Electrolytes conduct electricity because they produce + and – ions in water
C6H12O6 and CH3CH2OH organic no ions
C6H12O6 and HCl sugar and hydrochloric acid
NaOH and HCl yields Na+1 ion and Cl-1 ion to conduct electricity
NaOH and CH3CH2OH
Hope this helps. :)
Answer:
7.93 * 10^-19 J
Explanation:
Kinetic energy of the electrons = 1/2 mv^2
Hence;
KE = 1/2 * 9.11×10^−31 (9.57×10^5)^2
KE = 4.975 * 10^-23 J
Energy of incident light = 476 * 10^3/6 * 10^23 = 79.3 * 10^-20 J
From Einstein's photoelectric equation;
KE = E - W
Where;
KE = kinetic energy of ejected electron
E = energy of incident photon
W = Work function of the metal
Hence;
W = E - KE
W = 7.93 * 10^-19 - 4.975 * 10^-23
W = 7.93 * 10^-19 J
Answer:
In the calorimeter, water is the <u>exothermic</u>. The salt LiCI, which will dissolve, is the <u>endothermic</u>. The final temperature of the water after the dissolution of LiCI was <u>lower</u> than the initial temperature, meaning the process is <u>exothermic</u>. In the microscopic view of the disspolution of LiCI, water molecules were seen to move <u>slowly</u> as they <u>gained </u>energy.
Explanation:
Exothermic is a process in which heat is released during the process. Endothermic reactions absorbs heat from surrounding during a chemical process. The dissolution of salt into water is an exothermic reaction. During this process heat is release and water molecules are broken down which are surrounded by salt ions.
Answer:
B
Explanation:
catches fire easily, there is a chemical in the substance that reacts to the flame, and a key to it being a chemical property is when exposed to other substances, there is a chemical in the other substances that makes it chemically react
