Predict the type of bonding that holds the following atomsmolecules .pdf

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BaO, CdS, and FeO contain ionic bonding between the metal and nonmetal atoms. The metals exist as cations in a +2 state, while oxygen exists as anions with a -2 charge. Brass contains metallic bonding since it is a copper-zinc alloy of only metals. Solid neon contains van der Waals forces of attraction since neon is an inert gas. Polyethylene and AIP contain covalent bonding, with polyethylene being a polymer of ethylene molecules and AIP existing as solid plastics.

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Predict the type of bonding that holds the following atoms/molecules together in the following
solid materials. Briefly explain why you have made the prediction for each material. Where
appropriate include calculations. BaO CdS FeO Brass (a copper rich copper-zinc alloy) Solid
neon Polyethylene (a largely linear thermoplastic polymer) AIP
Solution
In Bao , CDs , FeO ionic bonding exist as it is between metal and nom metal ..Ba , Cd , Fe, exists
as cations in +2 state and O as -2 anion.
In Brass metallic bonding exist since only metals are present.
In solid neon vanderwalls force of attraction exists since it is inert gas .
In polyethylene and Aip covalent bond exist . Polyethylene is polymer of ethylene. And AIP
exist as solid plastics.

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Write C++ variable declarations to create one int variable called number, two real variables called signal and pi where pi is initialized to 3 .14159, and two bool variables called flag and bit where flag is initialized to false. No main () program is necessary and comments are optional. Be sure to strike the Enter key before you click on the Save button. Solution int number; double signal; double pi=3.14159;//initialized bool flag=false;//initialized bool bit;.

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Why do a lot of scientist feel like god doesn\'t exist? What is their reasoning for? What evidence supports their claims? Why do a lot of scientist feel like god doesn\'t exist? What is their reasoning for? What evidence supports their claims? Solution A lot of scientist feels like god does not exist because of evolutionary and natural selection aspects of species in their natality & mortality and during their individual development. Every species evolution is scientifically correlated with various evidences that species was not created by a specific \"creator\" because species has created from biological matter finally from prokaryotes to eukaryotes. Some scientists have supported that the belief of human growth and emotions are completely hormone related but not due to \"creator or God\". There are other evidences as described that the natural selection is not associated with \"myths & belief of God\" and it has completely different to explain the kind of adaptations acquired by the species during evolution. Theological aspects are independent of structural adaptations developed by the individual species as these adaptations are completely relies upon genetic variations Evolution in terms of natural selection and natural theology is not a common topic of conversation because it is an offensive subject a better conversation due to insufficient evidence about the origin of species and creation. Origin of species either by a creator or by nature is still in a great religious debate as various scientific hypotheses are describing that evolution started from aquatic region to land stage according to natural selections and genetic variations but various philosophical, religious and mythological beliefs are describing that evolution is from a unknown creator and nature. There is no availability of adequate evidence to resolve this great debate so people might just not or talk about creation or evolution at all..

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What is the United States Comparative Advantage....please be specific if you can.. Solution United States is richly endowed with highly educated workforce and technologically sophisticated machinery and equipment. These endowments help United States in producing human capital and physical capital intensive goods at lower opportunity cost vis-à-vis rest of the world. Production at lower opportunity cost implies that United States has comparative advantage in production of human and physical capital intensive goods. Semi-conductor, industrial machines, telecommunication equipments, civilian aircraft, organic chemicals are some product categories that are both physical and human capital intensive and if we analyze the export data of United States then we can see that top exports of United States comprises of these very items. In fact, if we list the top 15 export items in United States then almost all items comprises of goods that are capital intensive in nature both in terms of physical capital as well as human capital. Thus, United States has comparative advantage in production of capital (both human and physical) intensive goods..

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true/ false 1, Sampling is always wrong because it is stupid trying studying 300 million people with a sample of 1500 2. Probability samples are the same as accidental samples. 3. The most important feature of probability sampling is thatall members of the population have an equal chance of representation 4. Snowball samples accumulate subjects through chains of referrals and are most commoaly used in qualitative research 5. Stratification is the process of grouping the members of a population into relatively homogencus strata before sampling 6. Sampling distributions are the same as frequeney distributions in all material respects. 7. Samples generate parameter estimates while populations generate statistics 8. The most carefully selected sample is almost never a perfect representation of the population from which it was gathered. Some degree of sampling error always exists. All naturally or randomly oocurring empirikal phenomena are normally distributed. 10. In general, non-probability-sampling methods are not regurded as less reliable than probability 9. samples. 11. Survey research involves the administration of questionnaires to a sample of respondents selected from some population 12. Questionnaires may be administered in four different ways: face-to-face interviews, telephone surveys, mail-surveys, and internet surveys. 13. Face-to-face interviews are the very best method of survey research in all circumstances 14. In survey research, response rates are the proportion of the sample that actually completes the -15. An experiment is a method of scientific inquiry in which an independent variable is deliberately manipulated in order to observe its effect on the dependent variable Solution 1) TRUE that is why we have sampling errors that we take into account in the calculation . Still some sampling errors are unavoidable. 2)False probability sampling is a sampling technique in which probability of getting a sample is calculated. while accidental sampling does not meet this criterion. 3) FALSE in probabilistic sampling all members have equal chance of selection 4) TRUE it is right that snow ball sampling accumulates subject through chain of accumulation but they are biased because they give people with higher social connection higher chance of selection. This is non probabilistic sampling and used in qualitative research generally for those groups which are hidden . These are not accessible to researchers through other methods..

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