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Eddi Din [679]
3 years ago
14

A student has two objects. Object 1 has a mass of 10 g and a volume of 5 cubic centimeters. Object 2 has a mass of 10 g and a vo

lume of 20 cubic centimeters. If both objects are placed in water, which will float and why?
Chemistry
1 answer:
k0ka [10]3 years ago
7 0
Object one will float because the mass and volume are lighter than object two. Object one also has a smaller surface area.
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DerKrebs [107]

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3 years ago
A gas has a volume of 5.00 L at 20 degrees Celsius. What is the volume of gas at 150 degrees Celsius.
WARRIOR [948]

Answer:

7.22 L

Explanation:

From the question,

Applying Charles law,

V₁/T₁ = V₂/T₂...................... Equation 1

Where V₁ = Initial volume of gas, V₂ = Final volume of gas, T₁ = Initial Temperature of gas in Kelvin, T₂ = Final Temperature of gas in Kelvin

Make V₂ the subject of the equation

V₂ = (V₁×T₂)/T₁................. Equation 2

Given: V₁ = 5.00 L, T₁ = 20 °C = (20+273) K = 293 K, T₂ = 150 °C = (150+273) K = 423 K

Substitute these value into equation 2

V₂ = (5.00×423)/293

V₂ = 7.22 L

5 0
3 years ago
1) Compounds Y and Z both have the formula C9H18.
sashaice [31]

Answer:

See explanation and images attached

Explanation:

We know that the cis isomer has more heat of hydrogenation since it is less stable than the trans isomer. Since the hydrogenation of both compounds yields the same product and the hydroboration/oxidation both give a primary alcohol, they are geometric isomers and Y is the trans isomer (Image 2).

For the compound C8H12, the compound in question must be 1,5- cyclooctadiene since two moles of the same aldehyde was obtained after ozonolysis and reaction with two equivalents of hydrogen gives cyclooctane (Image 1).

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Which non-metal is a liquid at room temperature
bixtya [17]

The only nonmetal that is liquid at room temperature is the element Br or Bromine. When we say at room temperature, it means at zero degrees Celsius and at one atmospheric pressure. The metal that is liquid at room temperature is the element Hg or mercury.

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3 years ago
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Question 22: conclusion
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3 years ago
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