Answer:
I agree with this person ^^
Explanation:
True statements: A (Water is made up of atoms bonded to form molecules) and D (The chemical formula for water is H₂O).
False statements: B (Water contains half as many hydrogen atoms as oxygen atoms) and C (Water molecules tend to push away from each other)
Let's examine each statement to determine its accuracy:
A) Water is made up of atoms bonded to form molecules.
True: Water is indeed composed of molecules. Each water molecule consists of two hydrogen atoms covalently bonded to one oxygen atom, forming the H₂O molecule.
B) Water contains half as many hydrogen atoms as oxygen atoms.
False: The chemical formula for water, H₂O, indicates that there are two hydrogen atoms for every one oxygen atom in a water molecule. Therefore, water contains twice as many hydrogen atoms as oxygen atoms.
C) Water molecules tend to push away from each other.
False: Water molecules exhibit a property called cohesion, where they are attracted to each other due to hydrogen bonding. This attraction causes water molecules to "stick" together rather than push away from each other. It's why water forms droplets and has a relatively high surface tension.
D) The chemical formula for water is H₂O.
True: The chemical formula H₂O accurately represents the composition of water, indicating that each water molecule consists of two hydrogen atoms and one oxygen atom.
The structure of water involves H₂O molecules, with each molecule consisting of two hydrogen atoms and one oxygen atom, and water molecules exhibit cohesion due to hydrogen bonding, causing them to attract and stick together.
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The question probable may be:
Which of the following statements are true and false about water's strucutre.
A) water is made up of atoms bonded to form molecules.
B) Water contains half as many hydrogen atoms as oxygen atoms.
C) Water molecules tend to push away from each other.
D) The chemical formula for water is H₂O.
Correct answer: Isostasy
Isostasy is the state of gravitational equilibrium between the mantle and the earth's crust. It tries to explain how different topographic heights exists on the earth surface.
It tries to balance all large portions of the earth's lithosphere. It controls the regional elevations of oceans and continents according to the density of rocks.
The correct answer is:
c) A nonsense mutation at the fifth codon
Explanation:
A nonsense mutation at the fifth codon will lead to the appearance of a stop codon at this position, thereby the protein will lose its function
The answer is C ) nonsense mutation at the fifth codon ! my major