Which formula represents an ionic compound

In pea plants, the allele for tallness (t) is dominant to the allele for shortness (t). in the cross between a tall pea plant and a short pea plant shown below, what is the probability that the resulting offspring will be tall? whats the percent

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.