Which is a characteristic of a scientific claim? A. it is supported by a controlled experiment with multiple trials that can be repeated by others

B. it is another way to describe the controlled variables in an experiment

C. it involves an experiment with multiple variables that can be repeated by others

D. it is an if-then statement that predicts the most likely results of an experiment

What is the source of continuous heat and energy that we receive from the sun

Solid tin exists in two forms: white and gray. for the transformation sn(s, white) → sn(s, gray) the enthalpy change is -2.1 kj/mol and the entropy change is -7.4 j/(mol*k). a. calculate the gibbs free energy change for the conversion of 1.00 mol white tin to gray tin at -30℃. b. will white tin convert spontaneously to gray tin at -30℃? c. at what temperature are white and gray tin thermodynamically equivalent at a pressure of 1 atm?

Which of the following statements is true about both nuclear fusion and nuclear fission? they occur in the sun. heavy atoms are split. two light nuclei combine. some mass changes into energy.