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☆☆☆☆☆Cards in this guide (19)
What is a complete ionic equation
An equation showing all dissolved compounds as ions
Where do you place the symbols that represent the state of matter in an equation
. After the chemical formula for each compound
Which of the following is an example of a synthesis reaction
H2+Br2-->2HBr
What does percent composition tell you about a molecule
It tells you how much of a molecule is made up of each element. - APEX
Which of the following would be useful for converting gmol to gL
molarity
Which one of the following is a common acid soap aspirin antacid and washing soda
Aspirin
Why are prefixes used in naming covalent compounds
The same atoms can combine in more than one ratio.
Why are state symbols used in chemical equations
They identify what phase the substances are in
-Apex
What are the substances you end up with in a chemical reaction called
The products
What reaction shows a compound breaking apart into separate substances
Decomposition reaction
What is the best definition of a physical change
Answer this question… Which of the following is the best definition of a physical change?
Which the following is a necessary product of a combustion reaction
heat
What happens in a double replacement reaction
In this reaction a change of bonds of the reactants occur: the general form is:
AB + CD = AD + BC
What is a following is a decomposition reaction
CaCO3 -> CaO + CO2
The change that takes place when two or more substances what to form new substances is called a chemical reaction
(Apex) interact
Where are all the products of a hydrocarbon combustion reaction
The products of the hydrocarbon combustion are water and carbon dioxide.
Best describes where cellular respiration occurs
In every body cell -apex
Which o fthe following represents a physical change
Phase change - apex
On a very hot summer day, railroad tracks can buckle, causing train delays and derailments. Select the best reason below for the buckling
The metal undergoes thermal expansion.
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