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erastova [34]
3 years ago
5

If a particular process is endothermic, the reverse process must be a (an) chemical change. exothermic process. endothermic proc

ess. isothermal process. none of the above
Chemistry
2 answers:
KatRina [158]3 years ago
7 0
If a particular process is endothermic, the reverse process must be an
exothermic process. This is because, when the endothermic process
occurs, the substance takes energy from its surroundings. The reverse
of this reaction would be for the substance to release energy into its
surrounding. Therefore, the answer is exothermic.
Sauron [17]3 years ago
4 0

Answer:

The correct answer is none of the above.

Explanation:

If a particular process is endothermic, there can be no assurance that the reverse process is exothermic, since some exothermic processes do not occur at certain pressures and temperatures. In general, the pressure and temperature conditions under which the reverse process is performed should be established.

Have a nice day!

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Please help, and if you could also give me a step by step that would be awesome!!
const2013 [10]

Answer:

4.4 g

Explanation:

Step 1: Write the balanced equation

Cu + 4 HNO₃ ⇒ Cu(NO₃)₂ + 2 NO₂ + 2 H₂O

Step 2: Calculate the moles corresponding to 3.2 L of NO₂ at STP

At standard temperature and pressure, 1 mole of NO₂ occupies 22.4 L.

3.2 L × 1 mol/22.4 L = 0.14 mol

Step 3: Calculate the moles of Cu needed to produce 0.14 moles of NO₂

The molar ratio of Cu to NO₂ is 1:2. The moles of Cu needed are 1/2 × 0.14 mol = 0.070 mol.

Step 4: Calculate the mass corresponding to 0.070 moles of Cu

The molar mass of Cu is 63.55 g/mol.

0.070 mol × 63.55 g/mol = 4.4 g

5 0
3 years ago
PLEASE HELP WILL MARK BRAINLIEST!!!
lina2011 [118]

Answer:

#1. E

#2. A

#3. D

#4. F

#5. C

Please give me brainliest

5 0
3 years ago
Calculate the number of different atoms in 0.2 mol ethene​
muminat

Answer:

1.204 × 10²³

Explanation:

The number of atoms in a mole is always 6.022 × 10²³, known as Avogadro's number or Avogadro's constant.

To convert moles to atoms, multiply the molar amount by Avogadro's number.

(6.022 × 10²³) × 0.2

         = 1.204 × 10²³

4 0
3 years ago
Mg + H2O → Mg(OH)2 + H2
Ilya [14]
Mg + 2️⃣H20 ➡️ Mg(OH)2 + H2
3 0
3 years ago
why does diving 30m below sea level affect our bodies more than being in a building 30m above sea level?
yaroslaw [1]
Imagine you are in a swimming pool 30m deep. Assuming you know that water is denser than air, you would know that the 30m of water above you will carry more weight, and press down on your body. Say you were in a swimming pool 60m deep, you would be sandwiched between 30m of water pressing down on you, and the upthrust created by the 30m of water below you.

In a building 30m up, the pressure will be regulated, as you are in a building. The floor will be strong enough to support the weight of the body, and the body will not recoil into itself.
4 0
4 years ago
Read 2 more answers
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