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My name is Ann [436]
3 years ago
13

Which planet has a thick atmosphere, which is mainly composed of carbon dioxide? A. Mars B. Mercury C. Earth D. Venus

Chemistry
2 answers:
Nady [450]3 years ago
7 0
The answer is D.) Venus
salantis [7]3 years ago
3 0
I think is a mars because there is no oxygen any earth but i think is mars 
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Gwar [14]

Answer:

A

Explanation:

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3 years ago
Many classic experiments have given us indirect evidence of the nature of the atom. Which of the experiments below did not give
taurus [48]

The Rutherford experiment proved the Thomson “plum-pudding” model of the atom to be essentially correct did not give the results described and is denoted as option A.

<h3>What is Thomson “plum-pudding” model?</h3>

This model was proposed by J.J Thomson in which referred an atom as a sphere of positive charge, and negatively charged electrons are embedded in it to balance the total positive charge.

This model was incorrect and the Rutherford atomic model was adopted in which he described the electrons orbits about a tiny positive nucleus.

The nucleus contains protons and neutrons instead thereby making it the correct choice.

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The options include the following:

a.The Rutherford experiment proved the Thomson “plum-pudding” model of the atom to be essentially correct.

b.The Rutherford experiment was useful in determining the nuclear charge on the atom.

c.Milikan’s oil-drop experiment showed that the charge on any particle was a simple multiple of the charge on the electron.

d.The electric discharge tube proved that electrons have a negative charge

4 0
2 years ago
What are the hydrogen bonding atoms in melatonin?
nydimaria [60]

The hydrogen bonding atoms in melatonin are phospholipids and cholesterol.

<h3>What is Hydrogen bonding?</h3>

This is the type of interaction which involves a hydrogen atom being covalently bound to a more electronegative "donor".

Melatonin controls sleep-wake cycle and has phospholipids and cholesterol which have high affinity for hydrogen bonding.

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6 0
2 years ago
Write the number in scientific notation 1123<br>​
Anastasy [175]
1.123 * 10^3 thatsssss it
4 0
4 years ago
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enot [183]

Answer:

1. 39 J/g°C

Explanation:

4 0
3 years ago
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