Which subatomic part of the atom (a-c) are involved in chemical bonds and reactions?

Balance the following KMnO4 + HCl = KCl + MnCl2 + H2O + Cl2

Which material is very strong and tough but shows very little elongation as it absorbs energy?

Which two particles re most similar in mass?

An atom of chlorine has several valence electrons in its third shell, second shell, first shell, or nucleus?

How many moles are in 226 g of Fe (NO2) 2?

Samuel adds a teaspoon of salt to a glass of water. He notices that the song disappears. Samuel takes a sip to discover that the water taste salty. What kind of change has occurred?

How are the physical and chemical properties of atoms represented on the periodic table of elements

how do we know isotopes exist?

Is albinism a dominant or recessive trait

If T = dominant, and t = recessive, what would the genotypes be?