Question 2 [3]
A radioactive substance is decaying at a rate represented by y = h(t) = Roa', in millirems per
hour.
If 0 < a < 1 and the initial quantity of the subtance is Ro millirems, represent the quantity that
remains after 24 hours in terms of the function h.​

Why is carbon ideal for making different compounds?

An object of mass 10.0 kg and volume 1000 ml and density 10 g/ml sinks in water who’s density is 1.0 g/ml. what is the mass of the water which has been displaced in kilograms

15) a substance used in manufacturing gasoline consists of finely divided platinum supported on an inert solid. suppose that the platinum is formed by the high temperature reaction between platinum (iv) oxide and hydrogen gas. the other product is water. a) write and balance the equation b) how many grams of hydrogen are needed to produce 1.0 g of platinum metal? c) how many moles of water are produced at the same time? how many grams? ( show work, .)