A gas has a temperature of 40C at a pressure of 400 atm. What is the pressure at 60C?

how many liters of oxygen will be produced at STP if 1.25 kg potassium chlorate decomposes completely?

CuCl2 + Al - - - > AlCl3 + Cu Balance the single replacement chemical reaction. A) CuCl2 + Al - - - > AlCl3 + Cu B) 3CuCl2 + 2Al - - - > 2AlCl3 + 3Cu C) 2CuCl2 + 3Al - - - > 3AlCl3 + 2Cu D) 3CuCl2 + 3Al - - - > 3AlCl3 + 3Cu

Which statement explains how commercial land use negatively impacts watersheds? Chemicals in fertilizers run off into water and cause algae blooms. Production of clothing items makes pollutants that contaminate the water.

A big blue ball! You can see a big blue ball. Select the two properties of light that enable you to see the ball. A) energy and wavelength) reflection and absorption) reflection and refraction) absorption and transmission

A chemical or physical change that releases heat into its surroundings is ... A. An exothermic process B. melting ice C. endothermic process D. A phase change

Identical forces act for the same length of time on two different masses. The change in momentum of the smaller mass is A) smaller than the change in momentum of the larger mass, but not zero. B) zero.

How many nuclei of 238 92 U 92 238 U remain in a rock if the activity registers 290 decays per second? (Note that the half life of Uranium-238 is 4.468x109 years)

A base can neutralize an acid. true or false

Hydrochloric acid (12.0 ml of 0.233 m) is added to 296.0 ml of 0.0579 m ba (oh) 2 solution. what is the concentration of the excess h + or oh - ions left in this solution?

Which are the organs of the digestive system