Complete the following equations (note that the equations are not balanced). Use the activity series if necessary
Li >K> Ba> Sr> Ca > Na > Mg > Al > Mn > Zn > Cr> Fe > Cd >
CO > Ni > Sn > Pb>H> Sb > Bi > Cu > Ag>Pd > Hg > Pt> Au
KI+Pb(NO3)2 → ?

What’s a special glass that most beakers are made of

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

In france, grapes are 1.95 euros per kilogram. what is the cost of grapes, in dollars per pound, if the exchange rate is 1.14 dollars/euro? (2.6)