Almost all characteristics of a star are determined by its position in its galaxy

closeness to other stars

initial mass

Which stage comes first in the life cycle of a high-mass star?

red giant

white dwarf

protostar

Scientist wants to react a barium chloride salt with an acid. to speed up the reaction, the scientist crushes the barium chloride salt until it is a fine powder. this speeds up the reaction by a. increasing the ph of the salt. b. increasing the surface area of the salt. c. increasing the pressure of the salt. d. increasing the temperature of the salt. im thinking more a not 100% sure

Which of the following best describes the formation of plasma?

Which type of intermolecular attractions holds ammonia molecules together with other ammonia molecules?