How do you tell how many valence electrons there are in an element by looking at the periodic table? Which electron pairs in the tire Lewis formula of H2S are bonding and which are lone pairs? Explain how a chemical reaction can either release energy or store energy....
Explain how a chemical reaction can either release energy or store energy. Why does the electronegativity decrease from top to bottom as a trend in the periodic table? Why is the plasma membrane so important to operation of cells? Is a single molecule of oxygen ( O_2 ) held togeth...
The change over temperature is called the “critical temperature.” Adding heat to the paper causes the paper to loose its color, an “endothermic” reaction. The reverse, going from colorless to colored, is an “exothermic” reaction and returns the heat....
In this case, the reaction is endothermic and over time will favor the reactants.The values below are the Q values for each reaction:Alpha decay: 4.27 MeVB- decay: -0.147B+ decay: -4.483Electron Capture: -3.461As you can see, the only decay mode that will release energy is alpha deca...
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