Which apparatus is used in measuring a base in laboratory? Show Options a.  pipette b. measuring cylinder c. burette d. conical flask

How did planetesmals form planets? a. they broke apart into smaller chunks. b. they collided and stuck together. c. they cooled and pulled ice together. d. they began to rotate.

What is the temperature of one mole of helium gas at stp?

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.