Copper reacts with sulfur to form copper (I) sulfide according to the following equation: 2Cu + S → Cu2S What is the limiting reactant when 55g Cu reacts with 45.0g S?
Reactants:
Have:
Need:
Limiting Reactant:

An experimental procedure requires a 10 ml of acid to be dissolved

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

If a sample of radioactive isotopes takes 600 minutes to decay from 400 grams to 50 grams, what is the half-life of the isotope?