Because sucrose is hygroscopic, how should it be properly stored in a cupboard

Express the following number in scientific notation. 0.026890 =

Amethod of separation that employs a system with two phases of matter, a mobile phase and a stationary phase, is called

Bridget is in science class. her teacher gives her two unknown substances and asks her to determine their relative ph. she places a piece of red litmus paper into both substances. the litmus paper turns purple when she places it into substance i. the litmus paper turns blue when she places it into substance ii. a. substance i is a neutral substance and substance ii is an acid. b. substance i is a neutral substance and substance ii is a base. c. substance i is an acid and substance ii is a base. d. substance i is a base and substance ii is a neutral substance.