Elements
What is made of one type of atom?
Element
What is a pure chemical substance made of two or more different elements chemically bonded together?
Compound
How do elements combine to form a mixture?
Physically combine
What is an alloy?
A. Mixture of two metals
B. Mixture of metal and nonmetal
C. Mixture of two non metals
D. Both A and B
Both A and B (a mixture of two metals or a mixture of a metal and non metal)
What element has the symbol Fe?
Iron
Where would you find all known elements listed?
Periodic table
Do compounds have the same properties as the elements which they are made from?
No.
True/ False
Substances within a mixture can be physically separated.
True
Which alloy is commonly used to make musical instruments?
Brass
If you burn magnesium, what do you produce?
Magnesium oxide
What are the two main types (categories) of elements?
Metals and Nonmetals
True/ False?
Compounds can be physically separated
False
Which of the following is not an example of a mixture?
A. Italian dressing B. Salt Water
C. Pure Water D. Lemonade
C. Pure water
What alloy contains iron and small amounts of carbon?
Steel
What type of gas produces a squeaky 'pop' when lit?
Hydrogen
What is an element made of?
a single type of atom
What is an example of a compound?
water, carbon dioxide, salt
Yes/ no?
Does a mixture produce a new chemical substance?
No
Why is sterling silver better than silver alone?
It is stronger and more durable.
What are the columns and rows called in the periodic table?
columns - groups
rows - periods
What is an example of an element with two atoms bonded together?
Oxygen, Hydrogen, Nitrogen etc.
What compound is made from sodium and chlorine?
NaCl
Table salt
Evaporation
Why are alloys important?
The mixtures have superior properties than the elements that make them.
True/ False?
Mixtures can not be made of elements and compounds
False
Air is an example - carbon dioxide (compound), oxygen (element), nitrogen (element) etc.