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3 years ago

Which scientist would best describe the motion of the earth?

1 answer:

5 0

I think kepler would be the one to best describe the motion of hte earth because he has a space telescope named after him

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If your good at science please help

Nataly [62]

This is biology btw :P arteries carry oxygenized blood away from heart, veins carry deoxygenized blood back to heart, and capillaries are tiny networks of blood vessels that give blood(oxygen) to body tissues

3 0

4 years ago

Calculate the volume in liters of a M potassium dichromate solution that contains of potassium dichromate . Round your answer to

maksim [4K]

The question is incomplete, here is the complete question:

Calculate the volume in liters of a 0.13 M potassium dichromate solution that contains 200. g of potassium dichromate . Round your answer to 2 significant digits.

Answer: The volume of solution is 5.2 L

Explanation:

To calculate the volume of solution, we use the equation used to calculate the molarity of solution:

$\text{Molarity of the solution}=\frac{\text{Mass of solute}}{\text{Molar mass of solute}\times \text{Volume of solution (in L)}}$

We are given:

Molarity of solution = 0.13 M

Given mass of potassium dichromate = 200. g

Molar mass of potassium dichromate = 294.15 g/mol

Putting values in above equation, we get:

$0.13M=\frac{200}{294.15\times \text{Volume of solution}}\\\\\text{Volume of solution}=\frac{200}{294.15\times 0.13}=5.23L$

Hence, the volume of solution is 5.2 L

3 0

3 years ago

3) Which solution has the highest boiling point at

Arturiano [62]

D. 0.10 M K3PO4(aq)

Explanation:

hope this helps :)

8 0

3 years ago

Read 2 more answers

I WILL MARK YOU BRAINLIST what is the difference between an element and an isotope

Anika [276]

Answer:

An isotope is one of two or more forms of the same chemical element. Different isotopes of an element have the same number of protons in the nucleus, giving them the same atomic number, but a different number of neutrons giving each elemental isotope a different atomic weight.

Explanation:

I hope you have a nice day and please mark me(:

5 0

3 years ago

Read 2 more answers

Animals do not make their own food from energy in sunlight. Explain why they still depend on the Sun for energy.

Talja [164]

Answer:

Vitamin D

Explanation:

Without Vitamin D animals (humans included) will start to degrade and organs will shut down

4 0

3 years ago

Read 2 more answers