Answer:Answer:
For 1: The correct answer is Model 1, 2, and 4.
For 2: The correct answer is Option 1.
Explanation:
For 1:
An element has 3 subatomic particles: electrons (E), neutrons (N) and protons (P).
Atomic number is defined as the number of protons or number of electrons.
Atoms having same number of protons are same. From the given models, Model 1, 2 and 4 have 2 protons with different neutrons. Hence, these models belong to same element.
For 2:
A compound is defined as a substance in which two or more types of elements combine in a fixed ratio. For Example: is a compound made out of atoms of carbon and oxygen.
Hence, the correct answer is Option 2.
Answer:
False
Explanation:
Remember Q=MCAT
Specific heat wouldn't be effected, rather, the energy necessary to change the temperature would.
Zygote,mitosis,meiosis,sex cells,and fertilization
Answer:To be considered a source of water pollution, the source must include a chemical.
Explanation:
Answer:
Education after high school. A bachelor's degree in agricultural science is required for jobs in research. ...
Work Experience. Previous work experience in a particular research area may be required for some jobs.
On-the-job training.
Explanation:
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