Students pull samples of matter from an ecosystem and place them in an electron microscope. Electron microscopes allow the students to zoom in on object to extraordinary magnifications. Three of the samples are shown below:Which of the following three pieces of evidence are true concerning the samples above?(Choose 3 Answers).Sample C is a Diatomic molecule because two of the same atom are bonded together. Sample C is a Diatomic molecule because two of the same atom are bonded together. Sample A is a compound since there are many atoms bonded together. Sample A is a compound since there are many atoms bonded together. Sample B is a compound since there is a set ratio and pattern for the atoms. Sample B is a compound since there is a set ratio and pattern for the atoms. Sample A is an element since all of the atoms are the same type of atom. Sample A is an element since all of the atoms are the same type of atom. Sample C is a compound since multiple atoms of different types are bonded together.

Since the gas in your graduated cylinder is a mixture of butane and water vapor, you must determine the partial pressure of the butane, pbutane, alone. to do this, consult a reference and record the partial pressure of the water vapor, pwater, at the temperature you recorded. use the following formula to compute the partial pressure of the butane. pbutane = atmosphere - pwater use the following combined gas law formula and compute the volume that the butane sample will occupy at stp. (hint: convert both temperatures to kelvin.) pbutane x voriginal = pstandard x vfinal troom tstandard use the following ratio and proportion formula to determine the mass of butane needed to occupy a volume of 22.4 l at stp. grams of butane you used “x” grams of butane ml of butane corrected to stp = 22,400 ml compute the theoretical molar mass of butane based on its formula and the atomic masses on the periodic table. compare your experimental results from #3 to the theoretical value of #4, computing a percent error of your findings using this formula: % error = measured value - accepted value x 100 accepted value use the following ratio and proportion formula to determine the mass of butane needed to occupy a volume of 22.4 l at stp. need asap

Carbon-14 undergoes radioactive decay in the reaction above. determine the type of radiation emitted in this reaction and describe what is happening to the nucleus during this reaction.

Asuspension of yeast cells is being grown under anaerobic conditions such that glucose is degraded to ethanol and carbon dioxide. if one wishes to follow this process by monitoring the release of 14co2, at which positions in the glucose molecule would the 14c label need to be incorporated?