What happens when an atom that has lost an electron comes in contact with an atom that has gained an electron?
O A. They form an ionic compound.
B. They form a water molecule.
O C. They form an oxygen molecule.
O D. They form a covalent bond.

The graph below compares the rates of reaction of a burning candle and an exploding firework. comparing chemical reactions what can you conclude from the graph? the reaction that causes a firework to explode requires less energy to start, and occurs more rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires less energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs more rapidly than the reaction that causes a candle to burn. mark this and return

Which process of living things produces water that enters the water cycle

Why are common names a problem for scientist?