Which of these might affect whether or not a particular chemical reaction occurs a) adding a catalyst b) creasing the heat c) crease in the pressure d) all of these may a chemical reaction occur

The first element on the periodic table of elements is carbon. a. true b. false

Is this a single replacement reaction or there is no

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.