Explain the change in mass that occurs when the following substances are separately heated in open crucibles
(a) Copper metal
(b) Copper (II) nitrate

Respuesta :

Answer:

your answer is (a) Copper Metal

Explanation:

  • Mass increase-Copper metals incorporated with oxygen forming copper oxide.
  • Mass reduction-Copper II Nitrate exists deteriorated by heat forming copper oxide, Nitrogen IV Oxide, and oxygen gases, the gases escape.

What is Copper?

Copper exists as a chemical element with the symbol Cu and atomic number 29. It exists as a soft, malleable, and ductile metal with very increased thermal and electrical conductivity. A freshly revealed surface of pure copper contains a pinkish-orange color.

Copper(II) nitrate represents any component of the family of inorganic compounds with the formula Cu(NO₃)₂ₓ. The hydrates exist in blue solids. Anhydrous copper nitrate includes blue-green crystals and sublimes in a vacuum at 150-200 °C. Familiar hydrates exist the hemipentahydrate and trihydrate.

Mass exists the quantity of matter in a physical body. It exists even a measure of the body's inertia, the resistance to acceleration (difference of velocity) when a net force exists applied. An object's mass also defines the strength of its gravitational attraction to other bodies.

  • Mass increase-Copper metals incorporated with oxygen forming copper oxide.
  • Mass reduction-Copper II Nitrate exists deteriorated by heat forming copper oxide, Nitrogen IV Oxide, and oxygen gases, the gases escape.

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