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nikdorinn [45]
3 years ago
5

Why should a hypothesis be testable?

Chemistry
1 answer:
Ierofanga [76]3 years ago
4 0
A. It must be testable in order to be found true or false.
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Answer:

C

Explanation:

You mix different thing together to make a new thing.

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3 years ago
The recommended daily intake of potassium ( K ) is 4.725 g . The average raisin contains 3.513 mg K . Fill in the denominators o
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Explanation:

It is known that 1 gram contains 1000 milligrams. And, mathematically we can represent it as follows.

             \frac{1 g}{1000 mg} or \frac{1000 mg}{1 g}

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3 years ago
Two people are pushing on a shopping cart from opposite sides. When will the motion of
Darina [25.2K]

Answer:

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3 years ago
What will be the volume occupied by 2.5 moles of nitrogen gas exerting 1.75 atm of pressure at 475K?
Marina86 [1]

Answer:

THE VOLUME OF THE NITROGEN GAS AT 2.5  MOLES , 1.75 ATM AND 475 K IS 55.64 L

Explanation:

Using the ideal gas equation

PV = nRT

P = 1.75 atm

n = 2.5 moles

T = 475 K

R = 0.082 L atm/mol K

V = unknown

Substituting the variables into the equation we have:

V = nRT / P

V = 2.5 * 0.082 * 475 / 1.75

V = 97.375 / 1.75

V = 55.64 L

The volume of the 2.5 moles of nitrogen gas exerted by 1.75 atm at 475 K is 55.64 L

6 0
3 years ago
A compound differs from a mixture in that a compound always has a?
MissTica
1 is the answer because I studied science it's right number 1 is the correct one homogeneous composition
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3 years ago
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