Hich one of the following is radical? (1 Point)

a. NH4+

b. CuSO4

c. CH4

d. NH3

What prefix multiplier is appropriate for reporting a measurement of 5.57 ×10−5 m?

Fill in the blanks for the following statements: the rms speed of the molecules in a sample of h2 gas at 300 k will be times larger than the rms speed of o2 molecules at the same temperature, and the ratio µrms (h2) / µrms (o2) with increasing temperature. a not enough information is given to answer this question b sixteen, will not change c four, will not change d four, will increase e sixteen, will decrease

How many moles are in .5g of sodium bromide?