WorksheetsMs Reed's Chemical reactions/Element test
Total questions: 31
Worksheet time: 18mins
What is the element symbol for Chlorine?
C
Ca
Cl
Cu
What is the element symbol for Calcium?
Ca
Cu
Cl
Cm
What is the element symbol for Carbon?
C
Ca
Cl
Cu
What is the element symbol for Sodium?
Na
S
Su
Sd
A one or two letter abbreviation used to represent an element is called a (n) ______
chemical reaction
element symbol
atomic number
What is the ATOMIC NUMBER FOR SODIUM?
11
22.990
Where did Dr. Yung (the chemist near Westfield) find the reddish-brown substance when she examined all the possible sources?
in the wells where the water comes from
coming from the pipes into the houses
in the ponds nearby the town
in all water everywhere in Westfield
When explaining the following evidence, which is the best evidence we should use?
ugly, color, solid
white, small pieces
white, small, grainy, crystals
smelly, big, gross, color
Are these two samples the same substance?
They are the same substances because they are both white powders.
They are the same substances because they both have similar atomic structures
They are different substances because they have different atoms making them up.
They are the same because they both have the same number of atoms.
Select the FALSE definition for "Repeating groups of atoms"
Repeating atoms are atoms that replicate themself.
Repeating groups of atoms are substances made of the same group of atoms repeated over and over.
Molecules are groups of atoms that form specific groups that are each separate and can range in size from two atoms to thousands of atoms.
Extended structures are substances that in solid phase are made of many atoms or many groups of atoms that connect to form a large structures called crystals.
Why do different substances have different properties?
They are made of different groups of atoms.
They look different.
The same atoms can change their properties when needed.
There are different numbers of the repeating atom groups.
What is the reddish-brown substance in the water of Westfield? Select te BEST answer
The reddish-brown substance is the same as the substance that makes up the pipes.
The reddish-brown substance is the same substance as the fertilizer.
The reddish-brown substance is different from both the fertilizer and the pipes.
The reddish-brown substance is iron oxide or rust.
The tiny pieces that all-matter all the stuff in the world-- is made of_______
protons
atoms
electrons
molecues
The temperature at which a substance changes from the solid phase to the liquid phase....
boiling point
liquid point
condensation
melting point
An object, diagram, or computer program that helps us understand something by making it simpler or easier to see...
simulator
model
atom
experiment
A group of atoms joined together in a particular way...
molecule
atom
extended structure
property
Something that can be observed about a substance, such as color, smell, or boiling point.
property
chemistry
substance
molecule
The relative size of things...
Scale
Molecule
Big and small
Measurement
Something that is made of all the same atoms or groups of atoms...
substance
atoms
chemical formula
molecule
Scientists can use properties to help them distinguish between different substances.
TRUE
FALSE
All properties used to distinguish substances can be found with VISUAL observations.
True
False
Each column in the periodic table is called a _________ .
group
period
cluster
unit
Groups run:
up and down
left to right
When it comes to the periodic table, a period is a......
row
column
punctuation
reaction
Periods run
up and down
left to right
Name ALL the atoms that you see by their ELEMENT NAME (hint: there are 4 elements)
A chemical reaction of the iron pipes and the fertilizer could or could not form into rust?
could
could not
Which labeling of this element is correct?
Atomic weight/mass: 8
Atomic Number: 15.999
Element symbol: O
Element Name Oxygen
Atomic weight/mass: 15.999
Atomic Number: 8
Element name: O
Element symbol: Oxygen
Atomic weight/mass: 15.99
Atomic number: 8
Element Name: Oxygen
Element Symbol: O
Atomic Weight/mass:15.99
Atomic number:8
Element Name: Hydrogen
Element symbol: H
A chemical reaction of the iron pipes could or could not form into rust?
could
could not
A chemical reaction of the fertilizer could or could not form into rust?
could
could not
Atoms don't change, they _______
Add on
Rearrange
Disappear
Rotate
