How are theres over 2,500 different minerals why?
1 answer:
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Answer:
B) K2X
Explanation:
In an uncharged compound, the total oxidation state must be zero. The oxidation state of the calcium is +2, thus we get the following formula, where x is the oxidation state of the polyatomic ion X:
Also, it is known that potassium has an oxidation state of +1. Since the new compound also has a total oxidation state equal to zero, we get the following equation, where k is the number of K atoms:
That's how it is found that the compumd consists of 2 K+ ions and one X ion.
Answer: 69.72 kg of cryolite will be produced.
Explanation:
The balanced chemical equation is:
To calculate the moles, we use the equation:
moles of =
moles of =
moles of =
As 1 mole of reacts with 6 moles of
166 moles of reacts with =
moles of
As 1 mole of reacts with 12 moles of
166 moles of reacts with =
moles of
Thus is the limiting reagent.
As 1 mole of produces = 2 moles of cryolite
166 moles of reacts with =
moles of cryolite
Mass of cryolite =
Thus 69.72 kg of cryolite will be produced.