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riadik2000 [5.3K]
2 years ago
8

-QUESTION 4-

Chemistry
1 answer:
Triss [41]2 years ago
8 0

Answer:

B

Explanation:

because if a population gets to large it can mess up the whole eco system

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22. A piece of wood board contains approximately 6.76 X 1023 molecules of wood, C2H4920, how
Licemer1 [7]

Answer:

<h2>1.23 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{6.76 \times  {10}^{23} }{6.02 \times  {10}^{23} }  =  \frac{6.76}{6.02}  \\  = 1.22923...

We have the final answer as

<h3>1.23 moles</h3>

Hope this helps you

5 0
3 years ago
Which of the following statements applies to all states of matter? A. Matter takes the shape of its container. B, Matter is made
Marina86 [1]
D

A describes liquid, b describes solid, and c describes solid as well. therefore d is the only good answer
7 0
3 years ago
The reaction between bromine gas and fluorine gas to create bromine monofluoride gas has reached equilibrium. What is the effect
DedPeter [7]

Answer: The reaction between bromine gas and fluorine gas to create bromine monofluoride gas has reached equilibrium. What is the effect of adding more bromine gas to the reaction chamber?

More fluorine gas will be produced.

More bromine gas will be produced.

More bromine monofluoride gas will be produced.

Less bromine monofluoride gas will be produced.

I think it is more bromine monofluoride will be produce

Explanation:

8 0
2 years ago
Magnesium, on the left of Periodic Table, is more metallic than chlorine on the right of this Period. Why is this? - Because Mag
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Magnesium is more metallic than chlorine because elements with metallic character readily lose electrons. Magnesium has an ionic charge of +2, ie. it will lose 2 electrons if possible. Chlorine has an ionic charge of -1, means that it will gain 1 electron if possible.
7 0
2 years ago
When Pb and AlCl3 react together, lead (Pb) can replace aluminum (Al) in the compound because lead is lower on the activity seri
Andre45 [30]
False. Pb is lower than Al in the reactivity series. It cannot replace aluminium in AlCl3
8 0
3 years ago
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