According to the law of conservation of matter, which chemical equation represents a possible chemical reaction? a. caco3 fe2o3 b. 2na + cl2 2nacl c. 4fe + 3o2 c6h12o6 + 6o2 d. c6h12o6 + 6o2 cao + co2

An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above

Which of the following statement is false ? a.batteries should never be stored on metal trays or outside in the elements)b, battery acid cannot be neutralized)c.do not stack batteries on top of each other)d.never put a damaged battery in a dumpster. i

How is science controlled by the governerment