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Papessa [141]
3 years ago
6

Which of the following is not equal to 0.536 kilometers?

Chemistry
2 answers:
qwelly [4]3 years ago
5 0

Answer : The incorrect option is, 53.6 hectometers (hm)

Explanation :

(1) The conversion used from kilometers to hectometers is:

1 km = 10 hm

Converting the given value, we get:

\Rightarrow 0.536km\times (\frac{10hm}{1km})=5.36hm

The value in hectometers is 5.36 hm

(2) The conversion used from kilometers to meters is:

1 km = 1000 m

Converting the given value, we get:

\Rightarrow 0.536km\times (\frac{1000m}{1km})=536m

The value in meters is 536 m

(3) The conversion used from kilometers to millimeters is:

1 km = 1000000 mm

Converting the given value, we get:

\Rightarrow 0.536km\times (\frac{1000000mm}{1km})=536000mm

The value in millimeters is 536000 mm

(4) The conversion used from kilometers to centimeters is:

1 km = 100000 cm

Converting the given value, we get:

\Rightarrow 0.536km\times (\frac{100000cm}{1km})=53600cm

The value in centimeters is 53600 cm

Hence, the incorrect answer is, 53.6 hectometers (hm)

ladessa [460]3 years ago
3 0
53.6 hectometers is not equal to 0.536 kilometer
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The correct question is as follows: 0.500 moles of potassium oxide is dissolved in enough water to make 2.00 L of solution. Calculate the molarity of this solution (plz help!)

Answer: The molarity of this solution is 0.25 M.

Explanation:

Molarity is the number of moles of a substance divided by volume in liter.

As it is given that there are 0.5 moles of potassium oxide in 2.00 L of water so, the molarity of this solution is calculated as follows.

Molarity = \frac{moles}{volume(in L)}\\= \frac{0.5 moles}{2.00 L}\\= 0.25 M

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2 years ago
The first law of thermodynamics states that . How is this also a statement of the principle of conservation of energy?
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The answer is a change in internal energy causes work to be done and heat to flow into the system.  

<u>Explanation:</u>

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