Naming Molecular Compounds Just going over a quick review on my chemistry stuff. When naming molecular compounds, should the prefix system be used for compounds involving Hydrogen? For example, would H2I be Hydrogen Iodide, or Dihydrogen Iodide?
Chemistry Help - Percentage Yield I was going through my chemistry review and I cannot figure out how to do this question so if anyone can help me out it would be greatly appreciated. The follwing reaction is known to occur with a percentage of field of 82.7% at room temperature: Zn + S -> ZnS. If a chemist produced 826.77g of zinc sulfide at the end of an experiment, what mass of zinc was initially placed into the reaction chamber?
Chemistry Help - Reactions Cu + 4HNO3 -> Cu(NO3)2 + 2NO2 + 2H2O I was just wondering if this was a single displacement reaction, or is this a combustion reaction?
Math Help - Logs Solve. a) 4^x + 6(4^-x) = 5 b) 8(5^2x) + 8(5^x) = 6 Thanks for any help.
Math Help Please State two intervals in which the function y = 7 sin (1/5x) +2 has an average rate of change that is a) zero b) a negative value c) a positive value State two points where the function y= 1/4 cos(4(pi)x) - 3 has an instantaneous rate of change that is a) zero b) a negative value c) a positive value Any help is appreciated, thanks !