Which of the following is a single replacement reaction? a. 2al + 6h2o > 2al (oh)3 + 3h2 b. ch4 + 202> co2 + 2h2o c. fe2o3 + 3h2o > 2fe(oh)3 d. agno3 + nacl> agcl + nano3

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

Calculate: select the worksheet tab. this tab you calculate the analyte concentration.  fill in the first set of boxes ("moles h2so4" and "moles naoh") based on the coefficients in the balanced equation. (if there is no coefficient, the value is 1.)  record the appropriate volumes in the "ml naoh" and "ml h2so4" boxes.  record the concentration of the titrant in the m naoh box. click calculate. what is the concentration listed

How many moles are in 43.9 l of oxygen