Changes
Equations
Classifying
Measurement
Assorted
100
A small whole number to the right in a chemical formula, which gives the number of atoms in a molecule
What is a subscript
100
The starting substances of a chemical change
What are the reactants
100
The combination of 2 or more substances to form a compound
What is synthesis
100
equation for mass divided by volume
What is density
100
Volume of rock when volume of water changes from 75 mL to 86 mL
What is 11 mL
200
A change in a state of matter
What is physical change
200
Newly formed substances of a chemical change
What are products
200
When a compound is broken down in simpler parts
What is decomposition
200
laboratory instrument most often used to measure mass
What is a balance
200
True or False- When a chemical change occures, the law of conservation of mass is always obeyed.
What is True
300
These changes happen on a molecular level
What are chemical changes
300
Compared to protons, these have much smaller mass and opposite charges
What are electrons
300
One element replaces another
What is single replacement
300
What is SI
What is the international system of units
300
Occurs when heat or light is produced.
What is chemical change
400
Unlike burning, melting is this type of change
What is physical change
400
The number of oxygen atoms in a molecule of Al(NO)4
What are 4
400
two elements replace themselves
What is double replacement
400
Base unit for volume
What is Liters
400
Occurs when an apple rots
What is a chemical change
500
the process of breaking chemical bonds and reforming new bonds to create a new substance
What is a chemical change
500
Condensation is an example of what kind of change
What is a physical change
500
Cu(No3)2 + 2NaOH ------ Cu(OH)2 + 2NaNO3
What is double replacement
500
Abbreviation for atomic mass unit
What is amu
500
True or False- the identity of a substance does not change in a physical change.
What is True
M
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u