Acids
Acids begin with...
H
A base is defined as a compound that produces ____.
hydroxide ions in a solution (OH)
The substances that are present before a chemical reaction takes place are called ____.
reactants
According to the law of conservation of mass, if two atoms of hydrogen are used as a reactant, how many atoms of hydrogen must be part of the product?
2
Numbers that precede symbols and formulas in a chemical equation are called ___.
coefficients
A compound has a pH of 1 in solution, where it has completely ionized. The compound is a ____.
Strong acid
Bases end with....
OH
Each substance to the right of the arrow in a chemical equation is a ____.
Product
A(n) ____ chemical equation has the same number of atoms of each element on both sides of the equation.
balanced
How many hydrogen atoms are present in one molecule of ammonium acetate, NH4C2H3O2?
7
What will happen to litmus in the presence of an acid?
Will turn blue litmus paper red.
Which molecules are most likely to have a covalent bond?
2 nonmetals
What could represent a single replacement reaction?
(Write one out.)
element + compound = element + compound
The breaking down of a substance into two or more substances is ____.
decomposition
How many total atoms are in the compound C6H8O7?
21
A solution does not affect red litmus paper but it turns blue litmus paper red. What type of compound was added to water to form the solution?
acid
Lithium and sodium are in the same group on the Periodic Table. What do they have in common?
-name one of the three things they have in common
Same chemical properties, same valence, same oxidation
What are the products in a combustion reaction?
CO2 and H2O
How many neutrons are in Nitrogen—15 with an atomic number of 7?
8 neutrons
Which state of matter does not have a definite shape or a definite volume?
gas
What are common properties of acids?
(Give me 3.)
changes color of indicators, tastes sour, reacts with metals
What are common property of bases? (name 3)
Changes colors of indicators, feels slippery, tastes bitter
Which best describes chemical synthesis reaction?
Two or more elements combining to form a new compound
An object with a mass of 30-g and a volume of 6-mL. What is the object's density?
5 g/mL
Select the particles or particle that account for more than 99.99% of the mass of atoms other than hydrogen.
protons and neutrons