Chemistry Questions and Answers (Q&A)

The correct answer to this question is B, 43.2 g. The mass of the glucose in one mole is calculated and then compared. First, one must identify that there are : 12 H = 1.0079g x 12 =12.0948 g , 6 C = 12.011g x 6 = 72.066 g , and 6 O = 15.9994g x 6 = 95.9964 g . Once we have these figure...Read More

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The correct answer to this question is A. The nucleus of the atom was discovered by Ernest Rutherford in the year of 1911. Born in New Zealand, Rutherford is a British physicist considered as the father of nuclear physics. He discovered the atomic nucleus based on the Geiger–Marsden gold...Read More

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The correct answer to this question is C. Density is a physical property due the ratio between a substance's mass and volume. A physical property is something that does not change the chemical composition of the substance being observed. When you measure density, you place your subject on the...Read More

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The answer to this is letter C. You need to solve in order to get this answer. There are only two steps so you do not have to make a lot of effort to solve. The first step is to divide your grams and then divide by molar mass. This will become 118.082 grams divided by 39.1 grams. The answer...Read More

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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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