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zhenek [66]
3 years ago
12

How is a model of an atom different from a real atom? A. A model of an atom is not as big as an actual atom. B. A model of an at

om is the same as a real atom. C. A model of an atom is more complex than a real atom. D. model of an atom is not as small as an actual atom.
Chemistry
1 answer:
tatyana61 [14]3 years ago
5 0
The option that would best contrast the real and the model atoms is letter "D. model of an atom is not as small as an actual atom". The size of an atom is said to be no more than 0.1 to 0.5 nanometers. The models are used to proper illustrate the atom's physical attributes. That is why, it needs to be bigger in size. 
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The energy required to break existing chemical bonds in reactants is called the ______ energy.
mixer [17]

The energy required to break existing chemical bonds in reactants is called the activation energy.

<h3>What is activation energy?</h3>

Activation energy in chemistry is the energy required to initiate a chemical reaction.

Chemical reactions involve the breaking of chemical bonds in substances called reactants to form new substances called products.

The energy required to break the bond in the existing reactants thus elevating these substances to a state of high activation is known as activation energy.

Therefore, it can be said that energy required to break existing chemical bonds in reactants is called the activation energy.

Learn more about activation energy at: brainly.com/question/11334504

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8 0
2 years ago
The lava from this volcano has built a mountain. The volcanic mountain is surrounded on all sides by ocean water so it is also
Nataliya [291]

Answer: An island.

"A piece of land surrounded by water"

4 0
3 years ago
What is the final volume of a gas (in liters) when the initial volume is 14.00 L at
8_murik_8 [283]

Answer:

V_2=1344L

Explanation:

Hello there!

In this case, since we have a problem about volume-pressure relationship, the idea here is to use the Boyle's law to calculate the final volume as shown below:

P_2V_2=P_1V_1\\\\V_2=\frac{P_2V_2}{P_1}\\

Then, we plug in the initial and final pressures and the initial volume to obtain:

V_2=\frac{14.00L*0.9600atm}{0.01000atm}\\\\V_2=1344L

Regards!

4 0
3 years ago
What do you mean by atomic number? ​
Allushta [10]

Answer:

Atomic number is the number of protons in an isotope or element.

Explanation: The atomic number is the same number of protons in an element or isotope and if said isotope is neutral than it is the same number of electrons.

Example: Atomic number = 19 Protons = 19 if neutral Electrons = 19

4 0
3 years ago
What happens when a neutral object is brought near a positive object?
snow_tiger [21]

Answer:

stick together like magnets

Explanation:

4 0
2 years ago
Read 2 more answers
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