Answer:
Element
Explanation:
Each different kind of atom represents an atom. Elements like atoms are considered to be distinct substances that cannot be split into simpler substances. Such substances are known to be made up of just one kind of atom.
Like an atom, elements are made up of protons, neutrons and electrons. Both the protons and neutrons are found in the nucleus of the atom.
So in order to answer this we need the number of moles of oxygen and the right stoichiometry.
The balanced reaction should be 2HgO --> 2Hg + O2, therefore 2 moles of mercury are produced for every one mole of oxygen gas. Since we have the mass of O2 we can calculate the moles as moles = mass/RMM where RMM is the relative molecular mass of O2, which is 32 g/mol. Therefore the number of moles = 125/16 = 3.9 mol.
Since 2 moles of Hg are produced for every one mole of O2, the number of moles of Hg = 3.9*2 = 7.8 mol.
Answer:
HCOOH, H₃O⁺, and HCOO⁻
Explanation:
HCOOH is the major solute.
However, HCOOH is a weak acid. It dissociates slightly in aqueous solution.
HCOOH + H₂O ⇌ HCOO⁻ + H₃O⁺
Thus, two other solute particles are HCOO⁻ and H₃O⁺.
Answer: Los principales tipos de molino de viento, y sus finalidades, son: Turbinas de viento; la finalidad es lograr transformar la energía eólica en energía eléctrica. ... Molinos de drenaje; la finalidad de estos es servir como una bomba y desplazar fluidos.
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Explanation:
