If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a
a. gas.
c. solid.
b. liquid.
d. substance.

Select the correct answer. what is the nature of the se-cl bond in a molecule of selenium chloride (secl2) if the electronegativity value of selenium is 2.55 and that of chlorine is 3.16?

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)

For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 4al(s)+3o2(g)→2al2o3(s) a) 1 molal, 1 mol o2 b) 4 molal, 2.6 mol o2 c) 16 molal, 13 mol o2 d) 7.4 molal, 6.5 mol o2