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Unit 7 & 8 Review Flashcards | StudBud
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Unit 7 & 8 Review
Unit 7 & 8 Review
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Answers
1
The amount of a substance present in a defined space is called a..
Concentration
Variation
Invocation
Substration
2
In chemistry, the term pH stand for...
Percent of Helium
Potential or Power of Hydrogen
Percent of Petroleum
Potency of Hydroxide
3
Potassium alum (K2Al2(SO4)4·24H2O) is an example of a...
Triple Salt
Neutral Salt
Combustible Salt
Double Salt
4
The Elements, or Compounds in FRONT of the arrow or yield in Chemical Reactions are called...
Yields
Products
Reactants
Coefficients
5
BONUS - Acid rain is mainly made from which of the following...
sulfur dioxide (SO2) & nitrogen oxides (NOx)
BaCl + H2O
OH & hOH
HOH + NaCl
6
The ability of an atom to attract electrons is called...
Positronium
Electronegativity
Covalency
Electron Valence Cloud
7
The numbers in front of Elements, or Compounds in Chemical Reactions are called...
Subscripts
Exponents
Composite Numbers
Coefficients
8
Water on the pH scale is which of the following...
10
9
7
8
9
When Reactants bond to form products, what is the equal sign, or arrow refer to?
Products
Nuclear Fission
Division
Yields
10
The compound H3O+ is identified as which of the following...
Water
Salt Water
Sodium Hydroxide
Hydronium Ions
11
When an acid & base react to form a salt and water, resulting in a solution that is neither acidic nor basic...
Inflation
None of the above
Acidification
Neutralization
12
If you mix a strong acid with a strong base, the pH will be around which of the following?
Above 8
about 7
Higher than 10
Below 6
13
When you dissolve a basic salt in water, the solution usually has a pH greater than 7, this means that the solution is..
Neutral
ACIDIC
BASIC
None of the above
14
A chemical substance with a pH less than 7 that donates hydrogen ions or accepts electrons is..
An Atom
A Base
a Molecule
An Acid
15
Ammonium chloride (NH4Cl) is an example of which type of salt...
Advanced Salt
Basic Salt
Sexual A Salt
Acidic Salt
16
Hydrochloric acid (HCl) plus (+) sodium hydroxide (NaOH) results in which of the following...
BrCl + H20
FlO + HOH
HOH + NaCl
NCl + Nothing
17
When 2 H2 + O2 combine, which of the following is formed...
H-O-H
2 H2O
Na+Cl-
OH-
18
A chemical substance with a pH greater than 7 that accepts hydrogen ions or donates electrons is called a
ACID
Proton
Neutral
BASE
19
Which of the following is a method used to find the unknown concentrations of acids or bases?
Concentration
Titration
Substration
Infiltration
20
NaOH is which of the following...
Sodium Chloride
Sodium Carbon
Trionic Sodium
Sodium Hydroxide
21
What does the abbreviation '(aq)' represent in chemical equations?
Solid
Liquid
Usually dissolves in water
Aqueous Solution
22
Which of the following salts come from strong acids and strong bases?
Acidic Salts
Neutral Salts
Prime Salts
Exponential Salts
23
When a base and an acid combine to form a salt and a water, what would this be called?
Double Replacement
Synthesis
Single Replacement
Zero Replacement
