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weeeeeb [17]
4 years ago
5

Ground water has some minerals dissolved in it. If you heat this water, collect the vapor in another container, and then cool it

, you will get pure, or distilled, water. What makes this process a physical change?
It forms a new substance (minerals), which is a physical change.
It forms a new substance (water vapor), which is a physical change.
It changes the color of water, which is a physical change.
It changes the molecular structure of water, which is a physical change.
It separates dissolved substances, which is a physical change.
NextReset
Chemistry
2 answers:
ale4655 [162]4 years ago
8 0
B IS THE ANSWER THANK YOU FOR ALL THE PEPOLE THAT ANSWER MY QUESTION MAHALO!!!!!!
Sonbull [250]4 years ago
4 0
It would be B. Because it forms a new substance (water vapor) which is a physical change.
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Sonbull [250]
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4 years ago
Which substance is a binary compound?
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3 years ago
Identify the two main forms of energy which drive the cycling of matter on Earth.
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Answer:

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3 years ago
Which elements in the periodic table are metalloids or have semimetallic properties
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8 0
4 years ago
What volume of a 0.2089 M KI solution contains enough KI to react exactly with the Cu(NO3)2 in 40.88 mL of a 0.3842 M solution o
tatyana61 [14]

Explanation:

As molarity is the number of moles placed in a liter of solution. Therefore, no. of mole = Molarity × volume of solution in liter

Hence, moles of Cu(NO_{3})_{2} will be calculated as follows.

No. of mole of Cu(NO_{3})_{2} = 0.3842 M \times 0.04388 L = 0.0168 mole

According to the given reaction, 2 mole of Cu(NO_{3})_{2} react with 4 mole of KI.

Therefore, for 0.0168 mole amount of Cu(NO_{3})_{2} required will be as follows.

Cu(NO_{3})_{2} = 0.0168 \times \frac{4}{2}

                       = 0.0337 mole of KI

Hence, volume of KI required will be calculated as follows.

               Volume = \frac{\text{no. of moles}}{Molarity}

    Volume of KI = \frac{0.0337}{0.2089}

                           = 0.1614 liter

                            = 161.4 ml            (as 1 L = 1000 mL)

Thus, we can conclude that 161.4 ml  volume of a 0.2089 M KI is required for the given situation.

5 0
3 years ago
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