- Complete the sentence using one of the following words: natural polymer or petroleum Synthetic artificially made) fabrics are made from hydrocarbons found in chemical products

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit

When balancing a chemical equation:

Calculate the energy required to ionize a hydrogen atom to an excited state where the electron is initially in the n = 5 energy level. report your answer in kilojoules