Which of the following gases moves the fastest?
a. neon
b. argon
c. oxygen
d. helium

Solar energy is energy from the sun that is converted into thermal or energy. a. nuclear b. mechanical c. electrical d. chemical

Which statement best describes the he properties of iconic compounds ?

Rank the four gases (air, exhaled air, gas produced from from decomposition of h2o2, gas from decomposition of nahco3) in order of increasing concentration of co2