Geometric isomers occur in some alkenes. These isomers are called cis–trans isomers because of the spatial orientation of the atoms or groups of atoms attached to the two carbons that form the double bond.

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.

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3 -> a2cr(no3)3 + a3ag2so4

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.