The alpha particles that were fired at the gold foil were positively charged. ... These experiments led Rutherford to describe the atom as containing mostly empty space, with a very small, dense, positively charged nucleus at the center, which contained most of the mass of the atom, with the electrons orbiting the nucleus.

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3 0

2 years ago

In an experiment, two unknown compounds (one an alcohol and the other an ether) of equal molecular mass were dissolved in water.

-BARSIC- [3]

Answer: B. It is an ether because it is unable to to form a hydrogen bond, so it is less soluble than water

Explanation: Alcohols $(ROH)$ are more soluble in water as they can form hydrogen bonding with water whereas ethers $(ROR)$ are less soluble as they do not form hydrogen bonds with water.

For formation of hydrogen bond, the electronegative atom (F, Oand N) must be attached to hydrogen and in ethers (ROR), there is no hydrogen directly attached to electronegative oxygen atom, thus are less soluble in water.

4 0

3 years ago

Describe three skills people use to conduct scientific investigations

Kipish [7]

Observations, surveys, and models.

6 0

3 years ago

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Kaylis [27]

Answer:

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Explanation:

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4 0

2 years ago