Answer:
D
Explanation:
I believe it is D. your kinetic energy would be at b. A, the cart would be going at a constant rate, because there is no hill or steep slope.
2NaClO3 = 2NaCl + 3O2
Hopes this helps <33
The appropriate answer is a. it involves a change in the molecular structure of the substance. A change in phase or state is referred to as a physical change. For example...liquid water freezing is a physical change because the state changes but solid water is still H20. Separating water into its constituent atoms, hydrogen and oxygen is a chemical change because the molecular structure of water is now non existent.
Condensation
..when gas cool down into liquid statr its called condensation..
Answer: 2N2O3 -> 2N2 + 3O2
Explanation: