(Question)
Q: Which common oxidizing agent can be used to oxidize alcohols? Read this paragraph and choose the correct option from the provided answers: Oxidation-reduction reactions are of central importance in organic chemistry and biochemistry. The burning of fuels that provides the energy to maintain our civilization and the metabolism of foods that furnish the energy that keeps us alive both involve redox reactions. All combustion reactions are also redox reactions. A typical combustion reaction is the burning of methane, the principal component of natural gas (Figure 5.5 "The Burning of Natural Gas"). CH4 + 2O2 CO2 + 2H2O In respiration, the biochemical process by which the oxygen we inhale in air oxidizes foodstuffs to carbon dioxide and water, redox reactions provide energy to living cells. A typical respiratory reaction is the oxidation of glucose (C6H12O6), the simple sugar we encountered in the chapter-opening essay that makes up the diet of yeast: C6H12O6 + 6O2 6CO2 + 6H2O Organic chemists use a variety of redox reactions. For example, potassium dichromate (K2Cr2O7) is a common oxidizing agent that can be used to oxidize alcohols (symbolized. Choices: - hydrogen dichromate - potassium chloride - hydrogen chloride - potassium dichromate A:
(Answer)
potassium dichromate

(Question)
Q: Hotspots can be used to tell the speed and direction that what object is moving? Read this paragraph and choose the correct option from the provided answers: Hotspots can be used to tell the speed and direction that a plate is moving. Choices: - electrons - crystals - glaciers - plates A:
(Answer)
plates

(Question)
Q: What kind of scientist is concerned with facets of geomorphology, topography, vegetation, and climate? Read this paragraph and choose the correct option from the provided answers: Many soil scientists work both in an office and in the field. According to the United States Department of Agriculture (USDA): "a soil scientist needs good observation skills to analyze and determine the characteristics of different types of soils. Soil types are complex and the geographical areas a soil scientist may survey are varied. Aerial photos or various satellite images are often used to research the areas. Computer skills and geographic information systems (GIS) help the scientist to analyze the multiple facets [1] of geomorphology, topography, vegetation, and climate to discover the patterns left on the landscape. " Soil scientists play a key role in understanding the soil's past, analyzing present conditions, and making recommendations for future soil-related practices. Choices: - geophysicist - atstronomer - geologist - soil scientist A:
(Answer)
soil scientist