1. write the complete chemical symbol for the ion with 14 protons 15 neutrons and 18 electrons 2. write the complete chemical symbol for the ion with 27 protons 32 neutrons and 25 electrons

The density of an unknown gas at 98°c and 740 mmhg is 2.50 g/l. what is the molar mass of the gas with work showed?

How does a hydroelectric power plant converts energy into energy.

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.