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3 years ago

5

The charge of single electron

1 answer:

irga5000 [103]3 years ago

8 0

The answer is B.

plz mark me as brainliest. i really need it.

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Mg(OH)2 + HCl --> MgCl2 + H2O

Rashid [163]

I am guessing you want us to balance this equation so.
To balance, we add another molecule of HCl to the left side of the equation and another molecule of water (H20) to the right side of the equation to give:

<span>Mg(OH)2 + 2HCl = MgCl2 + 2H20 </span>

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3 years ago

Which of the following shows the valency of 1?

Oliga [24]

$\huge \bf༆ Answer ༄$

The element having valency of 1 is ~

Sodium (Na)

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2 years ago

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Alex777 [14]

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2 years ago

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2 years ago

What is the value for AG at 5000 K if AH = -220 kJ/mol and S= -0.05 kJ/(mol-K)?

Serhud [2]

Answer:

C. 30 kJ

Explanation:

Hello there!

In this case, in agreement to the thermodynamic definition of the Gibbs free energy, in terms of enthalpy of entropy:

$\Delta G= \Delta H-T\Delta S$

It is possible to calculate the required G by plugging in the given entropy and enthalpy as shown below:

$\Delta G=-220kJ/mol-5000K*-0.05kJ/mol*K\\\\\Delta G=30kJ/mol$

Therefore, the answer is C. 30 kJ .

Best regards!

4 0

2 years ago