Which of these is true for a fission reaction? a) it is an endothermic reaction. b) a heavy nucleus splits into two smaller nuclei. c) two light nuclei combine to form a single heavier nucleus. d) it is an interaction between valence electrons of an atom.

The metal wire in an incandescent lightbulb glows when the light is switched on and stops glowing when it is switched off. this simple process iswhich kind of a change? a.a physical changeb. a chemical changec. a nuclear changed. an ionic change

Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter

Which bonds are found inside a water molecule