pH
What pH scale ranges from what number to what number?
1-14
What element has the symbol U?
Uranium
What are salts?
an ionic compound composed of a metal cation and an anion
What is an acid?
A hydrogen containing compound that splits in water to give hydrogen atoms
What is a base?
A compound that reacts with an acid to produce water and a salt
What number shows a neutral pH?
7
What is the symbol for gold?
Au
What is a normal salt?
a salt containing a metal ion and an acidic radical
True or False: Acids always break down carbonates to form carbon dioxide.
True
What is an alkali?
A base that dissolves in water to form a hydroxide ion.
What number shows a basic pH?
7-14 (above 7)
What is the symbol for Mercury?
Hg
What is the chemical formula for table salt?
NaCl
What happens to acids in water?
They yield positively charged hydrogen ions.
What do bases do to acids, and how?
They neutralize them by accepting hydrogen ions.
What numbers show an acidic pH?
1-7 (below 7)
What element has the symbol At?
Astatine
Name one way to make a salt.
-through neutralization when an acid and base are mixed
-double decomposition when two or more ionic compounds react as solutions
-direct synthesis or direct replacement
What is the difference between strong acids and weak acids?
True or False: All alkalis dissolve in water to form hydroxide ions, forming alkaline solutions.
True
What does the pH scale show?
the acidity or alkalinity of a solution
What is the symbol for lead?
Pb
Name one way to make a salt.
-through neutralization when an acid and base are mixed
-double decomposition when two or more ionic compounds react as solutions
-direct synthesis or direct replacement
What are organic acids?
They are acidic compounds produced by living things.
What is one practical use of bases?
-dissolve dirt for cleaning
-resin in paper making