2 years ago

Why is it necessary to use models to study submicroscopic objects such as atoms and molecules

1 answer:

6 0

Answer:

It is necessary to use models to study sub- microscopic objects such as atoms and molecules because they are too small to be seen.

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marysya [2.9K]

Answer:

964ug

Explanation:

The problem here involves converting from one unit to another.

We are to convert from ounces to micrograms.

1ug = 1 x 10⁻⁶g

1oz = 28.35g

So we first convert to grams from oz then take to ug:

Solving:

1oz = 28.35g

3.4 x 10⁻⁵oz will then give 3.4 x 10⁻⁵ x 28.35 = 9.64 x 10⁻⁴g

So;

1 x 10⁻⁶g = 1ug

9.64 x 10⁻⁴g will give $\frac{9.64 x 10^{-4} }{1 x 10^{-6} }$ = 9.64 x 10²ug or 964ug

8 0

2 years ago

tatiyna

Mass percent= grams solute/ grams of solution x 100

Mass Percent= (50/ 150)x100= 33.3%

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2 years ago

Alexeev081 [22]

Bdjdisisididiieddiidid

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2 years ago

Molodets [167]

The answer would be c as the cart is not in motion therefor ruling out kinetic and it is completely at rest making all of it energy potential

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3 years ago

Lunna [17]

Answer:

Six electrons.

Explanation:

A carbon atom has six protons, so it must have six electrons.

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2 years ago