in amino acid acid glycine why is the pka of -cooh (pka 2.34) lower then that of -cooh group acetic acid (pka 4.76)?

A+b→2c when the reaction begins, the researcher records that the rate of reaction is such that 1 mole of a is consumed per minute. after making changes to the reaction, the researcher notes that 2 moles of a are consumed per minute. what change could the researcher have made to effect this change?

If i can still dissolve more sugar into the solution at a certain temperature what would i call that solution

Consider this equilibrium: n29) + o2(g) + 2no(c).nitrogen gas and oxygen gas react when placed in a closed container. as the reaction proceeds towards equilibrium, what happens to the rate of thereverse reaction?