The answer is NaSO4 because one mole sodium sulfate Na2SO4 dissociates into two moles of sodium ions Na+ and one mole of sulfate ions SO42-.
When one mole of ammonium chloride NH4Cl dissolves in water, it dissociates into one mole of ammonium ions NH4+, and one mole of chloride ions Cl−.
Also 1 mol NH4NO3 produces 1 mol NH4+ ions and 1 mol NO3- ions, while 1 mol NaCl dissociates into 1 mol Na+ ions and 1 mol Cl− ions.
Sucrose does not ionize in water, therefore, sodium sulfate NaSO4 produces the greatest number of ions among the given compounds.
Copper is D) oxidized and is the reducing agent
EXPLANATION: Copper goes from a charge of 0 in Cu to +2 in CuSO4 so it is oxidized. A reducing agent is the substance being oxidized.
Answer:
C
Explanation:
C. It is considered a cooling process and it lowers the average kinetic energy of the liquid because the higher energy molecules turn to vapor.
Moreso, evaporation does not increase the average kinetic energy because it is a surface phenomenon. Also, as molecules excape at a fast moving rate, the left over molecules have a lower kinetic energy and this consequently decreases the temperature of the liquid.
When molecules absorbs heat, the evaporate and this phenomental process provides cooling in the system
Answer:
8.96 g/mL
Explanation:
density = mass / volume
density = 134.3g / 15.0 mL
density = 8.96 g/mL
D. the reflection of each concave lens makes the object appear larger
