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Svet_ta [14]
4 years ago
10

What interacted directly with the photographic plates to cause images in Becquerel’s experiment?

Chemistry
1 answer:
Anna [14]4 years ago
7 0
Answer: A. uranium salt

Becquerel made a conclusion that it was the uranium that causes the images found in the photographic plates. Though his theory was disproved during the first time,he continued to develop it. Then, it is through this experiment that Becquerel discovered radioactivity.

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A 600 dm3 sample of hydrogen gas was collected contain at 950mm of hg pressure at room temperature.
STALIN [3.7K]

The new volume of the hydrogen gas at s.t.p., V_{2} = 750 dm³

<h3>What is the molar volume of gas at s.t.p?</h3>

The molar volume of a gas at s.t.p. is 22.4 dm³.

The change in volume gases at different temperatures and pressures are given by the general gas equation given below:

  • \frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}

V_{1} = 600 dm³

P_{1} = 950mmHg

T_{1}= 273 K

The new volume of the hydrogen gas at s.t.p., V_{2} is calculated thus:

V_{2} = (950 x 600 x 273)/(760 x 273) = 750 dm³

In conclusion, the volume of a gas changes with temperature and pressure changes.

Learn more about gas volume at: brainly.com/question/27100414

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2 years ago
What happens to the energy level of particles when melting occurs
Alenkinab [10]

Answer:

Melting occurs when a solid is heated and turns to liquid. The particles in a solid gain enough energy to overcome the bonding forces holding them firmly in place. Typically, during melting, the particles start to move about, staying close to their neighboring particles, then move more freely.

Explanation:

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4 years ago
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Explanation:

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HAVE A GOOD DAY!

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3 years ago
Gerry is looking at an unknown element. He knows it has 1 valence electron and is highly reactive with water. What group is the
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because they have just one valance electron, group 1 elements are very reactiv.

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How does a scientist critique another scientist’s conclusion?
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<span>by performing more experiments</span>
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