Covalent bonds
Covalent compounds are made of two...
Cations
Covalent compounds are usually...
Composed of two or more nonmetallic elements
A chemical bond formed when two atoms share electrons is called what?
Covalent bond
What is the formula for a straight chain alkane?
Cx H 2x+2
What is the correct name for N2O5?
Dinitrogen pentoxide
What term means that metals can be pulled into thin strands or wire?
Ductile
Compounds that contain only carbon and hydrogen are called..
Hydrocarbons
What is the empirical formula of a substance that is 53.5% C, 15.5% H, and 31.1% N, by weight?
C2H7N
Which is a property shared by most covalent compounds?
Low melting point
What term means that metals can be rolled into thin sheets or beaten into complex shapes ?
Malleable
What is the simplest alkane?
Methane (CH4)
Which of these elements does not exist as a diatomic molecule?
Ne
What is the correct name for sulfur hexafluoride?
SF6
What is the empirical formula of a compound that is 40% sulfur and 60% oxygen by weight?
SO3
What is the basis of a metallic bond?
The attraction of metal ions to mobile electrons
Why do atoms share electrons in covalent bonds?
To attain a noble gas electron configuration
How do atoms achieve a noble gas in single covalent bonds?
Two Atoms share two pairs of electrons
What is a double bond
Two pairs of electrons shared between two atoms
Which of the following formulas represent a molecular compound? ZnO Xe SO2 BeF2
ZnO
How many carbons are in hexane?
6
Which of the following is a covalent compound? A.) BeHCO3 B.) PCl5 C.)Agl D.)MgS
PCl5
What is the name of the alkane having 5 carbons?
Pentane
A covalent bond in which electrons are shared unequally is...
Polar
In naming a covalent compound, the number of atoms of each element present in the molecule is indicated by..
Prefixes