Which statements describe isotopes? Check all that apply. Isotopes of the same element have the same number of protons.
Isotopes of the same element have the same number of neutrons.
All isotopes are unstable.
Some isotopes are unstable.
Isotopes are identified by their mass number.
Isotopes are identified by their atomic number.

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide