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Zolol [24]
2 years ago
6

Assuming an efficiency of 49.70%, calculate the actual yield of magnesium nitrate formed from 139.0 g of magnesium and excess co

pper(II) nitrate. Mg+Cu(NO3)2⟶Mg(NO3)2+Cu
Chemistry
1 answer:
liberstina [14]2 years ago
8 0

Answer:

221.5 g

Explanation:

if you want a step by step problem feel free to ask

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THE QUESTION:which letter in the diagram above represents a mountain range in the ocean floor  

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Pressure of an ideal gas ___________________, when number of particles ( moles ) of gas decreases.
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When a substance gains or loses energy, it’s _____ changes, or its _____ chafes. Theses two changes do ___happen at the time ; t
Veseljchak [2.6K]

Answer:

When a substance gains or loses energy, its <u>temperature</u> or <u>state</u> changes. These two changes do <u>not</u> happen with respect to time; the temperature remains <u>the same</u> until the change of <u>state</u> is complete.

Explanation:

This statement is about energy and change of the state of the matter. By gaining or losing energy, the physical state of the matter can change into one another. Melting, freezing, condensation, evaporation, sublimation, and deposition are the processes that support to change the physical state of the matter. Change in state and change in the matter do not happen at the same time. A substance gains or loses energy to reach a specific temperature and remains constant until the physical change of matter is completed.

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3 years ago
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Sonbull [250]

Answer:

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The covalent bond in Br₂ molecule dissociates to give two moles of bromine atoms. Therefore, it is a bond dissociation reaction.

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