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Nana76 [90]
3 years ago
11

How many meters are in one kilometer

Chemistry
2 answers:
saul85 [17]3 years ago
8 0

there are 1000 meters in one km

lozanna [386]3 years ago
4 0

the answer is 1,000. if this helps please rate 5 stars


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The element oxygen, represented by the symbol O, is classified as
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Oxygen<span> is a </span>chemical element<span> having a symbol </span>O<span> and having an </span>atomic number<span> 8.
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Question 4 of 10
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Answer:

B is the answer

Explanation:

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A chemist wants to make 6.5 L of a 0.340 M CaCl2 solution. Part A What mass of CaCl2 (in g) should the chemist use? Express your
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Answer:

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Explanation:

Data

Volume 6.5 L

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mass of CaCl₂ = ?

Process

1.- Calculate the molar mass of CaCl₂

molar mass = (1 x 40) + (2 x 35.5)

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2.- Convert the grams to moles

                       111 g of CaCl₂ -------------- 1 mol

                         x                   ---------------0.34 mol

                         x = (0.34 x 111) / 1

                         x = 37.74 g

3.- Calculate the total mass

                        37.74 g ------------------ 1 L

                            x        ------------------ 6.5 L

                            x = (6.5 x 37.74) / 1

                            x = 245.31

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