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3 years ago

Fill in the blank Potential energy is energy an object has due to its ____ or condition

Chemistry

1 answer:

victus00 [196]3 years ago

3 0

Answer :position

Explanation:

Potential energy is the energy stored in an object due to its position

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valentina_108 [34]

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Explanation:

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3 years ago

Which of the following is true about the concept of half-life?

Reptile [31]

Its A. because it measures the rate of the decay of the isotope

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3 years ago

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If a compound has a composition of 82% nitrogen and 18% hydrogen, what is the empirical formula for this compound

Damm [24]

Answer: The empirical formula for the given compound is $NH_3$

Explanation : Given,

Percentage of H = 18 %

Percentage of N = 82 %

Let the mass of compound be 100 g. So, percentages given are taken as mass.

Mass of H = 18 g

Mass of N = 82 g

To formulate the empirical formula, we need to follow some steps:

Step 1: Converting the given masses into moles.

Moles of Hydrogen = $\frac{\text{Given mass of Hydrogen}}{\text{Molar mass of Hydrogen}}=\frac{18g}{1g/mole}=18moles$

Moles of Nitrogen = $\frac{\text{Given mass of nitrogen}}{\text{Molar mass of nitrogen}}=\frac{82g}{14g/mole}=5.8moles$

Step 2: Calculating the mole ratio of the given elements.

For the mole ratio, we divide each value of the moles by the smallest number of moles calculated which is 5.8 moles.

For Hydrogen = $\frac{18}{5.8}=3.10\approx 3$

For Nitrogen = $\frac{5.8}{5.8}=1$

Step 3: Taking the mole ratio as their subscripts.

The ratio of H : N = 3 : 1

Hence, the empirical formula for the given compound is $NH_3$

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3 years ago

Erica is working in the lab. She wants to remove the fine dust particles suspended in a sample of oli. What method is she most l

patriot [66]

Erica is likely to use reverse osmosis process.it is the method used in the industry to treat water in oil and gas industry .or ultra filtration method is also employed

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4 years ago

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Liquid n-pentane and liquid n-octane are mixed to form a stream flowing at a rate of 1,496.5 lbm/hr. An in-line density measurem

Ivenika [448]

Answer:

202.20 cm^3/s

Explanation:

Hello,

I'm sending a photo showing the solution for this exercise.

The solution of the 2x2 system could be achieved by using a calculator or any available algebraic method.

Best regards.