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vocabulary 2.1
Ch 2.2
Periodic Elements
Random questions
More Periodic Elements
100
A characteristic of a substance that can be observed or measured without changing the identity of the substance.
What is physical property
100
filtration
How can you separate sand from water
100
H
Hydrogen
100
The water level will drop slightly as the ice melts.
If you fill a glass to the brim with ice water and the ice melts, what will happen?
100
O
Oxygen
200
100*c
What is the boiling point for water
200
Distillation
What can you do to separate a mixed base
200
He
Helium
200
Chlorine
Noble gases are inert because they have completed outer electron shells. Which of these elements isn't a noble gas?
200
Co
Cobalt
300
Is a form of matter that has a definite volume, but an indefinite shape.
What is a liquid
300
Iron
What is FE
300
K
Potassium
300
Slightly acidic
Water-based liquids can be described as acidic, neutral, or basic, with respect to pH. Which of these describes milk?
300
Na
Sodium
400
Is a form of matter that has neither a definite shape nor a definite volume.
What is a Gas
400
Is an expression that shows the elements in a compound and the relative proportions of those elements.
What is a chemical formula
400
Fe
Iron
400
Antimony
The symbol Sb stands for stibnum or stibnite. What is the modern name of this element?
400
Mn
Manganese
500
Made of only one type of atom or only one type of molecule.
What is a pure substance
500
Gold
What is NU
500
Uuo
Ununoctium
500
fluorine
The most electronegative element among the following is
500
Uup
Ununpentium