What is the enthalpy of the reaction? Use Delta H r x n equals the sum of delta H f of all the products minus the sum of delta H f of all the reactants..

–1,839.6 kJ

–1,179.8 kJ

1,179.8 kJ

1,839.6 kJ

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?

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

According to the tide table below what time of day will the highest tide occur?