QUESTION 1 OF 13
What is the chemical symbol for Sodium?
Explanation: The chemical symbol for Sodium is Na, derived from its Latin name 'Natrium'.
QUESTION 2 OF 13
The chemical formula for water is:
Explanation: The chemical formula for water is H2O, two hydrogen atoms bonded to one oxygen atom.
QUESTION 3 OF 13
DNA (deoxyribonucleic acid) has a structure famously described as a:
Explanation: DNA has a structure famously described as a double helix.
QUESTION 4 OF 13
The periodic table of elements was primarily developed by:
Explanation: The periodic table of elements was primarily developed by Dmitri Mendeleev.
QUESTION 5 OF 13
The chemical symbol for gold is:
Explanation: The chemical symbol for gold is Au, from its Latin name 'Aurum'.
QUESTION 6 OF 13
The chemical symbol for silver is:
Explanation: The chemical symbol for silver is Ag, from its Latin name 'Argentum'.
QUESTION 7 OF 13
The chemical symbol for iron is:
Explanation: The chemical symbol for iron is Fe, from its Latin name 'Ferrum'.
QUESTION 8 OF 13
The chemical symbol for sodium is:
Explanation: The chemical symbol for sodium is Na, from its Latin name 'Natrium'.
QUESTION 9 OF 13
The chemical symbol for potassium is:
Explanation: The chemical symbol for potassium is K, from its Latin name 'Kalium'.
QUESTION 10 OF 13
The pH scale, used to measure acidity/alkalinity, ranges typically from:
Explanation: The pH scale, measuring acidity/alkalinity, typically ranges from 0 to 14.
QUESTION 11 OF 13
A pH value of 7 on the pH scale represents a:
Explanation: A pH value of 7 represents a neutral solution.
QUESTION 12 OF 13
The Sun is primarily composed of which two elements?
Explanation: The Sun is primarily composed of hydrogen and helium.
QUESTION 13 OF 13
Hemoglobin, the protein in red blood cells responsible for carrying oxygen, contains which metal ion?
Explanation: Hemoglobin, the oxygen-carrying protein in red blood cells, contains iron.