There are many types of forces. Which statement best compares an electrical force to gravitational force?

2 answers:

6 0

The answer is B.

Opposite charges attract to each other. Alike charges repel each other. We’ve been taught this since elementary school. So, charges determine the electrical force.

Newton’s Law of Gravity essentially says the gravitational force is reliant on the mass of the two bodies and the distance squared between them.

To debunk answer A, you could think of magnets. Then compare that system to something like idk, a set of balls that are smaller than the magnets. According to A, the gravity between the balls would be from the electrical force which is beyond incorrect. And the force between the magnets is from gravity, which is also incorrect. Size doesn’t matter

Murrr4er [49]3 years ago

4 0

Answer: it is A.

Explanation:

Compare the electric force and gravitational force. ... Both forces are inversely proportional to the square of the distance between the objects, this is known as the inverse-square law. ... If there are two charges that are DIFFERENT, they attract.

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Equal volumes of two solutions, one containing a strong acid at pH 2 and the other containing a strong base at pH 12, are mixed.

mash [69]

Answer:

Explanation:

Assume we have 1 L of each solution.

Solution 1

$\text{[H$^{+}$]}= 10^\text{-pH} \text{ mol/L} = 10^{\text{-2}} \text{ mol/L}\\ \text{ moles of H}^{+} = \text{ 1 L solution} \times \dfrac{10^{-2}\text{ mol H}^{+}}{\text{1 L solution}} = 10^{-2}\text{ mol H}^{+}$

Solution 2

pH = 12

pOH = 14.00 - pOH = 14.00 - 12 = 2.0

$\text{[OH$^{-}$]}= 10^\text{-pOH} \text{ mol/L} = 10^{\text{-2}} \text{ mol/L}\\ \text{ moles of OH}^{-} = \text{ 1 L solution} \times \dfrac{10^{-2}\text{ mol OH}^{-}}{\text{1 L solution}} = 10^{-2}\text{ mol OH}^{-}$