What is the approximate hydronium ion concentration and hydroxide ion concentration in a cup of tea? which is higher?

What is avogadro’s number, and why is it useful

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j