Given the following chemical reaction: 2 o2 + ch4 --> co2 + h2o
what mass of oxygen is required to completely react with 20 grams of ch4?
a) 10 grams o2
b) 20 grams o2
c) 80 grams o2
d) 144 grams o2

i think so it’s will be b yes i believe its

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