--- An atom of element X contains 15 electrons and 16 neutrons.

(a). (I) State the mass number of X.
(ii) Write the electronic
configuration of X.
(b) (I) Write the formula of a chloride of X. pliz , it's urgent. ​

2points why do scientists need governmental funding? o a. government politicians ask all the important scientific questions. o b. scientists have to pay taxes to the government on the money they make. o c. the cost of doing scientific research can be very high. o d. the government is controlled by scientists. submit

When balancing a chemical equation:

Consider the reaction: n2(g) + o2(g) ⇄ 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?