Ionic
Why is the octet rule important?
Sharing valence electrons makes the atoms have a full valence shell, allowing a stable electron arrangement.
Do ionic or covalent compounds conduct more electricity?
ionic compounds
What are the 7 diatomic elements?
H2, O2, F2, Br2, I2, N2, and Cl2
What is the name for the formula of the binary compound NaI?
sodium iodide
Balance the chemical equation N2 + H2 = NH3
N2 + 3H2 = 2NH3
What is necessary in order to make an ionic compound?
metals transferring valence electrons to nonmetals
How does the octet rule ensure the creation of a covalent bond?
It allows each halogen atom to have a noble gas configuration
What is the compound name when the elements iron (Fe) and sulfur (S) combine?
iron sulfide
What is the formula for cobalt (II) oxide?
CoO
What type of reaction is Zn + HCI = ZnCI + H?
single replacement
When do ionic compounds conduct electricity?
when dissolved in water
What is the molar mass of the covalent compound H2O (water)?
18 g/mol
How does the law of conservation of mass relate to chemical reactions?
The mass of the reactants must equal the mass of the products.
What is the name for the binary molecule NO2?
nitrogen dioxide
What is the product of this chemical equation Na2S + 2HCI and what type of a reaction is it?
Na2S + 2HCI = 2NaCI + H2S and double replacement
What is the molar mass of sodium chloride (NaCI) ?
58.44 g/mol
How many atoms and moles are present in the covalent formula NO (nitrogen monoxide) ?
1 nitrogen atom, 1 oxygen atom, 1 nitrogen moles, 2 oxygen moles
What are the coefficients called in chemical equations and what are they used for?
molar ratios, used as conversion factors for reactants to the products
What is the name for the formula CaCO3 and is it a polyatomic ion?
calcium carbonate and yes
What is the VSEPR shape for the covalent bond CO2?
linear
What is necessary for a single replacement reaction?
An element and a compound switches out the nonmetal with the product being a different compound and element.