3 years ago

Explain why chlorine forms a -1 ion, but sulfur forms a -2 ion.

1 answer:

8 0

For a chlorine atom to become a chloride ion, it must gain an electron.The chloride ion has a negative charge and is written as Cl-. Chlorine gains an electron because it has seven valence electrons, and to be a full octet, it gains an electron.

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Two identical balls collide one was initially at rest. after the collision one of the balls has a velocity of 3 m/s south. the o

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Two identical balls collide head on. The initial velocity of one is 0.75 m/s east, while that of the other one is 0.43 m/s west.

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3 years ago

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Yanka [14]

True.

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3 years ago

Describe what happens to the particles of water when it boils.

Nezavi [6.7K]

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The liquid turns to a gas.

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3 years ago

A cow wanders 30 m North, turns 22 degrees right of its original path, and wanders another 40 m. Find its total displacement.

scoundrel [369]

Answer:OB=58.3m

Explanation:

So here cow wanders 30m in north and turns 22 degrees in right side and moves 40m more, as shown in figure given.

now take the starting point as a origin such that cow moves in x-y co-ordinate axis.

As shown in figure length OA is the length when cow moves in north or y direction. Later she takes 22 degrees turn to right and moves 40m more.

So the final displacement is the length of cow from the origin that is length OB.

now co-ordinates of B are [40cos22°,40sin22°+30] i.e [37.084,44.984]

now displacement of cow= length of OB