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HESI A2 CHEMISTRY REVIEW Exam Questions and Answers 100% Solved $10.99
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HESI A2 CHEMISTRY REVIEW Exam Questions and Answers 100% Solved

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HESI A2 CHEMISTRY REVIEW Exam Questions and Answers 100% Solved Absorption - the process by which a substance is soaked up What are Acids - - act as hydrogen-ion donors - produce H3O+ in aqueous solutions - tast sour or tart - most of their formulas begin with H - relase H2 gas when reacting...

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  • December 8, 2024
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  • 2024/2025
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JOSHCLAY
HESI A2 CHEMISTRY REVIEW Exam

Questions and Answers 100% Solved


Absorption - ✔✔the process by which a substance is soaked up

What are Acids - ✔✔- act as hydrogen-ion donors

- produce H3O+ in aqueous solutions

- tast sour or tart

- most of their formulas begin with H

- relase H2 gas when reacting with active metals

- conduct electrical current

- pH is less than 7

Acidic Solution - ✔✔A solution with a pH lower than 7

Acid salt - ✔✔An acid salt contains at least one hydrogen ion and can

behave as an acid in a chemical reaction. Acid salts are produced under

conditions that do not allow the complete neutralization of the acid

Alkali Metals - ✔✔Elements of group 1A. Have a charge of +1. Lithium,

Sodium, Potassium, Rubidium, Cesium. React with water to form hydrogen



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©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.

, gas and a metal hydroxide (MOH) + H2. Also from compounds with the

halogens in the form MX. Ex. NaCl.

Activation energy - ✔✔the energy required to make a reaction occur. The

greater the activation energy of a reaction, the more it's reaction rate

depends on temperature

Alcohol - ✔✔an organic compound which contains a hydroxuyl (OH) group.

Ex Ethanol CH3CH2OH). aka ethanol or grain alcohol

Alkali / Alkaline - ✔✔A base in a (aqueous) solution. Alkalais react with, or

neutralize hydrogen ions in acids and have a pH greater than 7.0 because

they contain relatively few hydrogen ions

Alkali metals - ✔✔A member of group 1 of the periodic table. ex Sodium

Alkane - ✔✔a hydrocarbon with no carbon to carbon multiple bonds, ex

Ethane C2H6

Alkene - ✔✔a hydrocarbon with at least one carbon to carbon double bond,

ex Ethene C2H4

Alkyne - ✔✔A hydrocarbon with at least one carbon to carbon triple bond

ex, Ethyne C2H4

Alloy - ✔✔a mixture of metal and various other elements. Ex brass is an

alloy of copper and zinc

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©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.

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