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Chemistry Questions and Answers (Q&A)

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

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It can't be separated because it is CHEMICALLY COMBINED

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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 forms.

The pollution coming from cars is just one example. There is also pollution coming from various factories. There are some people who are trying their best to reduce the production of nitrogen oxide but this is not always easy because of all the things that people consider to be their “needs” in this world.

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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 was higher.

However, when more businesses came into view, the demand grew lower and lower as more firms catered the product. This is how competition works. The more the sellers, the lower is the demand for a single firm. This also plays a major part in the investment world when entrepreneurs are considering a new startup.

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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 physical change but the chemical composition remain unchanged.

Slicing a carrot is also a physical change. Chemical composition remain unchanged.

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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 are unmatched would end up becoming protons?

This can be a problem because this means that not all protons can be saved. Neutron to proton mass has made the world more stable overall. A lot of experts do not want to think about how life could be if there are some differences. There are still a lot of scientists and researchers who would like to know more about this.

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The correct answer is B. Isotopes are atoms having the same number of protons of the same element but with a different number of neutrons. Base on the choices, letter B is the only option that follows the description of an isotope. Choice A and choice D have different elements so we can cross them out Choice C has the same elements but there is no difference in mass.

Therefore, choice B is the isotope. It has the same element with different mass or number of neutrons. In conclusion, to check easily if you will encounter questions about isotopes next time, look first if the given examples have the same element but do not have the same number of neutrons.

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At constant temperature, particles of solute settle down. True solutions are homogeneous solutions containing a mixture of two or more substances dissolved in a solvent. The particle size of the solvent is less than 9m or 1mm.

A simple example of a true solution is a solution of sugar in water. True solution and colloidal solution are two types of solutions, which is based on their distinct properties. True solution and colloidal solution differ in many properties or appearance of the solution. A true solution is homogeneous.

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Home insurance, additionally generally called homeowner's insurance, is a kind of property insurance that covers a private living arrangement. It is an insurance arrangement that joins different individual insurance securities, which can incorporate losses at one's home, its substance, loss of other individual belonging of the homeowner, and in addition accountability insurance for losses that may occur at the home.

The difference between the HO-2 and HO-4
HO-2 – Assigns”fundamental shape" homeowners insurance strategy that gives scope on a marked area " premise. Any loss that occurs outside this place would not be secured by this approach.
HO-4 – This arrangement portrays a tenant’s/renter’s insurance strategy.
In simpler terms, the HO 2 is written on a broad form basis and covers the owner of dwelling, whereas HO 4 is a renter’s policy.

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