Which of the following elements is most likely to form an ion that will then form an ionic bond with an ion of a Group 1A element?

A) Pt

B) I

C) Fr

D) Be

What mass of sodium carbonate would be required to remove essentially all of the calcium ion from 750 l of solution containing 43 mg ca2 + per liter?

Which is an example of an energy transformation? (A) a soccer ball sitting in a field. (B) a person waiting at a crosswalk. (C) an unlit candle. (D) a boulder falling off a tall cliff.

Briefly describe the solvation of sodium chloride to form aqueous solution.

How many grams of titanium (Ti, 47.90 g/mol) are in an instrument gear with 5.74x10^22 atoms of Ti

Which fuel contributes least to global warming per kj of heat produced? which fuel contributes least to global warming per of heat produced? propane methane octane?

What fraction of carbon 14 remains in an animal frozen in a glacier 18000 years ago?

How do you convert the number of molecules of a substance to the number of moles? a. add Avogardo's number b. subtract Avogardo's number c. multiply Avogardo's number d. devide Avogardo's number

Give 3-5 pieces of evidence to support why cloning is bad.

Nitrogen combines with oxygen to form nitrogen monoxide (no) and nitrogen dioxide (no2). a sample of no consists of 1.14 g of oxygen and 1 g of nitrogen.

The modern periodic table reflects many improvements to Mendeleev's original table. If Mendeleev's table was incorrect, why is it still studied in chemistry classrooms today?