Determine the ratio of the rates of effusion of helium and carbon tetrachloride molecules. The maximum pressure that the cylinder can withstand is 1310 mmHg. How many grams of helium must be added to the tank to reach its maximum pressure?

Just took the quiz on edgenuity and the correct answer is "c.  4.54 x  10–12  j"

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The answer to the question: choose the correct statement.  a) when ethane reacts with fluorine gas the product is less stable.b) addition reactions of unsaturated hydrocarbons and halogens requires a high activation energy.  c)the double covalent bond within unsaturated hydrocarbons requires a lot of energy to break.  d)the double covalent bond within unsaturated hydrocarbons can be broken easily.is: a) when ethane reacts with fluorine gas the product is less stable.