The water for the pan is not saturated with co2. will the reported percent caco3 in the original sample be too high, too low, or unaffected?

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false

Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.