Chapter 18
The formula SO4 stands for ___________.
What is sulfate?
A(n) _____ chemical equation has the same number of atoms of each element on both sides.
a. complex b. balanced
c. simple d. physical
What is balanced?
A mixture that has the same composition, color, density, and taste throughout.
What is a solution?
Which is balanced?
a. AgNO3 + NaCl → 4AgCl + 2NaNO3
b. 2AgNO3 + 2NaCl → 3AgCl + 2NaNO3
c. AgNO3 + NaCl → AgCl + NaNO3
d. AgNO3 + 2NaCl → AgCl + 3NaNO3
What is C?
NaCl
What is Sodium Chloride?
What is the total number of atoms in the compound Ca(ClO3)2?
a. 2
b. 3
c. 5
d. 9
What is 9?
If energy in the form of heat is required for a chemical reaction to take place, the reaction is ______.
a. exothermic. b. reactant.
c. balanced d. endothermic.
What is endothermic?
Water.
What is the universal solvent?
H2O4
What is Dihydrogen Tetroxide?
In a chemical formula, the number of each type of atom in the compound is shown by numbers called ___.
a. superscripts
b. oxidation numbers
c. chemical symbols
d. subscripts
What is subscripts?
What type of reaction is shown in the chemical equation NH3 + HCl → NH4Cl?
What is Synthesis?
The maximum amount of solute that can be dissolved in a given amount of solvent at a specific temperature.
What is solubility?
What is Magnesium Bromide?
What kind of chemical bond is formed when an equal exchange of electrons occurs?
a. covalent
b. hydrate
c. ionic
d. magnetic
What is covalent?
A substance that speeds up a chemical reaction without being permanently changed itself is a(n) ____.
a. Catalyst b. coefficient c. inhibitor d. reactant
What is Catalyst?
The amount of solute actually dissolved in a given amount of solvent.
What is concentration?
Phosphorus Dioxide
What is PO2?
Why do the noble gases NOT form compounds readily?
a. They have empty outer energy levels.
b. They have no electrons.
c. They have seven electrons in the outer energy levels.
d. Their outer energy levels are completely filled with electrons.
What is D?
A chemical reaction in which thermal energy is released is ____.
a. endothermic
b. exothermic
c. flammable
d. a formula
What is exothermic?
Solid solutions made by melting a metal solute and solvent together.
What are alloys?
Cu(SO)4
What is Copper (II) Sulfate?