1
That is formed as the result of a chemical reaction.
Product
It is a process that leads to the chemical transformation of one set of chemical substances to another.
Chemical process
What is the name of the gas that causes an explosion in coal mines
Methane(CH4)
A substance that changes when it is combined with another substance in a chemical reaction.
Reactant
It is a collection of elements or components that are organized for a common purpose.
Or
It is a set of things working together as parts of a mechanism or an interconnecting network; a complex whole
System
It is a usually reddish-brown oxide formed by the reaction of iron and oxygen in the catalytic presence of water or air moisture.
Rust
Why at the beginning of the process rate of reaction the fastest?
This is largely to do with how much of the reactants are present.
This is the minimum energy required to activate atoms or molecules to a condition in which they can undergo a chemical transformation or physical transport.
Activation energy
It will raise the average kinetic energy of the reactant molecules. Therefore, a greater proportion of molecules will have the minimum energy necessary for an effective collision
Increasing temperature
People dancing at a party are more likely
to bump into each other than people sitting down.
Effect of temperatature
A lot of children in a room is more likely
to bump into each other than a few adults.
Reducing the size of solid reactants in the rate of reactions
The principle of chemistry used to predict the rates of chemical reactions
Collision theory
Why increasing concentration increases the rate of reaction?
Because, More particles exist, more successful collisions, faster the reaction.
Does storage temperature affect the purity of washing soda crystals, determined using acid-base titration to find waters of crystallization?
What are independent and dependent variables?
Independent-temperature
Dependent- purity of washing soda
How does the concentration of manganate(VII) affect the rate of the autocatalytic reaction with ethanedioate as measured by colorimetry?
What are independent and dependent variables?
Independent-Concentration
Dependent-Rate of reaction
A material that increases the rate of a chemical reaction by lowering the activation energy.
Catalyst
What is the relationship between the size and surface area of solid reactants
The smaller-sized solid reactant, a larger surface area
or
The bigger sized solid reactant, the smaller surface area
What is an enzyme?
A biological catalyst that lowers the activation energy, and increases the rate of biochemical processes.
To probe whether water acidity affects the calcium ion concentration measured using EDTA complexometric titration
What are independent and dependent variables?
Independent-Water acidity
Dependent- Concentration of calcium ions
How does voltage and electrolyte concentration affect the oxide layer thickness during the anodization of aluminum?
What are independent and dependent variables?
Independent-Voltage, electrolyte concentration
Dependent-Thickness of oxide layer