1.) Gas given off
2.) precipitate formed
3.) large amount of heat given off
4.) Color change
Answer:
When the concentration is higher, more hydrogen ions are near the Zn atoms at any given time. This allows for more Zn atoms to be ionized and dissolved into the solution per second.
Explanation:
Answer:
Answer is A... Melting and freezing
Answer:
11.29 kJ (to 4 sf)
Explanation:
Here, ammonia is the limiting reactant.
For the reaction to occur once, 4 moles of ammonia must be consumed.
Thus means that the reaction can occur 0.1579/4=0.039475 times.
Therefore, (286)(0.039475) = 11.29 kJ (to 4 sf)
A polyatomic ion composed of an element, usually a nonmetal, bonded to one or more oxygen atoms. ... Explain what determines the ratio of positive ions to negative ions in an ionic crystal. The ratio is determined by the number of electerons transferred from the metal atom to the nonmetal atom.