Which statement accurately describes ci2? a. it is an atom. b. it is a mixture. c. it is an isotope. d. it is a molecule. which statement accurately classifies helium? a. it is an atom. b. it is a mixture. c. it is a molecule. d. it is a compound.

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.