Chemistry Questions and Answers (Q&A)

The correct answer is option A
Bismuth (Bi) is a metallic element it has the strongest metallic character of all the option listed above. Bi is a poor metal it is similar to the arsenic and antimony. It is the last element in the group which makes it the most metallic; it has the lowest...
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The correct answer to this question is 5. The formula for pH is pH = -log[H+]. pH is used in chemistry, to identify how acidic or basic a solution is. This pH would be acidic because 5 is less than 7. Anytime the value is less than 7, and the pH is acidic. If the value were more than 7, the pH...Read More

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A + b ↔ ab -when dealing with pressure, you need to count the number of moles on both side of the equation. if there is an increase in pressure, the reaction favors the direction with less number of moles. if there is a decrease in pressure, the reaction will favor the direction with more...Read More

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Sugar is soluble in water, but pepper is not.

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The correct answer to this question is B, it has 80 mol of atoms. Mol, also known as moles or Avogardro's number, are an amount unit used in chemistry. It is the mass of a substance, which would contain the same number of units in an atom. These units could be formula units, atoms, or...Read More

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I dont get this please help me answer this question

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The answer is D. This is Rutherford’s experiment where he wanted to prove the existence of a nucleus in an atom. Ernest Rutherford along with his students Ernest Marsden and Hans Geiger bombarded alpha particles into a very thin gold foil and had an observation that 1/8000 of the...Read More

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The atmosphere because the phsphorus cycle only take splace with rocks, water, and soil.

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The best term to describe the pair of compounds shown in answer C. The same compound. A compound is made of contrasting elements in definite proportions. Some examples of these elements include iron, copper, hydrogen, and oxygen. A compound is a material formed when two or more elements are...Read More

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