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rosijanka [135]
3 years ago
10

What was Antoine Henri Becquerel studying when he discovered radioactivity?

Chemistry
1 answer:
ladessa [460]3 years ago
3 0

Answer:

Becquerel was studying the properties of X-Rays when he discovered radioactivity. His original theory was that X- Rays arose from uranium absorbing...

Explanation:

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COAL

Explanation:

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in the future, clean energy sources, such as solar power, may be used to create hydrogen fuel true false
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Uranium in the isotope below had 140 nutrons​
Brut [27]

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It has 140 neutrons because Mass number= No of protons + no of neutrons

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I need help with this definitions!!!
abruzzese [7]
Rock cycle - a process in which a rock forms, changes from one type of rock to another, forms again by processes on and in the Earth.

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3 0
3 years ago
Determine the boiling point of a 3.70 m solution of phenol in benzene. Benzene has a boiling point of 80.1°C and a boiling point
xeze [42]

Answer: The boiling point of a 3.70 m solution of phenol in benzene is 89.5^0C

Explanation:

Elevation in boiling point:

\Delta T_b=i\times k_b\times m

where,

\Delta T_b = change in boiling point

i= vant hoff factor = 1 (for benzene which is a non electrolyte )

k_b = boiling point constant = 2.53^0C/kgmol

m = molality = 3.70

T_{solution}-T_{solvent}=i\times k_b\times m

T_{solution}-80.1^0C=1\times 2.53\times 3.70

T_{solution}=89.5^0C

Thus  the boiling point of a 3.70 m solution of phenol in benzene is 89.5^0C

8 0
3 years ago
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