Explain the difference between cleavage and fracture.

Which of the following statements is true? question 4 options: nuclear decay rates vary with the conditions of the reaction, but chemical reaction rates do not. chemical reaction rates vary with the conditions of the reaction, but nuclear decay rates do not. neither chemical reaction rates nor nuclear decay rates vary with the conditions of the reaction. both chemical reaction rates and nuclear decay rates vary with the conditions of the reaction.

Stage in which a star’s outer layers have started to cool and grow outward?

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.