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WorksheetsGrade 9 Science Quiz Bee (Difficult Round)
Total questions: 10
Worksheet time: 7mins
The basic unit of taxonomic ranking among organisms wherein
individuals of similar species should be capable of producing offspring
through reproduction to sustain their existence.
(a)
A hypothetical element X with 5 valence electrons will ionically bond with element Y with 2 valence electrons. What is the chemical formula of the resulting compound?
X2Y3
X3Y2
X2Y5
X5Y2
The chemical formula of Magnesium hexachloroplatinate is MgPtCl6. Based on this information, what is the chemical formula Hexachloroplatinic acid? (charge of Mg= +2) (Note: Write the chemical formula constinuously and without any spaces, e.g., C2H4O2)
(a)
A set of genes that influence and control the expression of biological traits.
(a)
An organic compound has a name of 2,3-Diethyl-6-methyldecane. What is the chemical formula of the organic compound (Type your answer continuously and do not put any punctuation or space on it, e.g.,C2H6).
(a)
It is a path along the Pacific Ocean characterized by active volcanoes and frequent earthquakes
(a)
If the chemical equation C2H4 + O2 → CO2 + H2O is balanced, what will be the stoichiometric coefficient of O2 in the equation? (Type the number form of the answer)
(a)
A cluster of proteins that transfer electrons through a membrane to create a gradient of protons that creates ATP
(a)
What is the proper IUPAC name of the given organic compound.
(a)
What is the Volcanic counterpart of the Richter scale? (do not use the acronym)
(a)
