How many grams of sodium metal are needed to react completely with 25.8 liters of chlorine gas at 293 kelvin and 1.30 atmospheres?

Calculate the expected ph values of the buffer systems from the experiments (a,b,c,d), using the henderson- hasselbalch equation, ph-pka+log[a-]/[ha]. use for pka values carbonic acid= 6.37, and acetic acid= 4.75.

Ants live on acacia trees in south america. the ants feed on sugars secreted by the trees. the trees provide room for the ants to live. the ants sting any other insect or animal that comes to eat the trees. what type of relationship is this?

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by