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Vitek1552 [10]
2 years ago
8

What type(s) of orbital overlap is(are) used to form the indicated bond in the following structure.

Chemistry
1 answer:
lorasvet [3.4K]2 years ago
3 0
D.....................
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I need an answer ASAP
Oduvanchick [21]

Time taken for star to reach Earth = 7.5 years

<h3>Further explanation</h3>

Given

7.5 light years(distance Earth-star)

Required

Time taken

Solution

Speed of light=v = 3 x 10⁸ m/s

1 light years = 9.461 × 10¹⁵ m= distance(d)

So time taken for 1 light years :

time(t) = distance(d) : speed(v)

t = 9.461 × 10¹⁵ m : 3 x 10⁸ m/s

t = 3.154 x 10⁷ s = 1 years

So for 7.5 light years, time taken = 7.5 years

8 0
3 years ago
What is true of experimental designs that are used in scientific research?
MissTica
This is used for multiple scientists can perform the experiment and they can compare results.
Hope This Helps! :D 
3 0
3 years ago
UUUUUULUHU Urgull (ULLO
timama [110]

Answer:

Plants are found in the domain of eukarya

7 0
3 years ago
The value of Zeff for a valence electron in an atom of silicon is?
lutik1710 [3]

Zeff is the effective nuclear charge wherein, Z resembles the number of protons in the nucleus while S corresponds to the number of non-valence electrons.

Zeff = Z - S

Silicon has 14 protons; its electron configuration is [Ne] 3s2 3p2. Its non-valence electrons is in the n = 1 and n =2 shells. There are 2 electrons in n = 1 and 8 in n = 2, so there are a total of 10 non-valence electron.

<span><span>Z<span>eff</span></span>= 14−10= 4</span>

So, the answer is 4.
6 0
3 years ago
How many moles are in 54.0 grams of Silver?
Lelechka [254]
54g ag *(108mol ag/1 g ag) =5832mol ag
4 0
3 years ago
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