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Afina-wow [57]
3 years ago
11

Which of the following is a change from a more condensed to a less condensed state of matter? Freezing Condensing Evaporating So

lidifying
Chemistry
1 answer:
3241004551 [841]3 years ago
8 0
Evaporating.

This is because evaporation occurs for things such as water coming in contact with a heat source that cause molecules to run crazy and begin to go farther and farther apart, becoming steam and evaporation in the air.

Therefore, during the process of evaporation, molecules become less condensed.

Hope this helps!
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Which physical property can be measured??
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Extensive property (like volume and mass), can be measured.
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6. Which of the following pH values would have the highest concentration of hydroxide ions? *
jeyben [28]

pH. 10 because it is strong base

4 0
3 years ago
A reaction was performed in which 4.0 g of cyclohexanol was reacted with an acid catalyst to obtain 2.8 g of cyclohexene. calcul
ioda

Answer:

              %age Yield  =  85.36 %

Solution:

The Balance Chemical Reaction is as follow,

               C₆H₁₂O  +   Acid Catalyst    →    C₆H₁₀  +  Acid Catalyst + H₂O

According to Equation ,

              100 g (1 mole) C₆H₁₂O produces  =  82 g (1 moles) of C₆H₁₀

So,

                       4.0 g of C₆H₁₂O will produce  =  X g of C₆H₁₀

Solving for X,

                      X =  (4.0 g × 82 g) ÷ 100 g

                      X  =  3.28 g of C₆H₁₀   (Theoretical Yield)

As we know,

                     %age Yield  =  (Actual Yield ÷ Theoretical Yield) × 100

                     %age Yield  =  (2.8 g ÷ 3.28 g) × 100

                     %age Yield  =  85.36 %

5 0
3 years ago
After 7.9 grams of sodium are dropped into a bathtub full of water how many grams of hydrogen gas are released
Nataliya [291]

Answer:

<em>The grams of hydrogen gas that are released is 0.343 gram</em>

Explanation:

<em>Given that:</em>

<em>2 Na + 2h₂0 ⇒ 2Na0H +N₂</em>

<em>Molecules of Na = 7.9/2.3 = 0.343 mol Na</em>

<em>Now,</em>

<em>2 molecules  of Na produces one mole h₂</em>

<em>0.343 mol of Na produce  0.343/2 = 0.1717 mol h₂</em>

<em>h2 = molecules * mw (molecular weight)  =0.1717 * 2 =0.343 grams</em>

<em>Therefore the grams of hydrogen gas released is = 0.343 grams</em>

6 0
4 years ago
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