Consider the made-up transition metal Rikerium, symbol Rk. Write the formula for each of the following compounds (which do not exist!): Type your answers in the provided space, using the sub T2 and superscript T2 buttons in the question menu. A.  ammonium diaquatetracyanorikerate(II)  B.  pentaamminehydroxorikerium(III) phosphate

The sea slug is a(n) _____.

A [a]5.00 mL sample of an unknown concentration triprotic acid solution is pipetted into a beaker, then titrated with 0.[b][c]3 M NaOH using an appropriate indicator. This indicator changes color at the 2nd equivalence point which occurs at [d]2.[g]4 mL of titrant. The concentration of the triprotic acid solution is ______M ?  Show your work in the file you upload. Enter your answer in decimal form, with correct sig figs, no units.

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A characteristic that is shared by snakes and birds is _______

All of the following are true of genetic drift, EXCEPT

Why is Tiktaalik considered a transitional fossil?

Human birth weight is an example of

A paleontologist studies

How many chromosomes belong to a normal human male?