Copper(II) sulfate is an active ingredient in tree stump remover. In order to help remove a tree that was causing foundational damage to a school, a chemistry student soaked
the roots with copper(ll) sulfate. The removed tree was later dried and used as
firewood. Assuming the copper(II) sulfate is present in the wood, what color would be
observed in the fire?

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

Particles vibrate in a rigid structure and do not move relative to their neighbors.

Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins.co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)