How many valence electrons are found in the outermost energy level of fluorine (

f.?

Consider this row in the periodic table of elements. As we move from left to right, across the row, the elements ... A) change from nonmetals to metals. B) change from metals to nonmetals. C) start as gases but end as solids.

The amount of heat transferred from an object depends on which of the following? a. the specific heat of the object b. the initial temperature of the object c. the mass of the object d. all of the above

Volume of 1 mole of N2 at 30 c and 1.2 ATM

How many significant figures are used in expressing a measurement as 0.2503 l?

Which pair of atoms will form an ionic compound? A) One atom of oxygen and two atoms of fluorine Eliminate B) One atom of calcium and two atoms of chlorine C) One atom of nitrogen and three atoms of fluorine D) Two atoms of nitrogen and four atoms

What is the term for a solid that forms when two liquids are mixed together? A. a reactant B. an energy source C. a precipitate D. a solute

To convert from °C to K: T (K) = T (°C) + 273.15

If 5.05 g of Ca (OH) 2 and 6.70 g of H3PO4 are available, how many moles of Ca3 (Po4) 2 will you produce from each?

Why are metals conductive?

What chemical is in plastic bottle and how it affect humans?