Write the equation for the dissolution of sodium carbonate in water as found in your laboratory guide.
na˘2co˘3 + 2h˘2o —› 2na^+ + 2oh^- + h˘2co˘3

when sodium carbonate is dissolved in water, it doesn’t dissociate, or break up, completely. there is always some sodium carbonate in solution. knowing this, which of the two samples is most alkaline? explain why you say this.

Alice did an experiment to find the relationship between the angle at which a ray of light strikes a mirror and the angle at which the mirror reflects the light. she placed a ray box in front of a mirror. she changed the angle at which the light from the ray box struck the mirror and noted the corresponding angle at which the mirror reflected the light. which of the following is the dependent variable in this experiment? the mirror used to reflect the light the ray box used as the source of light angle at which the light from the ray box strikes the mirror angle at which the mirror reflects the light from the ray box