Answer:
The answer to your question is letter D.
Explanation:
Bohr tells us that the electrons which have a negative charge clicle the orbits in specific nucleus, so the right answer is letter D.
Letter C is not possible because the electrons are in orbits circling the nucleus where the protons are.
Letter B is not correct because electrons are distributed in orbits but the amount of electrons in one orbit is different to the other one.
The pH meter can only be used to differentiate between weak and strong acids providing that the concentrations are known. However, it is convenient to determine the concentration of an acid (or base) by titration.
Answer:
A. particles are the same.
Explanation:
Hello, since we are talking about the water, the molecules are quite equal.
Nonetheless, if you want to know it (because this is not in the answers), the particles move faster in the boiling water than in the ice, considering that in the boiling water there is a larger energy content, which allows the molecules to move faster (they "have" more energy). In addition, The molecules are closer in the ice because that is the only way for them to solidify (get together).
Best regards!
Answer:
The <u>detection</u> of iron in a mixture of metals for example , or in a compound such as magnetite, is a branch of analytical chemistry called qualitative analysis. <u>Measurement</u> of the actual amount of a certain substance in a compound or mixture is termed quantitative analysis.
Answer:
D. The government determines what is right & wrong for everyone
Explanation:
