All of the following are possible sources of error in a scientific investigation except for a. discovering new variables as the experiment proceeds b. not controlling all the variables in an experiment c. using the wrong equipment during the experiment d. completing multiple trials during an experiment its science

Seltzer water is created by placing water under pressure with carbon dioxide gas. which of the following statements best describe seltzer water: a. the solution will be slightly acidic b. the solution will be slightly basic. the solution will be strongly acidic. d. the solution will be strongly basic. e. the solution will be neutral

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

How do you lengthen a pattern piece? (family and consumer science, sewing)