Giả sử hiệu suất quá trình sản xuất là 100% thì khối lượng h2so4 có thể thu đc từ 1,6 tấn quặng pirit sát có chứa 60%fes2 là bao nhiêu

Is this a single replacement reaction or there is no

How can you use chemical equations to predict the products of the reaction you can carry out?

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