Why are some resources, like fossils, found in some places and not in others?

Chemistry

1 answer:

devlian [24]2 years ago

6 0

Answer:

Because thats where the animal passed away

Explanation:

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Calculate the final temperature of a sample of carbon dioxide of mass 16.0 g that is expanded reversibly and adiabatically from

Pie

For your first question, that equation only works if your situation is occurring at a constant temperature. Your original question is such a situation - everything occurs at 298.15 K. Therefore, you can use this value in the equation to calculate work. For your second question, Charles' Law describes how the volume of gas changes as you heat or cool it, PROVIDED PRESSURE AND MOLES OF GAS REMAIN CONSTANT THE WHOLE TIME. In your original question above, temperature stays constant while volume changes. However, what they don't tell you is that this necessarily requires a change in either pressure or moles of gas. Because the question works with the same sample the of gas the whole time (i.e. moles are constant), it is pressure that is changing (and this change will occur according to Boyle's Law, since temperature and moles are held constant). Hope that clarifies things!

4 0

2 years ago

7. If the pOH of an RbOH solution is 6.32, what is the concentration (molarity) of the base?

liubo4ka [24]

4.79 x 10⁻⁷moldm⁻³

Explanation:

Given parameters:

pOH of RbOH = 6.32

Unknown:

Molarity of the base = ?

Solution:

The pH or pOH scale is used for expressing the level of acidity alkalinity of aqueous solutions.