Write the names and number of atoms of the elements each of these compounds are made up of. example HNO 3- 1 atom of Hydrogen+ 1 atom of Nitrogen+ 3 atoms of oxygen
SO 2- …………………………………………………………………………………………… ……
CaCO 3 -………………………………………………………………………………………… ……….
HCl-………………………………………………………………………………… ……………………..
ZnCl 2 -………………………………………………………………………………………… …………..
Fe 2 O 3 -………………………………………………………………………………………… …………

When will le chatelier's principle come into effect? at the beginning of a reaction, when there are only reactants when a reaction has reached chemical equilibrium when a catalyst is added to a reaction mixture when a reaction is occurring but not yet at equilibrium

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.