Which reactants would lead to a spontaneous reaction?
cu2+ and ag
ba2+ and mn
ag+ and cu
k+ and na

What element breaks down into yttrium-90?

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

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