Why do scientists use the scientific method? A. It helps them determine whether an idea is supported by evidence.
B. It helps them do research that other scientists can understand.
C. It helps them ask questions that affect as many people as
possible.
O D. It helps them make sure a certain question has not been asked
before.

3.09 lab: reaction of metals 1 which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.

Drag each pressure unit with the corresponding number to describe standard atmospheric pressure

Achemist needs to prepare a buffer solution of ph 8.80. what molarity of nh3 (pkb = 4.75) is required to produce the buffer solution if the (nh4)2so4 in the solution is 1.8 m?