Multiple Choice
In a water molecule (H₂O), which atom carries a partial positive charge?
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2. Atoms & Elements
The Atom
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Which type of atom is present in both water (H2O) molecules and carbon dioxide (CO2) molecules?
A
Oxygen
B
Carbon
C
Nitrogen
D
Hydrogen
Verified step by step guidance1
Identify the chemical formula for water, which is H₂O. This indicates that water is composed of hydrogen and oxygen atoms.
Identify the chemical formula for carbon dioxide, which is CO₂. This indicates that carbon dioxide is composed of carbon and oxygen atoms.
Examine the elements present in both H₂O and CO₂. Notice that oxygen (O) is a common element in both molecules.
Understand that the question asks for the type of atom present in both molecules. Since oxygen is found in both H₂O and CO₂, it is the correct answer.
Review the options provided: Oxygen, Carbon, Nitrogen, Hydrogen. Confirm that oxygen is the element present in both water and carbon dioxide.
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