)₃C⁺

Number of valence electron =?

The valence electron(s) talks about the combining power of an element or compound as the case may be.

Considering the t–butyl ion, (CH₃)₃C⁺ we can see that it has a charge of +1 indicating that it has given out 1 electron to attain the stable octet configuration which has a valence electrons of 8. Thus, the valence electron of t–butyl ion, (CH₃)₃C⁺ is 8

5 0
2 years ago
ANSWER ASAP AND I WILL GIVE BRAINLYEST!!!!
den301095 [7]

Answer:

C

Explanation:

8 0
3 years ago
Why are plant cells and animal cells different
Alenkinab [10]
The Plant cell has cell walls to prevent it from basting in case of large amount of water.
while the animal cell doesn't have cell walls.
                 
                                  P.S. PHANTOM SNIPERS
5 0
3 years ago
What element am I?
Serga [27]

Answer:

H- hydrogen

Explanation: Hydrogen is in the first group meaning that it only has 1 valence electron and 1 energy level

4 0
2 years ago
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