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Alchen [17]
3 years ago
11

An element is a pure substance that is defined by the number of protons in which is defined as the atomic number

Chemistry
1 answer:
Pani-rosa [81]3 years ago
8 0
If this is a true or false question then the answer is true.
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____ HBr + ____ Mg(OH)2 ---> ____ MgBr2 + ____ H2O
swat32
Hello Camkirkland,
I think that you are trying to balance this equation.
In order to balance a chemical equation, the numbers of atoms of each element must be equal on both sides of the equation.

In this particular equation, the answer would be (2) HBr + (1) Mg(OH)2 ---> (1) MgBr2 + (2) H2O.

Hope this answers your question!
4 0
3 years ago
Draw a picture of the moon and sun illustrating the full moon phrase
jek_recluse [69]

Hi Sydney!

I can't draw in this question, but there is a picture showing this phase for you to follow when you draw it.

Hope This Helps :)

6 0
3 years ago
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For the reaction 2NH3(g) + 2O2(g)N2O(g) + 3H2O(l) H° = -683.1 kJ and S° = -365.6 J/K The standard free energy change for the rea
BlackZzzverrR [31]

Answer:

\Delta G^{0} = -457.9 kJ and reaction is product favored.

Explanation:

The given reaction is associated with 2 moles of NH_{3}

Standard free energy change of the reaction (\Delta G^{0}) is given as:

           \Delta G^{0}=\Delta H^{0}-T\Delta S^{0}   , where T represents temperature in kelvin scale

So, \Delta G^{0}=(-683.1\times 10^{3})J-(273K\times -365.6J/K)=-583291.2J

So, for the reaction of 1.57 moles of NH_{3}, \Delta G^{0}=(\frac{1.57}{2})\times -583291.2J=-457883.592J=-457.9kJ

As, \Delta G^{0} is negative therefore reaction is product favored under standard condition.

6 0
3 years ago
What is the Relative Formula Mass of Potassium bromide?
Aleonysh [2.5K]
The relative formua for Potassium bromide is Kbr
6 0
3 years ago
The first step in using time more efficiently is
REY [17]
The answer is studying how people use time.

Hope this helps!
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3 years ago
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