Do you think a chemical reaction alwas needs
two or more substances or reactants?

Zinc + lead(ii) nitrate yield zinc nitrate + leadwhat's the chemical equation for this?

If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million

Which of the following elements would you expect to have the lowest ionization energy value? fluorine, lithium, neon, nitrogen