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Mariana [72]
3 years ago
8

Which of the following statements is true about the structure of an atom?

Chemistry
2 answers:
natulia [17]3 years ago
6 0
C is the correct answer
-Dominant- [34]3 years ago
3 0

Answer:

C: The atomic nucleus contains most of the mass.

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Can someone help me please
Mashcka [7]
So for the first bit Swinging a ball around is like the moon going around the earth because instead of the earth and moon its you and the ball. For the second part of it the inward force is the earths gravity is pulling on it and since it has a greater mass the force is greater at closer distances. By the way the moon wants to move in a straight line. I hope that helps you out.
6 0
3 years ago
How many grams of solute are needed to order to prepare 100.00 mL of a 0.1000 M solution of a compound with a molecular weight o
Troyanec [42]

The grams of solute are required.

The mass of solute is 3.5 g

c =  Molarity = 0.1 M

M = Molar mass = 350 g/mol

V = Volume of solution = 100 mL = 0.1 L

n = Number of moles

m = Mass of solute

Molarity is given by

c=\dfrac{n}{V}\\\Rightarrow n=cV\\\Rightarrow n=0.1\times 0.1\\\Rightarrow n=0.01\ \text{moles}

Molar mass is given by

M=\dfrac{m}{n}\\\Rightarrow m=Mn\\\Rightarrow m=350\times 0.01\\\Rightarrow m=3.5\ \text{g}

The mass of solute is 3.5 g

Learn more:

brainly.com/question/16633651?referrer=searchResults

7 0
2 years ago
Read 2 more answers
7. The tendency of sound waves to bend when they pass from one medium to a different medium is known as A. refraction C. resonan
ahrayia [7]

The tendency of sound waves to bend when they pass from one medium to a different medium is known a refraction.

<h3>What is refraction ?</h3>

In diffraction, a sound wave is bent or stretched out in a single medium where the sound speed remains constant. Refraction is a crucial instance in which sound waves arc or diffuse. Due to variations in the wave's speed, a sound wave bends in this occurrence.

A wave bends as it travels along the edge of an object or through an aperture. It is referred to as diffraction. When a wave transitions from one medium to another at an angle, it also bends. It's known as refraction.

Thus, The option A is correct.

To learn more about refraction follow the link below;

brainly.com/question/2660868

#SPJ1

7 0
1 year ago
The expression CaCO3 → CaO + CO2 is an example of a
sattari [20]
It is a decomposition 'reaction
8 0
4 years ago
Read 2 more answers
Consider the reaction below.
Luba_88 [7]
Hey there!

I attached a screenshot of my chemistry notes from this year on equilibrium constants in particular. Feel free to reference this in the future if you wish. 

Based on the information in my attachment, you could construct your constant like this:

K_{eq} =  \frac{[CaO][CO_{2}]}{[CaCO_{3}]}

I don't think it matters which order your reactants or products are in as long as you have them on the top and bottom where they need to be, so your answer will be B. 

Hope this helped you out! :-)

4 0
3 years ago
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