Reactivity Series Flashcards
What is the reactivity series and how are groups organized?
The reactivity series ranks metals by their reactivity, with Group 1 being the most reactive and Group 3 being the least reactive.
- Group 1: Potassium (K), Sodium (Na), Lithium (Li), Calcium (Ca), Magnesium (Mg), etc.
- Group 2: Magnesium (Mg), Aluminium (Al), Zinc (Zn), Iron (Fe), Tin (Sn), Lead (Pb), etc.
- Group 3: Hydrogen (H+), Copper (Cu), Silver (Ag), Gold (Au), Platinum (Pt), etc.
How do metals in Group 1 react?
Metals in Group 1 (e.g., Potassium, Sodium, Lithium) react with cold water and below (steam, acid).
- With cold water: metal hydroxide + hydrogen
- With acid: salt + hydrogen
How do metals in Group 2 react?
Metals in Group 2 (e.g., Magnesium, Calcium) react with steam and below (acid).
- With steam: metal oxide + hydroxide
- With acid: salt + hydrogen
How do metals in Group 3 react?
Metals in Group 3 (e.g., Copper, Silver, Gold) have very low reactivity and do not react under normal conditions.
What is precision in terms of measurements?
Precision refers to the number of decimal places a value is accurate to. The more decimal places, the more precise the measurement.
What does it mean for an experiment to be reliable?
An experiment is reliable when it is repeated more than once and consistently yields similar results.
What is accuracy in terms of measurements?
Accuracy refers to using the correct apparatus for measurements to ensure the values are correct and close to the true value.
