Which of the following molecules would you expect to have a dipole moment of zero? a. H2C=CH2
b. H2C=O
c. CH2ClBr
d. H2C=CHBr
e. CCl2=CCl2

Consider the following system at equilibrium. caco3(s) ca2+(aq) + co32–(aq) the addition of which compound will cause a shift in equilibrium because of a common ion effect? ccl4 co2 cuso4 na2co3

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

What reaction is taking place? 02 + c3h8 = h20 + co2