With ! pleee

1. which of the following systems has the highest entropy?

a. a cup of ice at 0 degrees c

b. a cup of water at 50 degrees c

c. a cup of water at 0 degrees c

d. a cup of ice at −15 degrees c

2 the change in free energy, or δg, represents the maximum amount of energy available to do useful work.

true
false

the major pests we deal with are insects, weeds and fungal diseases. a pesticide is a product, whether organic or chemical, used to kill the target pest. there are other techniques gardeners should use that can prevent the severe infestations that make the use of pesticides necessary

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.