Lithium (li) is higher than iron (fe) on the activity series. what does this mean?
a. li will replace fe in a combination reaction.
b. fe will replace li in a single-replacement reaction.
c. li will replace fe in a single-replacement reaction.
d. li will replace fe in a decomposition 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

For each of the following compounds, decide whether the compound's solubility in aqueous solution changes with ph. if the solubility does change, pick the ph at which you'd expect the highest solubility. you'll find ksp data in the aleks data tab. compounds does solubility change with ph

Hey guys so i need to know what is _nh3+> nh4oh ~chemistry~