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Vikki [24]
2 years ago
7

.........................helpplsplspls.....................

Chemistry
2 answers:
Rudik [331]2 years ago
7 0

Answer:

nah

Explanation:

ankoles [38]2 years ago
3 0

Answer:

Solid: Definite shape and volume, particles vibrate in place, non-compressible

Liquid: Non-compressible, definite volume, no definite shape, particles slide past each other

Gas: Compressible, no definite shape or volume, particles slide past each other

Explanation:

Hope this helps!

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Which is an example of an exothermic process?
Gwar [14]

1) Answer: A hot pack feels warm when chemicals in it combine.

Explanation: Reactions or process in which heat is released(produced) are known as exothermic reactions or process and those in which the heat is absorbed are known as endothermic reactions or process.

If a beaker feels cools when chemical in it react then it means the chemicals have absorbed the heat energy from its surroundings and so it is an example of an endothermic process.

A hot pack feels warm when chemicals in it combine means the energy is released in the chemical reaction and so it is an example of an exothermic process.

Plants use the sun's energy for photosynthesis which is a process of forming food for the plants. Energy acts as a reactant in this process and so it is an example of endothermic process.

Frying an egg by heating it on a stove is an example of an endothermic process as the heat is required to fry the egg.

So, the only exothermic process is the second one, "A hot pack feels warm when chemicals in it combine."

2) In the given equation, heat is written as a product means the heat is released in the equation and so it is an example of an exothermic reaction.

So, the correct choice is the last one " It is exothermic because energy is released."

5 0
2 years ago
Read 2 more answers
Use the drop-down menus to label each of the following changes P for physical change and C for the chemical change. The substanc
dlinn [17]

Answer:

Chemical, Physical, Chemical, Chemical, Physical!!

Explanation:

I just did it correctly.

6 0
2 years ago
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Which of the following is NOT an example of a fossil fuel?
Serhud [2]
Methanol is not an example of a fossil fuel.
5 0
3 years ago
n a gas-phase equilibrium mixture of SbCl5, SbCl3, and Cl2 at 500 K, pSbCl5 = 0.17 bar and pSbCl3 = 0.22 bar. Calculate the equi
Lorico [155]

Answer:

2.7 × 10⁻⁴ bar

Explanation:

Let's consider the following reaction at equilibrium.

SbCl₅(g) ⇄ SbCl₃(g) + Cl₂(g)

The pressure equilibrium constant (Kp) is 3.5 × 10⁻⁴. We can use these data and the partial pressures at equilibrium of SbCl₅ and SbCl₃, to find the partial pressure at equilibrium of Cl₂.

Kp = pSbCl₃ × pCl₂ / pSbCl₅

pCl₂ = Kp × pSbCl₅ / pSbCl₃

pCl₂ = 3.5 × 10⁻⁴ × 0.17 / 0.22

pCl₂ = 2.7 × 10⁻⁴ bar

7 0
3 years ago
What is the approximate tilt of the earth?<br> 18°<br> 23°<br> 45°<br> 60°
balandron [24]
The answer is 23.5° but I guess 23° is closest
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