3 years ago

Which atomic model proposed that electrons move in specific orbits around the nucleus of an atom?

Chemistry

1 answer:

kakasveta [241]3 years ago

6 0

The Bohr Model, which was proposed by Niels Bohr in 1913

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Explanation:

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3 years ago

A _____ (released, absorbed, taken, +,-) ΔH means that energy is______ (released, absorbed, taken, +,-) from a reaction.

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A __"-"___ ΔH means that energy is_released_

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4 years ago

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3 years ago

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c) water vapor is less dense

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3 years ago

The escape velocity from Earth's surface is 1.12 x 104 meters per second. At this speed, how many kilometers would a

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Answer:

2016 km

Explanation:

The escape velocity from Earth's surface is $1.12\times 10^4\ m/s$ .

We need to find how many kilometers would a rocket travel in three minutes. It is a concept based on the definition of speed of an object.

Speed = distance per unit time

1 hour = 60 minutes

⇒ 3 minutes = 0.05 hour

1 m/s = 3.6 km/h

11200 m/s = 40320 km/h

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$\text{distance}, d=v\times t\\\\d=40320\ km/h \times 0.05\ h\\\\d=2016\ km$

Hence, a rocket will travel 2016 km in 3 minutes.

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3 years ago