What do the letters mean in H2O

Which of the following elements is a highly reactive nonmetal? A. iron (Fe) B. sodium (Na) C. flourine (F) D. helium (He)

Which substance is most compressible? A. a molten metal B. a salt crystal C. boiling water D. water vapor

How does being a landlord relate to chemistry in any way

Which member of the following pairs has the larger London dispersion forces? H2O or H2S CO2 or CO CH4 or SiH4

What is the volume of a 0.120 M solution that contains 9.35 g of HCI?

Which set of terms best defines what affects kinetic energy and potential energy, respectively? position, gravity gravity, velocity velocity, height height, position

Which radiation detection device is the best to use for measuring the presence of radiation in large moving objects where constant monitoring is impossible? film badge Geiger counter cloud chamber scintillation counter

Smoke fiilling up a room is diffusion or not

What is the independent and dependent variable for a dry ice experiment

a substance that undergoes a physical change like melting is still the same substance is it true or false