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nexus9112 [7]
3 years ago
12

Pls answer correctly!! very important!!

Chemistry
1 answer:
ollegr [7]3 years ago
5 0

Answer:1

Explanation:

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PLEASE HELP ASAP!<br> EXTRA POINTS!!!<br> WILL MARK BRANIEST
Drupady [299]
Cirrus: feathered clouds
Cumulus: fluffy white clouds, dense vertical clouds
Stratus: smooth gray clouds that cover the whole sky
7 0
4 years ago
Covert 1.57 x 10^14 nm= ___m
LekaFEV [45]

Answer:

1.57 x 10⁷m

Explanation:

Given quantity is;

          1.57 x 10¹⁴nm

Now;

            1 nm  = 10⁻⁹

So, let us convert this given quantity;

         1 nm          =             10⁻⁹

  1.57 x 10¹⁴nm  will give 1.57 x 10¹⁴ x 10⁻⁹  = 1.57 x 10⁷m

 

7 0
3 years ago
How do scientists forecast space weather why?
slava [35]
Well that's a not easy task. <span>The specialized forecasters analyze near-real-time ground- and space-based observations to assess the current state of the solar  environment which includes the areas from the Sun to the Earth and points in between. Space weather forecasters also analyze the pattern of solar activity. </span>
5 0
3 years ago
Why is coal and fossil fuels a nonrenewable resource
Tems11 [23]

Answer:

It is a finite resource. Fossil fuels such as oil, natural gas, and coal are examples of nonrenewable resources. Humans constantly draw on the reserves of these substances while the formation of new supplies takes eons. Renewable resources are the opposite: Their supply replenishes naturally or can be sustained.

Explanation:

7 0
3 years ago
Having difficulty understanding formulas involved. Determine the quantity (g) of pure CaCl2 in 7.5 g of CaCl2•9H2O.
Luda [366]
To determine the quantity of pure CaCl2 from the given amount of CaCl2.9H2O, we use the ratio of CaCl2 to CaCl2.9H2O. From the formula the ratio would 1 is to 1 We calculate as follows:

7.5 g CaCl2.9H2O (1 mol / 273.1215 g) ( 1 mol CaCl2 / 1 mol CaCl2.9H2O ) ( <span>110.98 g / 1 mol ) = 3.05 g CaCl2

Hope this answers the question. Have a nice day. Feel free to ask more questions.</span>
7 0
3 years ago
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