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Worksheets6th Grade 1st 9 Weeks Review
Total questions: 50
Worksheet time: 2hrs 4mins
Is the following an element or compound?
O2
Element
Compound
Is the following an element or compound?
C6H12O6?
Element
Compound
Which of the following is a characteristic of a compound?
Compounds are pure substances made from two or more elements chemically combined.
Compounds are represented by a chemical symbol.
In a chemical equation what does the information to the right of the yield (arrow) sign represent?
Product(s)
Reactant(s)
How many Carbon atoms are in CO?
zero
one
two
three
2H2 + O2 → 2H2O
In the equation, what is the product
2H2 + O2 → 2H2O
2H2 + O2
2H2O
Which of the following is a characteristic of a compound?
Compounds are represented by a chemical symbol.
Compounds are represented by a chemical formula.
Which of the following is a characteristic of an element?
Elements are represented by a chemical symbol.
Elements are represented by a chemical formula.
Which of the following is a characteristic of an element?
An element is a pure substance.
Elements are made from two or more elements.
Which of the following is a characteristic of an element?
An element is a pure substance because it is made of one type of atom.
Elements are made of different types of atoms.
In a chemical equation what does the information to the left of the yield (arrow) sign represent?
Product(s)
Reactant(s)
How many Oxygen atoms are in CO?
zero
one
two
three
In the chemical equation below, what are the reactants?
2H2 + O2 → 2H2O
2H2 + O2
2H2O
Which of the following diagrams represents a compound?
Which of the following diagrams represents a mixture?
Which of the following diagrams represents an element?
Which of the following is an element?
CO2
CO
CaCO3
Co
Which of the following is an element?
Carbon Dioxide CO2
Carbon Monoxide CO
Calcium Carbonate CaCO3
Copper Cu
A chemical reaction that gives off heat is called
An exothermic reaction.
An endothermic reaction.
During a chemical reaction where silver has tarnished, what color will the silver change to?
green
black
copper
no color change
Ice melting is an example of what type of change?
physical change
chemical change
Water freezing and becoming solid ice is what type of change?
physical change
chemical change
Green leaves on a tree dying, and becoming brittle change during the fall to different colors because they are experiencing what type of change?
physical change
chemical change
Baking a cake is an example of a
physical change
chemical change
Cooking a steak on the grill is an example of a
physical change
chemical change
Frying a potato to make french fries is an example of a
physical change
chemical change
Boiling water is an example of a
physical change
chemical change
During electrolysis water is split chemically by electricity to become hydrogen and oxygen. This is an example of a
physical change
chemical change
Aluminum is what type of element
Metal
Non metal
Metalloid
Sulfur is what type of element
Metal
Non metal
Metalloid
Chlorine is what type of element
Metal
Non metal
Metalloid
Aluminum has the following properties
Brittle and a poor conductor.
Malleable and a good conductor.
Malleable and a poor conductor.
Brittle and a good conductor.
Sulfur has the following properties
Brittle and a poor conductor.
Malleable and a good conductor.
Malleable and a poor conductor.
Brittle and a good conductor.
Chlorine has the following properties
Brittle and a poor conductor.
Malleable and a good conductor.
Malleable and a poor conductor.
Brittle and a good conductor.
Good conductors of electricity and heat are considered
Metals
Non metals
Metalloids
Good conductors of electricity and heat are considered
Metals
Non metals
Metalloids
Poor conductors of electricity and heat are considered
Metals
Non metals
Metalloids
Non metals have the following properties
Dull, poor conductors, brittle and can be solid, liquid, or gas.
Dull, good conductors, brittle and can be solid, liquid, or gas
Lustrous (shiny), poor conductors, brittle and can be solid, liquid, or gas.
Lustrous (shiny), good conductors, brittle and can be solid, liquid, or gas.
Metals have the following properties
Dull, poor conductors, malleable and usually are solid at room temperature. .
Dull, good conductors, malleable and usually are solid at room temperature.
Lustrous (shiny), poor conductors, malleable and usually are solid at room temperature.
Lustrous (shiny), good conductors, malleable and usually are solid at room temperature.
Metalloids have the following properties
Shiny or dull, semi-conductors, malleable or brittle and solid at room temperature.
Shiny or dull, good conductors, malleable or brittle and solid at room temperature.
Shiny or dull, poor conductors, malleable or brittle and solid at room temperature.
Shiny or dull, insulator, malleable or brittle and solid at room temperature.
The ability of a substance to be rolled or pounded into various shapes. Has the property of _______________.
malleabiltiy
ductility
density
electrical or thermal conductivity
The ability to be stretched into wire without breaking. Has the property of _______________.
malleabiltiy
ductility
density
electrical or thermal conductivity
Objects that are malleable or brittle and a semi conductor are what type of element?
Metals
Nonmetals
Metalliods
Objects that may malleable and semi-conductive are what type of element?
Metals
Nonmetals
Metalliods
Objects that are malleable and good conductors are what type of element?
Metals
Nonmetals
Metalliods
A change that occurs when one or more substances change into entirely new substances with different properties is known as a
Chemical change
Physical change
How many elements are present in the following compound C6H12O6?
3
6
12
24
