Chemistry College

URGENT PLZ HELP

Which of the following statements is true?

a. In an endothermic process heat is transferred from the surroundings to the
system.

b. In an exothermic process heat is transferred from the surroundings to the
system.

C. The surroundings will feel cooler in an exothermic process.

d. The surroundings will feel warmer in an endothermic process.

Answers

Answer 1

Answer:

A.

Explanation:

In an endothermic reaction heat is applied.

Answer 2

In an endothermic process, heat is transferred from the surroundings to the system.

What are endothermic and exothermic processes?

An exothermic process is one that gives off heat. This heat is transferred to the surroundings. An endothermic process is one in which heat has to be supplied to the system from the surroundings.

The endothermic process is a term that describes a reaction where the system absorbs the energy from its surrounding in the form of heat. A few examples of the endothermic process are photosynthesis, evaporating liquids, melting ice, etc.

The exothermic reaction is the opposite of an endothermic reaction. It releases energy by light or heat to its surrounding. A few examples are neutralization, burning of a substance, reactions of fuels, etc.

Hence, option A is the correct answer.

Learn more about endothermic and exothermic processes here:

https://brainly.com/question/4345448

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Related Questions

which wet land is known for the large trees in the water known as bottomland hardwoods?

A. Central Texas
B.South Texas
C. East texas

Answers

C, cause Bottomland hardwoods are the dominate wetlands in East Texas.

What is neutralisation reaction? Give an example with reaction involved. State two uses of neutralisation reaction in everyday life.​

Answers

Answer:

neutralization reaction is when an acid and a base react to form water and salt and involves the combination of hydrogen ions and hydroxyl ions to generate water. The neutralization of a strong acid and strong base has a pH equal to 7.

What class of chemicals is responsible for ozone depletion?

Answers

Chlorofluorocarbons (CFCs) and other halogenated ozone-depleting substances (ODS) are mainly responsible for man-made chemical ozone depletion.

how many atoms of carbon are in a diamond with a mass of 0.568 g?

Answers

Answer:

There are 2.85 x 10^22 atoms of carbon in a diamond with a mass of 0.568 g.

Hope this helps! :)

Which of the following compounds is least soluble in water?
A) iron (III) chloride
B) ammonium acetate
C) sodium hydroxide
D) magnesium carbonate

Answers

Answer:

B

Explanation:

What is created when an acid is mixed with a base?

Answers

Answer:

If you mix equal amounts of a strong acid and a strong base, the two chemicals essentially cancel each other out and produce a salt and water. Mixing equal amounts of a strong acid with a strong base also produces a neutral pH (pH = 7) solution.

Methane and sulfur react to produce carbon disulfide (CS₂), a liquid often used in the production of cellophane.

2CH₄ + S₈ --> 2CS₂ + 4H₂S

Calculate the moles of H₂S produced when 2.25 mol S₈ is used.

Answers

Answer:

9 moles

Explanation:

The balanced chemical equation provided in this question is as follows:

2CH₄ + S₈ → 2CS₂ + 4H₂S

In accordance to the above balanced equation, 1 mole of sulphur (S8) produces 4 moles of hydrogen sulfide (H2S).

Therefore, if 2.25mol of S8 is used, 2.25 × 4 = 9 mol

9 moles of H2S is produced.

plz, help me I'm so confused!

(this is also science)

Answers

Answer:

Well, there is no photo...

Explanation:

Why do atoms connect to eachother?

Answers

Answer:

To keep from falling apart

Explanation:

To keep from falling apart
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