A metallurgist begins with 1,250 grams of vanadinite (Pb5(VO4)3Cl) and ends up with 135 grams of pure vanadium and 915 grams of pure lead. The percent composition of vanadium in the ore is , and the percent composition of lead is .

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.

може ли да зареждате повече информация, моля