Which element reacts spontaneously with 1.0 M HCl at room temp? 1. copper 2. gold 3. silver 4. zinc

What is the approximate weight of a 20-kg cannonball on earth

A 108 49in source emits a 633-kev gamma photon and a 606-kev internal-conversion electron from the k shell. what is the binding energy of the electron in the k shell?

Which describes a step in the process of forming an ionic bond? A metal atom loses electrons and becomes a positive ion. A metal atom gains electrons and becomes a negative ion. A nonmetal atom loses electrons and becomes a negative ion.

Potential energy is energy of blank

What is difference between organic chemistry nd inorganic chemistry?

Which option is true about the effect of polarity on solubility? Select all that apply. Polar solutes dissolve better in water than in oil. Polar solutes have the greatest solubility in nonpolar solvents.

Which change results in a release of energy? 1. The melting of H₂O (S) 2. The boiling of water (L) 3. The evaporation of H₂0 (L) 4. The condensation of H₂0 (G)

What changes nitrogen gas in the air to nitrogen compounds that fall to the ground

Which element has an isotope mass number of 32 and is used as an ecological tracer?

Which laws can be combined to form the ideal gas law? Boyle's law and Charles's law Gay-Lussac's law and Avogadro's law Charles's law, Avogadro's law, and Boyle's law Dalton's law, Gay-Lussac's law, and Avogadro's law