Name and show one animal that has the ability to hear lower frequencies than humans and one animal that can hear higher than humans. Write their frequency range

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.

What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays