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What would be the product if a reaction took place between nickel and sulfur?
NiS
What is the formula for the compound sulfur hexachloride?
SCl6
Giselle is pairing ions to create stable binary ionic compounds. She knows that the sum of charges of the two ions must be zero in order for the compound to be stable. Which ion could be paired with potassium ion K+, to form a stable binary
fluorine, F-
What is the suffix for all binary ionic compounds of representative elements?
-ide
Hector claims that a single sodium ion and a single oxygen ion do not bond together to form a stable binary ionic compound. Is he correct?
Hector is correct. The sum of the charges of the two ions must be zero in order for them to form a stable ionic compound.
If an ipnic compound formed between an element from the first columnof the periodic table and another from the sixth column, you would expect a compound to include
two atoms of the element from the first column and one atom of the element from the sixth column
In the formation of the compound of sodium chloride
a sodium atom donates an electron to a chlorine atom
Covalent bonds take place between
two nonmetals
Which rule must be fulfilled by sharing or transferring electrons to create bonds in order for an element to be stable?
octet rule
What will the result be when a reaction between bismuth and fluorine takes place?
BiF3
Predict the product from a reaction between lithium and oxygen.
Li2O
Which pairs of words correctly completes the statement? Ionic compounds form when____ and _____ react.
metals ; nonmetals
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
What is the name of the compound N2O?
nitrous oxide
What is the chemical formula for the compound sodium bromide?
NaBr
What is the name of the compound BaCl2
barium chloride
What is the sum of the charges in a compound?
0
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 metallic ion in the compound CuCl2?
Cu2+
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 formula for the cpm[ound formed when a potassium ion(K+) and a sulfide ion (S-2) unite?
K2S
What is the overall charge of the compound sodium chloride?
0
When do ionic bonds occur?
when electrons are transferred
What is the chemical formula for calcium oxide?
CaO
What does a chemical formula show?
the number and type of each atom in a compound
What is the formula for the compound formed by magnesium cation (Mg+2) and a fluoride anion (F-)
MgF2
What is the formula for the compound formed when aluminum ions(Al 3+) and chloride ions (Cl -) unite?
AlCl3
Covalent compounds are formed when atoms
share valence electrons
What is an ionic bond?
A bond that forms when electrons are transferred from one atom to another
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