Answer : The number of moles of sulfur needed to oxidize will be, 3 moles
Solution : Given,
Moles of zinc = 3 moles
The balanced reaction will be,
By the stoichiometry, 1 mole of ion react with the 1 mole of to give 1 mole of zinc sulfide.
From the balanced reaction, we conclude that
As, 1 mole of zinc react with 1 mole of sulfur
So, 3 moles if zinc react with 3 moles of sulfur
Hence, the number of moles of sulfur needed to oxidize will be, 3 moles
Answer: The answer is C
covalent bonds have a lower melting and boiling point
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Answer:
Mercury fulminate is very sensitive to shock, friction, and sparks. ... put mercury fulminate into blasting caps for detonating dynamite.
Explanation:
Answer : The mass of potassium phosphate needed will be 3.98 grams.
Explanation : Given,
Molarity of potassium phosphate = 0.75 M = 0.75 mole/L
Molar mass of potassium phosphate = 212.27 g/mole
Volume of solution = 25.0 mL = 0.025 L (conversion used : 1 L = 1000 mL)
Molarity : It is defined as the number of moles of solute present in one liter of solution.
In this problem solute is, potassium phosphate.
Formula used :
Now put all the given values in this formula, we get:
Therefore, the mass of potassium phosphate needed will be 3.98 grams.
If there is no atmosphere on the planet or the heavenly body on which we are the observers, then there would be no scattering of the sun's light and hence, the sky would aappear black. For example, if we are on the moon, the sky appears black ,unlike on earth(where it appears blue) because there is no atmosphere on moon.