Q: I have a new situation: Mike was preparing for his chemistry exam. To see the chemistry concepts in practice he conducted two tests, test A and test B. In test A he used two liquid reactants evenly dispersed, but in test B he used one liquid reactant and one solid reactant. He was surprised to see that two tests had very different results. But I can use this background: Many reactions take place in solution or in the gas phase, where the reactants are evenly dispersed throughout a homogeneous mixture. However, for reactions in which one of the reactants is a pure solid or liquid (meaning that this reactant is not already mixed together with any other reactants), reactivity only occurs at the surface, where particles of the solid or liquid reactant come into contact with particles of the other reactants. All of the molecules or ions in the interior of the pure substance will not be colliding with the other necessary reactants, so they are not really contributing to the overall rate of the reaction. However, increasing the surface area will increase the frequency of potentially reactive collisions, because more reactant particles will be in contact with the other necessary reactants. What is an answer for this question: In which test the reactants would have greater surface area to offer for reactions, test A or test B?
A: test A
Question: I have a new situation: Two new elements have been discovered by scientists and added to the periodic table. After discussion among their peers, scientists finally decided where to add these new elements. Although both elements are in the same row, Lozopine is on the far right side of the row, and Tralokine is in the middle. But I can use this background: The general trend in electronegativity is that the value increases from left to right across a row in the periodic table and decreases down a column. The most electronegative element is fluorine, which has a value of 4.0. As discussed in the lesson "Trends in the Periodic Table," electronegativity increases across a row as the number of protons in the nucleus increases and therefore has a stronger pull. Electronegativity decreases down a column due to an increased effect of electron shielding in larger atoms. What is an answer for this question: Does Tralokine have a stronger or weaker pull than Lozopine?
Answer: weaker
[Q]: I have a new situation: Two neighboring dairy farms produced milk for half the state. Berry farm produced conventional milk, while Rose farm produced organic milk. But I can use this background: Compared to conventional milk production, organic milk production tends to have lower eutrophication potential per ton of milk or per hectare of farmland, because it potentially reduces leaching of nitrates (NO3) and phosphates (PO4) due to lower fertilizer application rates. Because organic milk production reduces pesticides utilization, it increases land use per ton of milk due to decreased crop yields per hectare. Mainly due to the lower level of concentrates given to cows in organic herds, organic dairy farms generally produce less milk per cow than conventional dairy farms. Because of the increased use of roughage and the, on-average, lower milk production level per cow, some research has connected organic milk production with increases in the emission of methane.Animal welfare issues vary among dairy farms and are not necessarily related to the way of producing milk (organically or conventionally). What is an answer for this question: Which farm had production with lower eutrophication potential per ton of milk or per hectare of farmland?
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[A]: Rose
input: Please answer the following: I have a new situation: Mark was studying the effect of Sun's radiations on Earth. To that end, he studied Sun's radiations, which he labeled as rad A. Then he studied Earth's radiations, which he labeled as rad B. He also learned that longer wavelength radiations would produce heat. But I can use this background: Solar radiation (or sunlight) is the energy Earth receives from the Sun. Earth also emits radiation back into space, but at longer wavelengths that we cannot see. Part of the incoming and emitted radiation is absorbed or reflected by the atmosphere. In May 2017, glints of light, seen as twinkling from an orbiting satellite a million miles away, were found to be reflected light from ice crystals in the atmosphere. What is an answer for this question: Which radiation is visible, rad A or rad B?
++++++++++
output: rad A
Please answer this: I have a new situation: Dean and Paul both went to volunteered in Africa. They had a blood test when they came back. Paul had been infected with the HIV virus while Dean was healthy and clean. But I can use this background: The Human Immunodeficiency Virus ( HIV ) is the virus that causes Acquired Immunodeficiency Syndrome ( AIDS ). Most researchers believe that the HIV originated in sub-Saharan Africa during the 20th century. HIV is transmitted by sexual contact and by contact with infected bodily fluids, such as blood, semen, breast milk, and vaginal secretions. It is also passed from mother to fetus. HIV is now a pandemic , with an estimated (as of 2008) 38.6 million people now living with the disease worldwide. It is estimated that AIDS has killed more than 25 million people since it was first recognized in 1981. For further information about HIV/AIDS, see the CDC (Centers for Disease Control and Prevention) web site at http://www.cdc.gov/hiv/resources/factsheets/ . What is an answer for this question: Which friend doesn't have a virus that is transmitted by contact with infected breast milk?
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Answer: Dean
Question: I have a new situation: David works for the government as a statistician. He had to produce a report for the coming annual meeting. This year he is thinking about a report with some lifestyle suggestions for middle adulthood population. To make it easier to understand the needs of middle adulthood population he would compare it with a group who are in their twenties. He labeled the first group as group A; and the latter group as group B. But I can use this background: Middle adulthood lasts from the mid-30s to the mid-60s. During this stage of life, many people raise a family and strive to attain career goals. They start showing physical signs of aging, such as wrinkles and gray hair. Typically, vision, strength and reaction time start declining. Diseases such as type 2 diabetes, cardiovascular or heart disease, and cancer are often diagnosed during this stage of life. These diseases are also the chief causes of death in middle adulthood. What is an answer for this question: Which group would most likely show signs of aging, group A or group B?
Answer:
group A