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Exothermic and Endothermic are opposite reactions. All reactions need energy to be put in to start them off, this is called the activation energy, but th...
1. Check if the equation is balanced, luckily this one is! 2. Check if any unit conversions are needed. All masses are in grams, so no problem there. 3. Using (moles = mass ÷ Mr), calculate...
The six carbon atoms in benzene are arranged in a planar ring, with one hydrogen atom bonded to each carbon. Each carbon atom has 4 valence electrons, and uses three of them to form single bonds with the ...
when looking at an atom on the periodic table, we see that within the box are two numbers: one at the top and one at the bottom. the top number represents the atomic number and the bottom number represent...
First, write a balanced chemical equation to determine the ratio of the reacting species: NaOH + HCl --> NaCl + H2O Sodium hydroxide and hydrochloric acid react in a 1:1 ratio,...
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