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Taya2010 [7]
3 years ago
15

254950m to millimeter

Chemistry
1 answer:
Arte-miy333 [17]3 years ago
7 0
254950000 millimeters
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C3H

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Initially these primary suit particles have roughly the composition and each is actually made up of several thousand carbon Adams the empirical formula suggest cycle is highly unders and unsaturated made structural element

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You are given a small bar of an unknown metal. You find the density of the metal to be 10.5 g/cm3. An X-ray diffraction experime
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Explain the difference between physical and chemical properties. Support your answer with examples.
Margarita [4]

Answer:

physical properties

<em>meaning</em><em>:</em>

the properties of matter that can be measured

<em>Exa</em><em>mple</em><em>:</em>

  • boiling point
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  • heat conductivity
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chemical properties

<em>mean</em><em>ing</em><em>:</em>

The properties of matter that undergo chemical reaction when matter reacts with other matter

<em>exa</em><em>mple</em><em>:</em>

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HOPE THIS HELPS

4 0
3 years ago
Find the hydrogen ion concentration of a saturated solution of calcium hydroxide whose ph is 13. 1
salantis [7]

The pH of the solutions is 12.67.  

     

<h3>What is pH of a Solution?</h3>

pH is the measurement of how acidic or basic a solution is. The range of pH values is from 0 to 14. Lower pH values mean higher acidity, while higher pH means higher basicity. If the pH value is equal to 7, then the solution is neutral.

To calculate the pH of the solution, a few approaches are possible. Here, the pOH of the solution is calculated first using the molar concentration of  OH^{-1} ions. Because pH + pOH = 14, the pH of the solution can then be calculated by subtracting pOH from 14.

Because 2 moles of OH^{-1} ions are formed per mole of Ca(OH)_{2}dissolved, the pOH of a saturated Ca(OH)_{2} solution at  20^{.C} is,  

Concentration (C_{OH}) of OH^{-1} ions,

          C_{OH}   = 0.02335 mol Ca(OH)_{2}/L  X 2 mol OH^{-1} /1 mol Ca(OH)_{2}

            C_{OH} = 0.0467 mol OH^{-1}/L

*pOH of saturated Ca(OH)_{2} solution,

                                   pOH = -log [C_{OH}]

                                   pOH = -log [0.0467 mol OH^{-1}/L ]            

                                  pOH = 1.33  

*pH of saturated Ca(OH)_{2} solution,

                                   pH = 14 - 1.33

                                   pH = 12.67

Hence, the pH of the solutions is 12.67.

Learn more about  pH of the solutions here:

brainly.com/question/6988456

#SPJ4

4 0
2 years ago
1. Explain Why is Earth's<br>atmosphere important to life<br>on Earth?​
lozanna [386]

The atmosphere is an important part of what makes Earth livable. It blocks some of the Sun's dangerous rays from reaching Earth. It traps heat, making Earth a comfortable temperature. And the oxygen within our atmosphere is essential for life.

8 0
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