Measuring the rate of reaction
1. What is the rate of reaction?
The rate of reaction is the speed at which a chemical reaction happens — how quickly reactants turn into products.
2. What does “rate” mean in rate of reaction?
“Rate” simply means speed, so it describes how fast the reaction takes place.
3. What is magnesium ribbon?
Magnesium ribbon is a thin strip of the metal magnesium. It is light, shiny when cleaned, and reacts quickly with acids.
4. Why does magnesium exist, and how does it exist?
Magnesium is a natural element formed inside stars. On Earth it usually exists:
in compounds like magnesium oxide or magnesium carbonate
as pure metal after extraction
5. How does magnesium help make new things?
Magnesium reacts easily, allowing it to form new compounds. It is used in:
alloys
medicines
fireworks
electronics
scientific experiments
6. What is a gas syringe?
A gas syringe is lab equipment used to collect and measure gas produced during a chemical reaction. Gas pushes the plunger outward, and the volume can be read.
7. What is a gas syringe used for?
It is used to:
safely collect gas
measure how much gas is made
determine the rate of reaction
8. What is the syringe scale?
The syringe scale is the numbered markings on the gas syringe(10 mL, 20 mL, 30 mL, etc.).
9. What is the syringe scale used for?
It is used to read the exact volume of gas produced. This measurement helps plot graphs and calculate reaction rates.
10. What is plotted in an experiment?
To plot means to draw results on a graph.
Usually you plot:
time → x-axis
volume of gas (or another measurement) → y-axis
This shows how the reaction changes over time.
11. What is an anomalous result?
An anomalous result is a result that:
does not match the pattern,
looks incorrect,
or is very different from the others.
Example:10, 11, 9, 48, 10 → 48 is anomalous.
These often happen due to errors or mistakes.
12. What does correspond mean?
To correspond means to match or relate to something.
Examples:
A point on a graph corresponds to a specific time.
A result corresponds with the trend if it fits the pattern.