Which is the best label for the dotted-line arrow

Chemistry

2 answers:

DENIUS [597]4 years ago

5 0

Answer:

moon's motion without gravity

Explanation:

The reason it's moon's motion without gravity is because if you take away earths gravitational pull it would simply go in the direction it last was, and the last direction it was, was where the dotted arrow is.

Svetradugi [14.3K]4 years ago

4 0

Answer: Option (C)

Explanation: The dotted line in the picture depicts the direction in which the moon would move without the action of earth's gravitational pull and angular momentum. It is because of these two above conditions, the moon orbits around the earth, maintaining a circular path. The interaction of the moon and the earth also produces tidal effect.

Thus, the correct answer is option (C).

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Which is the common ion when sodium sulfate is added to a solution of barium sulfate? na + ba 2+ so4 2 –?

aliya0001 [1]

The compound sodium sulfate is made of sodium ion and sulfate ion.

The formula can be written as Na₂SO₄.

The cation present in this compound is Na⁺ and the anion is SO₄²⁻.

The compound barium sulfate is made of barium ion and sulfate ion.

The formula can be written as BaSO₄.

This compound contains the cation Ba²⁺ and anion SO₄²⁻.

From the above , we can see that both the compounds have common anion which SO₄²⁻

So, the sulfate, SO₄²⁻ is the common ion when sodium sulfate is added to a solution of barium sulfate