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PLEASE HELP, I'M STRUGGLING Use Newton's method 7 cos(x)=x+1 x=? Calculus question ! I am struggling to find the equation. Help Please !? Calculate ΔE for the combustion of a gas that releases 215 kJ of energy to its surroundings and does 78.5 kJ of work on its surroundings.? In the single replacement reaction between zinc and HCl, what reaction resulted from inserting the lit splint into the test tube mouth? How to do this addition reaction?