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velikii [3]
3 years ago
8

What is the anwser to this question

Chemistry
1 answer:
Drupady [299]3 years ago
3 0

Answer:

Listen this is something you need to figure out because these questions prepare you for the future. Watch the map and use your critical thinking skills to answer the question. You got this!!

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What is the difference between radiant energy,sound energy and electric energy?
aleksandr82 [10.1K]

Answer:

Radiant Energy - is a combination of heat and light energy. Light energy, like sound energy, travels out in all directions in waves. ... Electrical Energy - Energy produced by electrons moving through a substance is known as electrical energy. We mostly see electric energy in batteries and from the outlets in our homes.

Explanation:

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3 years ago
Which is greater, the moons period of rotation or its period of revolution?
balu736 [363]
C. they are equal

This is because it takes about the same amount of time for the moon to rotate around its axis that it does to rotate around the Earth.
3 0
3 years ago
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Calculate the molarity of a 17.5% (by mass) aqueous solution of nitric acid. Select one: a. 2.74 m b. 4.33 m c. 0.274 m d. 3.04
den301095 [7]

Answer:

Option e.

Explanation:

Molarity is the concentration that indicates moles of solute in 1 L of solution.

We have another concentration, percent by mass.

Percent by mass indicates mass of solute in 100 g of solution.

Our solute is HNO₃, our solvent is water.

17.5 g of nitric acid is the mass of solute. We can convert them to moles:

17.5 g . 1mol / 63g = 0.278 moles

We do not have volume of solution. We assume the mass is 100 g because the percent by mass but we need density to state the volume.

Density = Mass / Volume

Mass / Density = Volume

Once we have the volume, we need to be sure the units is in L, to determine molarity

M = mol /L

4 0
3 years ago
Explain the Doppler effect using light. Why is the Doppler effect important in astronomy?
Alexeev081 [22]
Doppler effect is the compression or extension of a sound wave, which causes a change in its wavelength / frequency (and so its sound).
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3 years ago
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To minimize the sharp ph shift that occurs when a strong acid is added to a solution
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To minimize the sharp pH shift that occurs when a strong acid is added to a solution, IT IS PRACTICAL TO ADD A WEAK BASE.
When a strong acid is added to a solution, it usually brings about a sharp change in the pH of the concerned solution. To avoid this, one can add a  weak base to the solution first. The weak base will serves as a buffer for the strong acid and prevents the solution from experiencing sharp pH variations.
4 0
3 years ago
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