Decomposition reactions involve the breaking down of compounds to form smaller molecules or elements.
Thus, magnesium nitride will decompose to form elemental magnesium and nitrogen gas
Mg₃N₂ → Mg + N₂
The reaction now needs to be balanced, such that the number of Mg and N atoms in the reactants is equal to that of the products.
Balanced reaction:
Mg₃N₂ → 3Mg + N₂
Ans (D)
Answer:
Volume of flask = 29.134 cm³
Explanation:
Mass of water = mass of filled stoppered flask - mass of empty stoppered flask.
Mass of water = 65.858 - 36.724 = 29.134 g
Density of water = 1 g/cm³
Volume = mass/ density
Volumeof water = 29.134 g/ 1g/cm³ = 29.134cm³
Therefore, volume of flask = 29.134 cm³
The correct answer among the choices given is the first option. The statement that best describes the energy change that takes place during deposition is that h<span>eat energy is released by the substance.</span> Deposition is a phase change from the gas phase into a solid form or the most condensed form.
Answer:
coal and oil come from the remains of dead animals.