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Mixtures and Solutions Test, Science, 5th grade

STUDY
PLAY
A chemical reaction happens ______ occurs.
change
What are the building blocks of matter?
Atoms
mixtures
Two or more substances that are combined.
Solution is when a solid dissolves in a liquid and the liquid is
clear
Universal Solvent
Water
Example of solution
salt water
solute
The substance dissolved in a solvent.
Chemical formula
symbols and numbers to describe the kinds and numbers of atoms in a molecule.
dissolved
A process in which one material disperses uniformly into anothermaterial, so that the first material seems to disappear.
atom
the smallest particle of an element.
chemical bond
the attachment between two atoms in a molecule
chemical reaction
the process in which two or more substances combine to make one or more new substances that have different properties than the original ones
x
x
concentration
the relative amount of a substance in a mixture
compound
a substance made up of two or more elements that are chemically combined
crystal
the solid form of a material that can be identified by its natural shape or pattern
dissolving
the process of a material becoming incorporated uniformly into another, or of two materials mixing together evenly
element
a sample of matter composed of only ONE kind of atom
evaporate
to turn into gas, like water into water vapor
x
x
mixture
a substance containing two or more materials with different properties
molecule
two or more atoms combined
periodic table
an arrangement of the elements that provides information about their properties
precipitate
a solid material that forms during a chemical reaction
product
a new substance created in a chemical reaction
reactant
The starting substances in a chemical reaction
saturated solution
a solution in which as much solute as possible has been dissolved
solubility
how well a solid will dissolve.
solute
a substance that dissolves in a solvent to form a solution
solution
a special mixture formed when one or more materials dissolves in another
solvent
a liquid that dissolves a solute to form a solution
Examples of chemical reactions are
change in temperature, gas forms, or a precipitate forms.
How do you know that a solution has become saturated?
You will see solid material at the bottom of the container.
The greater the solubility of a substance...
the more it dissolves
The lower the solubility of a substance...
the less it dissolves
How do you know Epsom salt is more soluble than table salt?
Much more of it dissolves in the same amount of water.
Atoms are never...
destroyed or created.
Atoms just...
rearrange
All atoms in the reactants are...
used to make products
No atoms are left behind and no atoms...
come from another place
The number of atoms on the reactant side is...
exactly the same as the ones on the product side
In a formula, the reactant side is on the...
left
In a formula, the product side is on the...
right
The arrows means...
"yields"
C + O² =
CO²
2 H² + O² =
2H²O
HCl + NaHCO³ =
NaCl + CO² + H²O
O², N², C, Al, and Cu are all examples of
elements
H²O, CO², and NaCl are all examples of
compounds
C has ___ atom/s
one
O² has ___ atom/s
two
NaCl has ___ atom/s
two, one of each
H²O has ___ atom/s
Three
2H²O has ___ atom/s
six
2NaCl has ___ atom/s
four
How si the Periodic Table ordered?
from the smallest to the largest atom
What is the smallest atom?
hydrogen
Where do you start reading the Periodic Table?
At the top left
You read the periodic table like a...
book (to the left, and then down to the next row)