Achemist places a flask containing the reactants in an ice bath. this will the rate of the reaction. increase decrease

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6

Calculate the ph of a .10m nh4cl solution. the kb value for nh3 is 1.8×10^-5