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Sophie [7]
3 years ago
5

\which of the following statements is true about one of the compounds? (4 points)

Chemistry
1 answer:
MA_775_DIABLO [31]3 years ago
6 0

ANSWER:

They contain two or more elements in fixed ratio to each other

Explanation:

A compound is a substance formed when two or more chemical elements are chemically bonded together. The type of bonds holding elements together in a compound can vary. Two common types are covalent bonds and iconic bonds. The elements in any compound are always present in fixed ratios.

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4 years ago
a balloon contains 30.0 L of helium gas at 103 kPA. what is the volume of the helium when the balloon rises to an altitude where
stiv31 [10]
Answer:
                V₂  =  123.6 L

Explanation:

According to Boyle's law pressure and volume of a gas are inversely related if amount and temperature are kept constant. For the initial and final states the gas law is given as,

                                                P₁ V₁  =  P₂ V₂     ----- (1)
Data Given;
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                   V₁  =  30 L

                   P₂  =  25 kPa

                   V₂  =  ?

Solution:

Solving equation 1 for V₂,

                                        V₂  =  P₁ V₁ / P₂

Putting values,
                                        V₂  =  (103 kPa × 30 L) ÷ 25 kPa

                                        V₂  =  123.6 L

Result:
           As the pressure is decreased from 103 kPa to 25 kPa, therefore, volume has increased from 30 L to 123.6 L.
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Explanation:

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Math and science skills
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Answer:6

Explanation:

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