Which statement best describes a chemical change A. substance form new substance
B. the nuclei of atoms are rearranged
C. A substance changes size or phase
D. atoms are made and destroyed

An experimental procedure requires a 10 ml of acid to be dissolved

What is the value of keq for the reaction expressed in scientific notation?

An excess of lithium oxide undergoes a synthesis reaction with water to produce lithium hydroxide li2o+h2o→2lioh if 1.05 g of water reacted, what is the theoretical yield of lithium hydroxide? a) 5.83 x 10–2 g lioh b) 1.17 x 10–1 g lioh c) 2.79 x 100 g lioh d) 1.40 x 100 g lioh