Which letter in the diagram represents the transition from liquid to gas?
Temperature vs. Amount of Heat
Added to a Substance
200
O A
m
OB
D
9 100
C
Temperature (°C)
C
B
OD
0
А
-100
Amount of heat added

Alculate the concentration of h3o⁺in a solution that contains 5.5 × 10-5m oh⁻at 25°c. identify the solution as acidic, basic, or neutral.a) 1.8 × 10-10m, basicb) 1.8 × 10-10m, acidicc) 5.5 × 10-10m, neutrald) 9.2 × 10-1m, acidice) 9.2 × 10-1m, basic

When will le chatelier's principle come into effect? at the beginning of a reaction, when there are only reactants when a reaction has reached chemical equilibrium when a catalyst is added to a reaction mixture when a reaction is occurring but not yet at equilibrium

Match the mixture with the substance// i really need on this guys (it’s a pic btw)