> What is the pH of a butter system that contains 0.200 M hydrocyanic acid (HCN) and 0.210 M sodium cyanide (NaCN)? The pKof hydrocyanic acid is 9.31.
Express your answer using two decimal places.
IVO AO
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18. use the activity series to predict whether the following synthesis reaction will occur. write the chemical equations for the reaction if it's predicted to occur. (s) + o2(g) -> *note: it is possible.*

The reaction q+r2=r2q is found to be first order in r2 and

Use the drop-down menus to answer each question. which runner finished the 100 m race in the least amount of time? which runner stopped running for a few seconds during the race? at what distance did anastasia overtake chloe in the race?