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4 years ago

Which statement about the relationship between laws, hypotheses, and theories is true?

Chemistry

2 answers:

ludmilkaskok [199]4 years ago

8 0

If a hypothesis is not contradicted after a lot of testing it may be considered a law

Ira Lisetskai [31]4 years ago

7 0

<h3><u>Answer;</u></h3>

D. If a hypothesis is not contradicted after a lot of testing, it may be considered a law.

<h3><u>Explanation;</u></h3>

A hypothesis is a reasonable guess that is based on what is observed on the natural world.
A scientific theory is an in-depth explanation about an observed phenomenon. It contains one or more hypothesis that have been supported by repeated testing.
A law on the other hand is a statement about an observed phenomenon or a unifying concept.

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Assoli18 [71]

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3 years ago

calculate the number of moles of sulfuric acid that is contained in 250 mL of 8.500 M sulfuric acid solution

san4es73 [151]

Answer : The moles of $H_2SO_4$ are, 2.125 mole.

Explanation : Given,

Molarity of $H_2SO_4$ = 8.500 M

Volume of solution = 250 mL = 0.250 L (1 L = 1000 mL)

Molarity : It is defined as the number of moles of solute present in one liter of volume of solution.

Formula used :

$\text{Molarity}=\frac{\text{Moles of }H_2SO_4}{\text{Volume of solution (in L)}}$

Now put all the given values in this formula, we get:

$8.500M=\frac{\text{Moles of }H_2SO_4}{0.250L}$

$\text{Moles of }H_2SO_4=2.125mol$

Therefore, the moles of $H_2SO_4$ are, 2.125 mole.

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3 years ago

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Mrrafil [7]

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3 years ago

Why do A and T (and G and C) pair in a DNA double helix?

Usimov [2.4K]

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3 years ago

What does the space-filling model of a water molecule tell you about the relative size of the atoms?

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