Which best describes a molecule?
O
a unit made of different kinds of elements
a unit made of only one kind of element
a unit made of two or more atoms
a unit made of a single atom
O
O

0.66y = 0.9x + 0.48 if y has a value of 108.45 what is the value of x?

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?

Which position represents spring in the southern hemisphere? a) b) c) d)