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Covalent compounds are formed when atoms
share valence electrons
What is the formula for the compound formed when aluminum ions(Al 3+) and chloride ions (Cl -) unite?
AlCl3
What is the formula for the compound formed by magnesium cation (Mg+2) and a fluoride anion (F-)
MgF2
What is the chemical formula for calcium oxide?
CaO
What is the overall charge of the compound sodium chloride?
0
What is the formula for the cpm[ound formed when a potassium ion(K+) and a sulfide ion (S-2) unite?
K2S
Calcium (Ca) is in the second column of the periodic table and is classified as an alkaline earth metal. Which of the following formulas shows the ratio of a compound formed from calcium and iodine(I)?
CaI2
What is the metallic ion in the compound CuCl2?
Cu2+
A chemical formula includes the symbols of the elements in the compound and subscripts that indicate
the number of atoms or ions of each type
What is the sum of the charges in a compound?
0
What is the name of the compound BaCl2
barium chloride
What is the chemical formula for the compound barium bromide?
BaBr2
What is the name of the compound Ni(NO3)2
Nickel (II) nitrate
Unknown element W has 2 valence electrons. Unknown element X has 7 valence electrons. Which formula shows the most likely outcome when elements W and X react?
WX2
Which pairs of words correctly completes the statement? Ionic compounds form when____ and _____ react.
metals ; nonmetals
What will the result be when a reaction between bismuth and fluorine takes place?
BiF3
