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Svet_ta [14]
3 years ago
10

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

Chemistry
1 answer:
Anna [14]3 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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when sulfur reacts with magnesium it forms magnesium sulfide. what is the chager on the sulfur atom in magnesium sulfide?
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When sulfur reacts with magnesium it forms magnesium sulfide,he chage on the sulfur atom in magnesium sulfide is -2
5 0
3 years ago
What can you say about an atom with 4 protons, 2 neutrons, and 5 electrons?
iren2701 [21]

Explanation:

This is a neutral beryllium atom

5 0
3 years ago
A sample of a compound contains 60.0g C and 5.05 H it’s molar mass is 78.12g what is the compounds molecular formula
Svetach [21]
The compound's molecular formula is C6H6
6 0
3 years ago
Sewage and industrial pollutants dumped into a body of water can reduce the dissolved oxygen concentration and adversely affect
MArishka [77]

Answer:

FALSE

Since 0.385 < 0.526, the value for week 3 is accepted.

Explanation:

Qexp = (|Xq - Xₙ₋₁|)/w

where Xq is the suspected outlier; Xₙ₋₁ is the next nearest data point; w is the range of data

First, the data are arranged in decreasing order, from highest to lowest:

3. 5.6

2. 5.1

8. 5.1

1. 4.9

6. 4.9

5. 4.7

7. 4.5

4. 4.3

Xq = 5.6; Xₙ₋₁ = 5.1; w = 5.6 - 4.3 = 1.3

Qexp = (|5.6 - 5.1|)/1.3 = 0.385

From tables, at 95% confidence level, for n = 8, Qcrit = 0.526

Since 0.385 < 0.526, the value for week 3 is accepted.

7 0
3 years ago
Liquids and solids are referred to as "condensed phases" because the attractive forces cause molecules to become stationary. lea
Savatey [412]

Answer:

leave little space between the molecules.

Explanation:

Matter is made up of small particles called molecules. These molecules present in matter are arranged inside its bulk.

In liquids and solids, the molecules are arranged very close together in such a way that there is only a little space between them. This is why liquids and solids are referred to as "condensed phases".

They are quite unlike gases where there is a lot of space between gas molecules.

7 0
2 years ago
Read 2 more answers
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