Consider this reaction: hco3− + h2s → h2co3 + hs− which is the conjugate acid? h2s hco3- hs– h2co3

Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.