Chemistry, 09.04.2020 03:01, demij

At stp, 32.0 liters of o2 contains the same number of molecules as what element?

Answers: 1

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 07:30, gwenparks

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1

Answers: 1

continue

Chemistry, 22.06.2019 07:40, pillgiing

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

Answers: 3

continue

Chemistry, 22.06.2019 17:30, llamasking

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)

Answers: 2

continue

Chemistry, 22.06.2019 18:30, kate3887

When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?