Formulae and balancing equations Flashcards
What is the chemical formula for water?
H2O
True or False: Ionic bonds involve the sharing of electrons.
False
What is the charge of a sulfate ion?
2-
Fill in the blank: The formula for sodium chloride is ______.
NaCl
Which of the following is a diatomic molecule: H2, O2, N2, or all of the above?
All of the above
What type of bond is formed between two nonmetals?
Covalent bond
What is the formula for carbon dioxide?
CO2
True or False: A covalent bond is stronger than an ionic bond.
False
What is the empirical formula for glucose (C6H12O6)?
CH2O
What is the name of the bond formed between sodium and chlorine?
Ionic bond
Fill in the blank: The formula for ammonia is ______.
NH3
What is the molecular formula for ethene?
C2H4
Which of the following has a triple bond: N2, O2, or H2?
N2
True or False: Metallic bonds involve a sea of delocalized electrons.
True
What is the formula for calcium carbonate?
CaCO3
What type of ion is formed by the loss of an electron?
Cation
Fill in the blank: The formula for hydrochloric acid is ______.
HCl
What is the charge of a nitrate ion?
1-
Which element is usually found in group 1 of the periodic table?
Lithium
What is the bond angle in a tetrahedral molecule?
109.5 degrees
True or False: The formula for a compound gives the number of each type of atom present.
True
What is the chemical formula for sulfuric acid?
H2SO4
Fill in the blank: The formula for potassium bromide is ______.
KBr
What type of bond is formed between metals?
Metallic bond
What is the formula for magnesium oxide?
MgO
What is the name of the bond formed when electrons are shared equally?
Nonpolar covalent bond
Which of the following compounds is ionic: NaCl, CO2, or CH4?
NaCl
