9. A student is dissolving sugar in water. What can the student do to make the sugar dissolve faster?
A. Nothing, sugar will not dissolve in water
B. Add more water.
C. Add ice to the water.
D. Stir the solution.

The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table