in an experiment, a student wants to increase the rate of a reaction that involves gases. which change to the reactants
would accomplish this?
increase the volume to decrease pressure and to increase concentration,
increase the volume to increase pressure and to decrease concentration
decrease the volume to decrease pressure and to increase concentration
decrease the volume to increase pressure and to increase concentration,
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Find the number of moles of argon in 364g of argon.

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.

Ascientist wants to know how individual lions within a pride interact with each other in their own environment. to do this, the scientist sedates and tags all of the lions within a pride. then, he places several remotely-controlled video cameras near the lions' den and performs an observational field study. he collects continuous video footage over the span of one year, analyzes the video, and then forms conclusions based on his observations.