Polypropenamide is used as thickening agent, binder, super absorbent, soil conditioner, filtering aid, flocculating agent, cross linker, suspending agent, lubricant. Its monomer is CH2=CH(CO) NH4. Make a polymer ( at least 3 monomers joined together.

Can someone me with questions 12 and 13 plz.

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

What natural processes produce large quantities of co2