Which half-reaction correctly represents reduction? (1) ag --> ag+ + e–
(2) f2 --> 2 f– + 2e–
(3) au3+ + 3e–--> au
(4) fe2+ + e– --> fe3+

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?

22. a flask containing 450 ml of 0.50 m h2so4 was accidentally knocked to the floor. how many grams of nahco, do you need to put on the spill to neutralize the acid according to the following equation: h2so4(aq)+2 nahcos(aq) na,so(aq) +2 h20()+2 co2(g) d) 38 g a) 2.3 g b) 9.5 g c) 19 g

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.