Chemistry - Chemical Reactions Test

Chemical reaction

a process in which one or more substances(reactants) are transformed into new substances(products) through the breaking and forming of chemical bonds

Chemical equation

a symbolic representation of a chemical reaction, showing the reactants on the left side and the products on the right side, separated by an arrow

Reactants

the substances present at the beginning of a chemical reaction, which undergo chemical changes to form products 

Products

the substances formed as a result of a chemical reaction, produced from the chemical combinations of reactants

Yield arrow

the arrow in a chemical equation that indicates the direction of the reaction, showing the conversion of reactants into products 

Skeleton equation

a simplified chemical equation that only includes the essential reactants and products of a reaction, without specifying their stoichiometry

Law of conservation of mass

the principle stating that the total mass of substances remain constant in a chemical reaction; mass is neither created nor destroyed 

Coefficient

a number placed in front of a chemical formula in a balanced equation, representing the relative number of moles of each substance involved in the reaction 

Balanced equation

a chemical equation in which the number of atoms of each is the same on both sides of the equation, satisfying the law of conservation mass

Catalyst

a substance that increases the rate of a chemical reaction by providing an alternative reaction pathway with lower activation energy,  without being consumed in the process 

Aqueous

a term used to describe a solution in which water is the solvent, typically denoted by (aq) in chemical equations 

Arrhenius base

a substance that, when dissolved in water, increases the concentration of hydroxide ions(OH-) and decreases the concentration of hydronium ions(H3O+)

Bromine

1st Diatomic element

Iodine

2nd Diatomic Element

Nitrogen

3rd Diatomic Element

Chlorine

4th Diatomic Element

Hydrogen

5th Diatomic Element

Oxygen

6th Diatomic Element

Fluorine

7th Diatomic Element

Combustion

_{CxHy + O2 — CO2 + H2O}

Synthesis

A + B — AB

Decomposition

AB — A + B

Single Displacement

A + BC — B + AC

Acid Base

HA + BOH — BA + H20

Double Displacement

AB + CD — CB + AD