D-base Ca(OH)2 + HCI > Compound A+ H2O (OR C a left parenthesis O H right
parenthesis 2
+ HCl right arrow Compound A + H20)
One of the single ions that is used to form compound A is
Assume enough of each compound is used to get a complete reaction.

1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false

Why does his teacher ask him to balance the equation by including the correct coefficient

650.j is the same amount of energy as? 2720cal1550cal650.cal2.72cal