In nuclear fusion what occur ? 1) lighter elements are converted to heavier element 2) lighter element are converted to even lighter element 3) heavier element are converted to lighter element 4) heavier element chemically combine with lighter elementn

An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.

+= + + balance the equation on coefficients, ex. 1,1,1