Answer:
The equilibrium in the system is a dynamic equilibrium. At equilibrium, the rate of the forward reaction (CH4 decomposing into C2H2 and H2) is equal to the rate of the reverse reaction (C2H2 and H2 reacting to form CH4). At equilibrium, the concentrations of all substances are not changing.
Explanation:
It’s the first one i know because i took the test i hope this helps
Depends on what subject you're trying to remember. If you chew mint gum while studying and then chew the same kind of gum when taking your test, it helps you remember things. The only time that I ever had to draw things to remember them (as a visual learner) Was only for math equations that had geometry in them. I hope this helps!
Return on investment (ROI) is calculated using the formula (Net income / Cost of investment) x 100.
<h3>What is return on investment?</h3>
A return on investment or return on costs is a ratio between net income and investment.
The formula for return on investment (ROI) is given as;
ROI = (Net income / Cost of investment) x 100
A high return on investment means the investment's gains compare favorably to its cost. It is often used to measure the performance of an investment.
Thus, Return on investment (ROI) is calculated using the formula (Net income / Cost of investment) x 100.
Learn more about Return on investment here: brainly.com/question/22985922
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