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.
For more such information on: Water
#SPJ2
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.
Answer:
The correct answer here is: D: They focus on the mental well-being of individuals.
Explanation:
The answer comes from learning what psychology itself is. Although it is true that psychology has grown from science, it is also an art, which means that it does not only base itself on pure hard scientific data, but also on observation. The focus of psychology is more than the biological, or physiological, actions inside a human brain; they focus on the way that the human mind works, the functions within the human mind, and especially how factors such as behavior, culture, society, cognition and personality work together to form a person. In essence, psychology seeks to understand the human mind and thus, through the development of knowledge, help people achieve mental well-being. This is why the best answer from the options is the last one.
I just took the quick check and the answers is B "They both obtain energy by consuming other organisms"
Answer:
Vitamins
Explanation:
The organic molecules which are needed by the organisms in small amounts in order to maintain the proper functioning of the metabolic processes of organisms are known as vitamins.
There are various biochemical functions that the vitamins perform in the body of organisms. As for example some functions have been mentioned below -
B. Secondary succession begins on soil and primary succession begins on newly exposed surfaces.
C. Primary succession modifies the environment and secondary succession does not.
D. Secondary succession begins with lichens and primary succession begins with trees.
Answer:
B. Secondary succession begins on soil and primary succession begins on newly exposed surfaces.
Explanation:
Succession is the natural development of a series of biotic communities at the same site. There are two types of succession; primary and secondary.
Primary succession occurs on lifeless unoccupied areas while secondary happens right after that and in there soil and some organism is present already.
I hope this answer helps you.