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dusya [7]
4 years ago
10

Select the correct answer.

Chemistry
1 answer:
lubasha [3.4K]4 years ago
4 0

Answer:

D. S,p

Explanation:

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Name the three particles that make up an alom and describe the charge oleach atomo<br> particle
Mrrafil [7]

Answer:

Protons, neutrons, and electrons

Explanation:

protons- a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.

neutrons- a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.

electrons- a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.

5 0
3 years ago
An acorn falls from a tree and accelerates at 9.8 m/s2. It hits the ground in 0.67 s. What is the speed of the acorn when it hit
ivolga24 [154]
Acceleration means that while it's falling, its speed will increase by 9.8 m/s
every second.  That's the acceleration of everything that falls near the Earth's
surface, no matter how heavy or light the object is.

In 0.67 seconds, then, the speed of the acorn increases from zero to

                 (0.67 x 9.8) = <u>6.57 m/s</u> .
8 0
3 years ago
All of the statements regarding the symbol "ΔH" are correct except it
trapecia [35]

Answer: Option (D) is the correct answer.

Explanation:

Enthalpy is defined as the amount of energy needed or removed from a substance. It is represented by \Delta H.

Basically, it is the change in enthalpy and it represents the difference between the energy used in breaking bonds and the energy released in formation of bonds in a chemical reaction.

It is also known as heat of reaction. When value of \Delta H is positive then it means heat is absorbed in the chemical reaction.

When value of \Delta H is negative then it means that heat is released in the chemical reaction.

Whereas entropy means the measure of randomness. It is represented by \Delta S. We cannot calculate entropy but we can measure the change in entropy.

Thus, we can conclude that all of the statements regarding the symbol "ΔH" are correct except it that can be called entropy change.

6 0
3 years ago
An element has an atomic number of 30. How many protons and electrons are in a neutral atom of the element?
anygoal [31]
<span>30 protons, 30 electrons is your answer!:)</span>
7 0
3 years ago
Cual es el carbono de valencia libre
Ilia_Sergeevich [38]

Answer:

Explanation:

1) Se escoge la cadena con el mayor número de átomos de carbono. 2) Cuando hay dos cadenas posibles con el mismo número de átomos de carbono, se elige la que contenga el mayor número de triples ligaduras posibles. ... El átomo de carbono con la triple valencia libre se numera como 1.

8 0
3 years ago
Read 2 more answers
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