Science

Science Questions and Answers

Science

Although on the surface it seems that computers are very sophisticated devices, capable of accomplishing complex tasks, in fact, computers can only do a limited number of very simple tasks on a...

Latest answer posted September 19, 2015 9:37 pm UTC

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Science

Any substance dissolved in another substance is considered a solution. The solvent (the stuff that does the dissolving) in most household substances is water. So, anything dissolved in water would...

Latest answer posted June 21, 2018 5:01 pm UTC

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Science

In a galvanic cell, the reason the voltage is generated is because of the combined electric potentials of the two metals in the metal sulfate solution of the electrolyte. If you increase the...

Latest answer posted January 15, 2012 10:20 am UTC

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Science

Similarities ... → Both involve in production of energy → Both involve the exchange of gases → Both the process takes place in cell organelle which was considered as endosymbiotic organism. They...

Latest answer posted June 23, 2012 5:12 pm UTC

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Science

First, we should recognize that the formula (H2SO4) is not hydrochloric acid. The root "chlor" in "hydochloric acid" denotes the presence of chlorine, which is not present in H2SO4. Hydrochloric...

Latest answer posted January 19, 2014 8:57 pm UTC

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Science

Sodium chloride (NaCl) and silver nitrate (AgNO3) are both solids that are highly soluble in water. They give a double displacement reaction where the ions switch places and give sodium nitrate...

Latest answer posted October 20, 2012 2:44 pm UTC

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Science

Most products and materials that would be found in your home are compounds, mixtures or alloys. Only the most stable elements will resist reacting over time. Metals found in the home are often...

Latest answer posted January 21, 2016 10:24 pm UTC

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Science

Saturated, unsaturated and supersaturated refer to three different conditions of a solution. A saturated solution contains the maximum amount of solute that will dissolve at that temperature. Any...

Latest answer posted November 19, 2015 4:27 am UTC

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Science

One reason for sudden hair and nail growth could be due to an improvement in your overall health. There are many vitamin deficiencies that can cause your hair and nails to grow slowly. Sometimes...

Latest answer posted May 25, 2010 8:24 am UTC

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Science

There are two paramount differences between art and science. The first is that art is subjective while science is objective. The second is that art expresses knowledge, most often in the form of...

Latest answer posted June 17, 2010 4:17 am UTC

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Science

The given chemical equation is for reaction between phosphorus (P) and oxygen (O2). The product is phosphorus pentoxide (P2O5). The reaction is : P + O2 -> P2O5 A well-balanced chemical...

Latest answer posted May 5, 2016 9:20 am UTC

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Science

There are a couple of ways to determine if a reaction is exothermic or endothermic. Endothermic meaning that heat is added to the reaction to make the reactants interact and exothermic meaning heat...

Latest answer posted September 29, 2010 8:45 am UTC

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Science

The golgi apparatus contains vesicles and folded membranes and is involved in cellular transport. It is a packaging organelle. The golgi apparatus packages proteins into vesicles inside of the cell...

Latest answer posted July 11, 2016 8:43 pm UTC

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Science

Well, the short answer is no. Both animals and plants have evolved extensive mechanisms which prevent this from happening. First, sperm have to find their way to an egg. In mammals, when the egg is...

Latest answer posted August 23, 2011 3:59 am UTC

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Science

Advantages: Bar charts are pretty easy to interpret, and there's a very clear relationship between size and value that allows easy comparison. They're simple to make and most people have experience...

Latest answer posted July 31, 2016 11:43 pm UTC

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Science

Human beings make use of a number of excreta (waste products of the metabolism) produced by plants. Here are a few of them: Oxygen is the most useful excreta of plants and is essential for life on...

Latest answer posted March 6, 2016 2:27 pm UTC

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Science

The given reaction is CuO(s) + H_2(g) -> Cu(s) + H2O(l) In this reaction, copper (II) oxide reacts with hydrogen to generate copper metal and water. This is an oxidation-reduction reaction, in...

Latest answer posted May 11, 2016 1:19 am UTC

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Science

The temperature and altitude relationship depends upon the altitude of a location. In general, as we go higher, the temperature falls. This is the reason, mountains have lower temperature and...

Latest answer posted February 10, 2016 5:43 pm UTC

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Science

While the functions and applications of a computer are almost endless, we can sense four primary purposes that are all linked to data (information): Entering data, manipulating data, viewing...

Latest answer posted July 6, 2009 9:23 pm UTC

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Science

The reliability of an experiment is the consistency of the results. The degree of reliability is shown by the closeness of agreement of data for several repetitions of the experiment. Reliability...

Latest answer posted November 29, 2015 9:03 pm UTC

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Science

The most common definition of symbiosis is a mutually beneficial relationship between two different species closely interacting with each other. These interactions tend to be long term with the...

Latest answer posted May 4, 2016 10:04 am UTC

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Science

The empirical formula of a chemical compound is CH2O. The molar mass of carbon is 12, the molar mass of hydrogen is 1 and the molar mass of oxygen is 16. The empirical formula of a compound is the...

Latest answer posted January 31, 2012 10:46 am UTC

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Science

The idea that spiders lay eggs in or under human skin is a surprisingly common myth, but it's just that, a myth. All spiders are free-living hunters, not parasites. Spiders cannot lay eggs or live...

Latest answer posted August 27, 2011 10:29 pm UTC

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Science

Based on the energy requirements or generation, reactions can be classified as either endothermic or exothermic. The reactions which need energy to proceed are known as endothermic reactions. The...

Latest answer posted May 11, 2016 12:18 am UTC

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Science

Using a pedigree to determine the genotype of an individual for a particular trait, based on the individual’s family history can be done via the following steps. Please note that these steps are...

