[denispopescu0]

A mixture of magnesium and magnesium oxide with a mass of 65g reacted with concentrated nitric acid after the reaction gave off a brown gas with a volume of 56l (c.n) Determines the mass parts of magnesium and magnesium oxide in the initial mixture. Please

[billnotgatez]

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[denispopescu0]

please i need this fast

[sharbeldam]

was it really that hard to understand the mod's post?
and now you are basically saying you need help in an exam... which is worse.

Is it so hard to comply to the rules of this site?

[AWK]

This is a typical task in general chemistry textbooks. Each such task begins with writing balanced reaction equations for each component separately, and on the basis of the stoichiometry of the equations, algebraic equations are prepared. At the level of general chemistry, the task is solved even without a calculator.
But at the level of normal chemistry, the task is unrealistic for a number of reasons: Mg reacts with HNO₃ differently than, for example, Cu; the task does not take into account the NO₂ ::equil::N₂O₄ balance (this is only a simplification that does not take into account the reduction of nitrogen oxides); under STP conditions, N₂O₄ is a volatile liquid. Fortunately, the problem can be solved assuming that only NO₂ or only N₂O₄ is formed.