What is the best way to answer these questions but in a simple way(as if you were explaining to a child). do easy answers ! 111 : )
1. how are plasmas formed?
2. a pure substance is what?
3. solids have what properties?
4. gases have what properties?
5..how does changes of states affect energy?

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

Amines are good nucleophiles, even though they are neutral molecules. how would the rate of an sn2 reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? amines are good nucleophiles, even though they are neutral molecules. how would the rate of an reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? because both reactants in the rate-limiting step are neutral, the reaction will be faster if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will be slower if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will occur at the same rate if the polarity of the solvent is increased. request answer

How many atomic mass units are equal to 1.672×10−24 g of protons?