List the atomic numbers of the elements in period 2

The following reaction is first order in N2O5: N2O5 (g) →NO3 (g) + NO2 (g) The rate constant for the reaction at a certain temperature is 0.053/s Calculate the rate of the reaction when [N2O5] = 5.1*10-2 M.

What do Boron and germanium have in common

A block of wood has a density of 0.95 g/cm3. will it float or sink when placed on a liquid with a density of 0.88 g/mL? explain your answer.

What instrument measures the flow rate of a liquid by comparing the flow through two sections of tapered pipe?

How do concentrated basic solutions differ from other basic solutions?

Can you think of other possible ways scientists can determine what climate was like in the past besides studying ice cores?

Which sub-layer thins out into space, where there is no air

Complete and balance the molecular equation, including phases, for the reaction of aqueous ammonium bromide, nh4br, and aqueous lead (ii) acetate, pb (c2h3o2) 2.

A magnesium atom has 2 valence electrons in its third shell. Which is a TRUE statement about what happens when it forms an ion? A. It will be an anion. B. It will have more electrons than protons. C.

What scientific discoveries led to changes in Dalton's atomic theory?