All rocks follow the same pathway through the rock cycle is a false statement. why?

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.

Show how to convert the temperature 84.7° c to kelvin. include all steps and label the final answer.