24 !
in hooke's law f spring = k (triangle) x , what does the (triangle) x stand for?
a. the constant of gravity
b. the distance the spring stretches
c. the elastic constant, a number that tells the relative strength of the spring.
d. the amount of force acting on the spring.

At stp, what is the volume of 1 mole of co2?

1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.