Which statement explains what it means for a chemical reaction to be at equilibrium? A) The rate of the forward and backward reactions are equal.
B) The reactions stop because of a lack of reactants.
C) The reactions stop because the system can no longer carry
more products.
D) The masses of the products and reactants are equal.

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?

Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 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.

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?