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3 years ago

6

Below you will see both the elements for comparison and a star's spectrum. Your job is to identify all the elements you can dete

ct in the star's atmosphere.

1 answer:

Andreas93 [3]3 years ago

3 0

Answer:

hey how are you doing and I am doing find

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A student is told to use 20.0 grams of sodium chloride to make an aqueous solution that has a concentration of 10.0 grams of sod

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Volume of the solution = $20.0 g NaCl * \frac{1 L solution}{10.0 g NaCl}$

= 2 L solution x $\frac{1000 mL}{1 L} =2000 mL$

Volume of solute = 7.5 mL

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3 years ago

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Pretty sure its photosynthesis ?

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3 years ago

A weather balloon has a volume of 52.5 liters at a temperature of 295 K. The balloon is released and rises to an altitude where

Goryan [66]

So you have a balloon rising through the atmosphere. use the formula p1/v1=p2/v2 and add the variables into the equation, leaving 295/52.5=252/x. multiply 252 by 52.5 and divide that number by 295.
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3 years ago

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When the pH of an aqueous solution is 8, what is the OH- ion concentration in moles per liter?

Lilit [14]

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D. 12 is 1 × 10-6

Explanation:

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3 years ago

52° 31' 12.0288"N and 13° 24' 17.8344" E.<br> What continent is it on?

olga55 [171]

Answer: Europe

Explanation: it’s in germany

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3 years ago