When scientists use one of their five senses to gather information, they are A.
drawing a conclusion.
B.
making an inference.
C.
predicting a relationship
D.
making an observation.

Achemistry student needs of 40ml diethylamine for an experiment. by consulting the crc handbook of chemistry and physics, the student discovers that the density of diethylamine is 0.7 . calculate the mass of diethylamine the student should weigh out. round your answer to significant digits.

As the distance from a magnet increases, what happens to the magnet force?

Awave is propagating from left to right in a medium. the particles in the medium are also vibrating from left to right. what kind of wave does this describe? a. longitudinal wave b. transverse wave c. mechanical wave d. electromagnetic wave