When 2 grams of hydrogen react with 32 grams of oxygen the reaction yields hydrogen peroxide how many grams of h202 are produced in this reaction a) 3 grams b) 24 grams c) 30 grams d) 34 grams

Complete the table for ion charge based upon their losing or gaining electrons in the outer shell. (use the periodic table as necessary.) group most likely ionic charge # of valence electrons i +1 ii +2 iii +3 iv +4 or -4 v -3 vi -2 vii -1 viii 0

In all living cells dna controls cellular activities by

Which sentence best describes the formation of igneous rock? a- lava on the surface dries up and makes arock b_melted rocks cools and forms crystals c_rocks under tremendous heat and pressure d_magma is melted rock underground