I need to do this but i really don’t know what to write about so can everyone help me and just put something nice i should put

If i make a solution by adding 83grams of sodium hydroxide to 750ml i’d water what is the molarity of sodium hydroxide

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.