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

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.

What are the constituent metals of stainless steel?

Arrange the elements in order of increasing electronegativity. use the periodic table to you arrange the elements. p o k mg