Which of the following is considered a standard unit of length in the United States? O square inch
O acre
O cubic yard
O yard

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!

Which statement best describes the liquid state of matter? a. it has definite shape but indefinite volume. b. it has definite shape and definite volume. c. it has indefinite shape and indefinite volume. d. it has indefinite shape but definite volume.