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3 years ago

Select the correct answer.

Chemistry

2 answers:

Alex3 years ago

7 0

no:A

is a correct answer

Nina [5.8K]3 years ago

7 0

Answer: A

business want to bring quality content to their customers in order to appear more professional, that way they seem trustworthy so more customers buy from them.

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Thank uuuu so much!!!!!

kow [346]

Answer:

A. 0.83

Explanation:

Hopefully this helps!

7 0

3 years ago

The standard free energy change for a reaction in an electrolytic cell is always:_________

sattari [20]

Answer: The standard free energy change for a reaction in an electrolytic cell is always positive.

Explanation:

Electrolytic cells use electric currents to drive a non-spontaneous reaction forward.

Relation of standard free energy change and emf of cell

$\Delta G^o=-nFE^0_{cell}$

where,

$\Delta G^o$ = standard free energy change

n= no of electrons gained or lost

F= faraday's constant

$E^0_{cell}$ = standard emf

$E^0_{cell}$ = standard emf = -ve , for non spontaneous reaction

Thus $\Delta G^o=(-ve)(-ve)=+ve$

Thus standard free energy change for a reaction in an electrolytic cell is always positive.

8 0

3 years ago

How is the mass of 1 mole of an element determined? O A. It is equal to the atomic mass times Avogadro's number. O B. It is the

evablogger [386]

Answer:

Avogadro's number is the number of particles in one mole of anything. In this context, it is the number of atoms in one mole of an element. It's easy to find the mass of a single atom using Avogadro's number. Simply divide the relative atomic mass of the element by Avogadro's number to get the answer in grams.

4 0

2 years ago

What would be an evidence of release in energy?

shusha [124]

A heater letting of heat is an example of release of energy. Please comment if you have any questions about my answer.<span />

6 0

3 years ago

Combustion of coal releases sulfur dioxide into the atmosphere. The following process converts this gas into sulfuric acid, a co

Usimov [2.4K]

Answer:

$m=7.07gH_{2}SO_{4}$