Acids/Bases
These taste sour and react easily with metals.
What is an acid?
Elements and compounds are known as _____substances.
What is pure?
The letters in a chemical formula
What are the element symbols?
NaCl
What is salt?
The pH value of a neutral solution
What is 7?
These taste bitter and feel slippery
What is a base?
True/False Compounds are different elements that are chemically combined.
What is true?
The number to the bottom right of an element symbol
What is a subscript?
NaOH
What is sodium hydroxide?
True/False A substance with pH 4 is a base.
What is false?
The range of numbers on a pH scale
What is 0 to 14?
The term for 2 or more atoms chemically combined, can be the same element or different elements
What is molecule?
The part of a chemical formula that tells you how many molecules you have of that compound
What is the coefficient?
NH3
What is ammonia?
This represents a molecule of a compound using symbols and numbers.
What is the chemical formula?
A strong acid would be close to this end of the pH scale
What is 0?
True/False Elements that combine together to form a compound lose their original properties to become a new substance.
What is true?
The number of oxygen atoms in the compound below:
4H2SO4
What is 16?
NaHCO3
What is baking soda?
The name of the indicator paper that we use to determine if something is an acid or base
What is litmus paper?
These form OH- (hydroxide ions) in solution
What are bases?
From this list, these are the compounds:
CO2 N2 Air CaCl3 O3 Dirt
What is CO2 and CaCl3?
The number of phosphorus atoms in the compound below:
4Mg2(PO4)2
What is 8?
CH3COOH
What is vinegar?
Toothpaste, baking soda, bleach, eggs
What are examples of bases?