Use the square from the periodic table shown in Figure 2-3 to complete the blanks. Chromium
24
Cr
51.996
Figure 2-3
Atomic number:=
Symbol:=
Name of element:
Atomic mass:=

Pinene is an unsaturated hydrocarbon found in pine resin. if pinene has m+ = 136 and contains 1 double bond(s) and 2 ring(s); what is its molecular formula? enter the formula in the form ch first, then all other atoms in alphabetical order; do not use subscripts. the formula is case-sensitive