The chemical formula of chalk is caco3. identify the elements and calculate the number of atoms of each element in the smallest unit of chalk

What must occur for air masses to form fronts

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.

Convert the temperature of dry ice, –77 ∞c, into degrees fahrenheit and kelvin.