Latest answer posted February 22, 2016 7:48 pm UTC

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Science

It depends on the source of the hemorrhage. Exsanguination is the term for bleeding to death. If the bleeding is from an arterial source, death may only take 20 seconds to a couple of minutes. Keep...

Latest answer posted June 15, 2010 5:08 pm UTC

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Science

Parallel circuits are used in homes because the loads can be operated independently of each other. That means that you can have an electrical item turned on and running without needing to have all...

Latest answer posted November 21, 2015 1:35 am UTC

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Science

Some individuals do in fact bruise easily, they may have an ascorbic acid(Vitamin C) deficiency or some coagulopathy. Perhaps they are taking a blood thinner medication like Coumadin, ASA, or...

Latest answer posted June 5, 2010 10:10 am UTC

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Science

While consulting a veternarian is probably the wisest step to take, there is some general information that is available to you from different sources. One of the basic considerations is the breed...

Latest answer posted November 26, 2009 2:38 am UTC

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Science

A material can be a poor conductor of heat, electricity, or both. A poor conductor means that the substance will not easily conduct heat or electricity (or both) as easily as a conductor. For...

Latest answer posted July 8, 2018 12:07 pm UTC

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Science

Data structure, in simplest terms, is data organization for its efficient use. Data structures can be of various types, depending on the application. For example, databases use different data...

Latest answer posted May 11, 2015 8:05 am UTC

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Science

The four types of consumers in ecology are herbivores, carnivores, omnivores, and decomposers. Herbivores are consumers who only eat vegetables, plants, grass, or some type of vegetation. An...

Latest answer posted December 5, 2015 8:34 pm UTC

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Science

The simple answer to your question, "What will happen..." is nothing will happen. The danger of the "air bubble" is not in intramuscular injections, the danger occurs if the injection is...

Latest answer posted July 2, 2009 9:49 am UTC

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Science

This question can be solved using the classic equation of motion: distance = velocity * time. We have two known parameters and one unknown parameter; however, in order to solve the problem we must...

Latest answer posted February 23, 2012 10:20 pm UTC

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Science

Pressure and temperature are related to each other by Gay-Lussac's Law. This law says that P1T1=P2T2, or the initial pressure multiplied by the initial temperature is equal to the product of the...

Latest answer posted May 4, 2010 3:08 am UTC

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Science

From smallest to largest: nucleotide, gene, chromosome, genome. Nucleotides are the smallest building blocks of DNA. There are four nucleotides (A, G, T, C) which arrange in pairs to form the long...

Latest answer posted May 9, 2016 9:40 pm UTC

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Science

Sound and light are similar in that both are forms of energy that travel in waves. They both have properties of wavelength, freqency and amplitude. Here are some differences: Sound can only travel...

Latest answer posted February 25, 2016 2:51 am UTC

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Science

If a baby's mother has an O positive blood type and a man has B positive blood type, it is possible for that man to be the baby's father if the child has O type blood or B type blood (either...

Latest answer posted May 12, 2016 3:41 pm UTC

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Science

The ranking of the given items from largest to smallest is as follows: Organism > Cell > Nucleus > Chromosome > Gene > DNA DNA is a molecule that can be thought of as the blueprint...

Latest answer posted December 7, 2018 12:04 pm UTC

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Science

Yes. If the amino acid sequence of two organisms are similar, then the organisms’ DNA sequences would also be similar. The central dogma of biology states that DNA contains the key for RNA, which...

Latest answer posted February 9, 2016 1:09 am UTC

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Science

The process that happens to both potato slices is called osmosis, which is a diffusion of water across the semipermeable membrane the potato slice cells possess. The water will either go into the...

Latest answer posted January 22, 2012 5:13 am UTC

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Science

There are many advantages to classification, both in science and "out" of it. Classification allows us to see relationships between things that may not be obvious when looking at them as a whole....

Latest answer posted November 21, 2015 2:02 am UTC

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Science

It's important for scientists to know the properties of matter because all things are made up of matter. Each type of matter has different physical characteristics and scientists need to know and...

Latest answer posted November 18, 2015 8:36 pm UTC

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Science

When humans breathe in air, most of the time it is through the nose, though we can also breathe in through our mouths. Assuming air comes in through the nose, the correct order is: Nasal cavity....

Latest answer posted August 30, 2016 4:52 pm UTC

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Science

The cell theory is an explanation of what cells are and why they exist. The three main parts are: 1) All living things are made of cells and their products, 2) New cells are created by old cells...

Latest answer posted July 17, 2012 2:55 pm UTC

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Science

The number of bones a person has in their body generally depends on their age. A human newborn baby has approximately 270 bones in his or her body. As the person ages and develops, some of the...

Latest answer posted November 6, 2013 12:02 am UTC

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Science

Alternatively we can use the conversion of gravitational potential energy (maximum at top of swing with minimum kinetic energy because it is momentarily motionless) to kinetic energy at the bottom...

Latest answer posted July 5, 2011 5:58 pm UTC

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Science

2-butanol is a clear, organic, secondary alcohol. That means the hydroxyl group is attached to the second carbon atom. The difference in the R-2-butanol and the S-2-butanol has to do with the...

Latest answer posted January 21, 2016 12:07 am UTC

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Science

The following are the ionization energies for the elements in the second period: Lithium - 520 Beryllium - 900 Boron - 801 Carbon - 1087 Nitrogen - 1402 Oxygen - 1314 Fluorine - 1681 Neon - 2081...

Latest answer posted May 11, 2013 12:55 pm UTC

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Science

RAM or Random-Access Memory is a type of computer data storage and stores the files that are in use while the computer is running. These files may include various programs such as operating system,...

Latest answer posted March 7, 2016 2:50 pm UTC

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