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3 years ago

A gas has a volume of 29.3 L at 28.8 atm. What will its volume be if the pressure is changed to 16.5 atm?

Chemistry

1 answer:

Irina18 [472]3 years ago

6 0

Answer:

P₁V₁=P₂V₂

29.3 * 28.8 = 16.5* V₂

V₂ = 51.14 L

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4 years ago

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Which of the following chemical equations depicts a balanced chemical reaction?

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Answer:

D.) 2 H₂ + O₂ -----> 2 H₂O

Explanation:

An equation is balanced when there is an equal amount of each element on both sides of the reaction. If these amounts are unequal, coefficients can be added to modify the amount of particular molecules.

A.) Not balanced

2 H₂ + 2 O₂ -----> H₂O

Reactants: 4 hydrogen, 4 oxygen

Products: 2 hydrogen, 1 oxygen

B.) Not balanced

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Reactants: 4 hydrogen, 4 oxygen

Products: 4 hydrogen, 2 oxygen

C.) Not balanced

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Reactants: 2 hydrogen, 2 oxygen

Products: 2 hydrogen, 1 oxygen

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2 years ago

1. Which out of the following elements has the lowest electronegativity: Lithium, Beryllium, Magnesium, Sodium

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The element Sodium (Na) has a low electronegativity of the following elements.
The element Beryllium (Be) has the least metallic character.
The element Sodium (Na) has the largest atom.

Explanation:

Sodium (Na) which is a delicate, shimmering white, profoundly responsive soluble base metal loses an electron to a chlorine iota since it has seven electrons in its valence shell.
It needs one more electron to turn into a steady molecule. It has the most reduced electronegativity of the given components.
Beryllium (Be) is a light, silver-gray, relatively soft metal that is strong but brittle has the least metallic character of the given elements.
Since from left to right in a period, Metallic character decreases while nonmetallic character increases from top to bottom.
Sodium(Na) is the largest atom among the given elements since Atomic size decreases across a period from left to right and increases from top to bottom.

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3 years ago