Someone help me please I got it wrong idk why please help

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.

You can estimate the degree to which a bond between two atoms is ionic or covalent by calculating the

When can a theory be modified if a new type of technology allows for new observations that raise new questions? a-immediately, while the questions about the theory are being asked b-after new hypotheses related to the theory are tested in experiments c-only after the new observations disprove all parts of the theory d-while scientists begin to think about how the theory could improve