Only motivated when rewarded
Before You Begin
Pause and breathe. Even if this shouldn't be happening... accept that it is and embrace it with composure and calmness.
Calmness is the only way forward because without calm, there is no possibility for receptiveness and connection. Your child won't give to you any more than they see from you.
Never forget that a strong connection is fundamental, as there will be no correction in them if there is no connection with you.
The Core Problem
A view that the only reason to do what is right or necessary is to get an instant reward.
What Will Make It Worse
Continuing to use bribes to motivate the child will make the child expect immediate rewards for other behaviors done previously without them.
What The Child Needs
1. To care that they have a personal responsibility to do the action: Explain to the child that regardless of rewards, they have a responsibility to do it anyways.
Additionally, when they do not do what is right, necessary or what they said they would do, there will always be inherent consequences in life, such as those around them not being able to rely on them or trust them, an outside punishment being given to them (e.g. a teacher giving them a bad grade for missed or poor work), and they will develop a bad reputation. All of these consequences will outweigh the selfish delight of being lazy and passing on what they were too unmotivated to do.
2. To see the different forms that natural rewards will come to them in: Help them see that doing anything that should be done comes with inherent positive outcomes, like the satisfaction of accomplishment, the good feeling of helping others as an individual or team member, building towards an even bigger goal, or a heightened status or standing.
How To Have The Conversation With Your Child
Find a place free of distractions where the child will feel comfortable talking freely.
Begin the conversation calmly, expressing that you have noticed more and more they are wanting a reward for what they are being asked to do.
Agree that getting a reward after doing something is always nice, but it should be seen as a bonus to feeling good from completing the task, rather than a trade you are making to do the task.
Next, work through the provided list of what they need with the goal of motivating them (through their eyes) to do future tasks on their own without a reward, and feel a greater sense of satisfaction from doing them.
Ideally you and your child comes away from the conversation agreeing that it's not always fun to do the right thing, but they really are better off for it.