Muriatic acid, an industrial grade of concentrated hcl, is used to clean masonry and cement. its concentration is 11.7 m. for routine use, a diluted solution of 3.50 m is prepared. how many milliliters of 3.50 m muriatic acid solution contain 47.7 g of hcl?

How will the emission of an alpha particle affect the atomic number of an atom

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

Melissa is interested in her family tree and how her family has changed over its many generations. melissa probably more closely resembles