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Chemistry Questions and Answers (Q&A)

Molecules are arranged in specific patterns in all materials. This is the basic theory of matter. These atoms are arranged in the specific manner because of the interconnecting bonds between the atoms. The stronger the bonds, the more tightly the atoms and molecules are held...Read More

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20gX(1kg)/1000g = 0.020kg

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The answer to this is C. If you would cover the end of the test tube with a paper towel, there is a big chance that the paper towel will also catch flames. If the liquid inside the test tube is flammable, the type of flames that it can form may be larger than usual. This can lead to some...Read More

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I have read the word assumption used when describing certain subject s concerning scientific anolgies

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A. The branch of science that has to do with the matter and nature of the environment or life..

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The answer to this question is B. Nv2O. The generic term for Nitrogen Oxide is actually NOx. This is known to be somewhat hazardous to the health because it can change into Nitrogen Dioxide which is known to cause acid rain and smog. There are different reasons why Nitrogen Oxide...Read More

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As new firms enter the competition, the demand for the single firm is reduced. This means that the demand curve will shift to become less steep. This is indefinitely due to more firms introducing the product. When a single business was involved in catering to clients the demand for the product...Read More

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Option B - Toasting bread is the correct answer
There is a chemical change when you toast a bread. Compare to ordinary bread, toasted bread has a change in color and taste. Making ice cubes and boiling water are physical changes. They represent different forms of water. There is a p...
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Neutrons are known to be heavier than protons. This is because the neutron contains more mass. It has more energy too. They may seem like things that you should not know about but they can be essential. For instance, do you realize that if protons are heavier than neutrons, all of those that...Read More

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