If an element A has 3 shells and has 3 valence electrons, write formulas for the following: a. Nitrate of A

b. Chloride of A

c. Oxide of A

Nickel crystallizes in the face-centered cubic (fcc) lattice. the density of the metal is 8902 kg/m3. calculate the radius of a nickel atom.

Consider the following reaction at equilibrium: c(s)+h2o(g)⇌co(g)+h2(g) predict whether the reaction will shift left, shift right, or remain unchanged upon each of the following disturbances. a) c is added to the reaction mixture. b) h2ois condensed and removed from the reaction mixture c) co is added to the reaction mixture d) h2 is removed from the reaction mixture.

Determine the length of the object shown. 97.8 mm 97.80 mm 97 mm 98 mm