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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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klasskru [66]
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6 0
4 years ago
In a titration of 50 ML of 0.20m NaOH is used to neutralize 10.0 ML of HCL. Calculate the molarity of the acid
Svet_ta [14]

Answer:

1M

Explanation:

First, let us write a balanced equation for the reaction. This is illustrated below:

NaOH + HCl —> NaCl + H2O

From the equation above,

nA (mole of acid) = 1

nB (mole of the base) = 1

Data obtained from the question include:

Vb (volume of base) = 50mL

Mb (Molarity of base) = 0.2M

Va (volume of acid) = 10mL

Ma (Molarity of acid) =?

Using MaVa/MbVb = nA/nB, we can calculate the molarity of the acid as follow:

Ma x 10/0.2 x 50 = 1

Cross multiply to express in linear form

Ma x 10 = 0.2 x 50

Divide both side by 10

Ma = (0.2 x 50)/10

Ma = 1M

The molarity of the acid is 1M

3 0
3 years ago
Determine the molecular formula of decene, which has an empirical formula of CH2 and a molar mass of 140.27 g/mol.
mart [117]

Answer:

Molecular formula = C₁₀H₂₀

Explanation:

Given data:

Empirical formula = CH₂

Molar mass = 140.27 g/mol

Molecular formula = ?

Solution:

Molecular formula = n (empirical formula)

n = molar mass of compound / empirical formula mass

Now we will calculate the empirical formula mass.

CH₂ = 12 × 1 + 1× 2

CH₂ = 12 +2

CH₂ = 14  

n = 140.27 / 14

n = 1 0

Molecular formula = n (empirical formula)

Molecular formula = 10 (CH₂)

Molecular formula = C₁₀H₂₀

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3 years ago
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8 0
3 years ago
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The energy powering the movements of molecules is referred to as the ______ of the system.
bagirrra123 [75]
The answer to the question asked  above is heat energy<span> .


</span><span>The energy powering the movements of molecules is referred to as the heat energy of the system.</span>

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3 years ago
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