The amount of grams of hydrogen that are in the water sample is;
3.985 g
<h3>Avogadro's number</h3>
We are given that;
Number of moles of oxygen in a sample of water = 12 × 10²³
- Now, the chemical formula of a molecule of water is H₂O. This means that for every 1 atom or molecule of oxygen, there must be 2 hydrogen atoms or molecules present.
Since Number of moles of oxygen in the sample is 12 × 10²³, then number of moles of hydrogen will be twice that = 2 × 12 × 10²³ = 24 × 10²³ moles
Now, molar mass of hydrogen is 1 g/mol and we know that;
Molar mass = Avogadro's number(6.023 × 10²³) moles
Thus;
6.023 × 10²³ moles = 1 g/mol
Thus; 24 × 10²³ moles of hydrogen = ( 24 × 10²³ × 1)/(6.023 × 10²³)
⇒ 3.985 g
Read more on Avogadro's number at; brainly.com/question/914267
The statement which best describes the action taken by this nurse is: a. Primary prevention.
<h3>What are nutrients?</h3>
Nutrients refers to the chemical compounds (substances) that are present in food, and they're needed by the body of a living organism for healthy growth, reproduction, development, proper functioning, and reproduction. They include:
<h3>Who is a nurse?</h3>
A nurse can be defined as a professional who has been trained in a medical institution and licensed to perform the following tasks and activities in a hospital:
- Promoting hygienic behaviors among clients or patients.
- Providing care for sick people (client).
- Providing care for an injured client or patient.
- Perform routine checks on some medical instruments.
- Providing an intervention to client issues.
In conclusion, we can infer and logically deduce that the statement which best describes the action taken by this nurse is primary prevention because it addresses the main issue.
Read more on nutrients here: brainly.com/question/4413413
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Complete Question:
When teaching a nutrition class to a student group with a large Latino population, the school nurse incorporates foods such as salsa and other healthy dishes familiar to students into the presentation. Which of the following best describes the action taken by the nurse?
a. Primary prevention
b. Secondary prevention
c. Tertiary prevention
d. Both primary and secondary prevention
Answer:
Lamarckism, a theory of evolution based on the principle that physical changes in organisms during their lifetime—such as greater development of an organ or a part through increased use—could be transmitted to their offspring.
