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Lady_Fox [76]
3 years ago
7

Kayla is creating a model to show her understanding of the water cycle. She wants to show that water is constantly cycling betwe

en the atmosphere and Earth’s surface.
What would be the BEST type of model for Kayla to create.


A 3-D model of H2O created with gumdrops and toothpicks.

A. A diagram of molecules gaining energy as they being to evaporate and enter the atmosphere.

B. A poster with pictures of lakes, oceans, rivers and ponds.

C. A circular diagram with arrows showing the movement of water between Earth’s surface and atmosphere.
Chemistry
1 answer:
Orlov [11]3 years ago
3 0

Answer:C

Explanation:

It would be the most visually understandable.It would be easyer to understand what you are modeling.

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4 years ago
how many moles of potassium would you need to prepare 1200 grams of 5.0% potassium sulfate (m/m) solution
Marianna [84]
The  moles  of  potassium  that  you  would    need  to  prepare  1200 g  of  5% potassium   sulfate solution  is    1.538 moles

calculation
  calculate  the mass  potassium using  the below formula

%M/M =  mass  of the  solute(potassium)/mass of the  solvent (potassium  sulfate solution)

let  the  mass  of  potassium be represented by  Y

then  convert %  into fraction  = 5/100

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cross  multiplication
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It's just kind of process of elimination. None of the other answers make as much sense

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