Solve question 26 and 27 Scientists have identified two similar molecules as water-like candidates to search tor onother planets: methane and methanol. Answer the questions below, to help explain theimportance of the investigation.Methane, CH,Methanol, CH,0H.H.H-C-HH-C-O-HH.24. List three properties scientists should observe or measure for these substances.25. Explain your choices from #24: how do these properties relate to a substance'simportance for life?26. What results should scientists see for each of these properties if the substance is similarto water?27. Which substance, methane or methanol, do you think would show the results youpredicted in #26?

Answered: Image /qna-images/answer/cf3ccfec-7e05-48e7-bf7e-0eb0de2cb61e.jpg

Answered: 26. What results should scientists see…

Chemistry In Focus

7th Edition

ISBN:9781337399692

Author:Tro, Nivaldo J.

Publisher:Tro, Nivaldo J.

Chapter12: The Liquids And Solids Around Us: Especially Water

Section: Chapter Questions

Problem 57E

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1. When a chunk of dry ice (solid carbon dioxide) is placed out in the air, the solid gradually disappears and a gas is formed above the solid. Does the molecular art drawn below indicate that a chemical or physical change has occurred? Explain your choice. In the illustration below, in the solid CO2 the molecules were held together, and upon exposure to air the molecules became free,explain what happened based on the bonds 2. The inexpensive preparation of nitrogen-containing fertilizers begins with mixing together two elements, hydrogen and nitrogen, at high temperature and pressure in the presence of a metal. Does the molecular art depicted below indicate that a chemical or physical change occurs under these conditions? Explain yourchoice and include in your explanation the bonds.
1. Give two reasons why one substance might have a greater density than another substance from a molecular point of view. Explain each reasons. 2. What would happen to the water level in a glass if the ice cube floating in a glass of water will be completely melted? 3. Why does a balloon filled with helium gas rise? Is there a lower limit on how much helium gas it must contain before it begins to rise? Explain.
The safety of swimming pool water is maintained by ensuring a 2 ppm chlorine content. How many kilograms of chlorine is needed to keep an olympic size swimming pool water (V = 2.5 x 106 L) safe?
Why is tap water a homogenous mixture, whereas distilled water is a pure substance?
What materials will the teacher and the students need to complete a lesson on mixing substances in a 5th grade classroom based on the below standard and learning objective? Standard Conduct an investigation to determine whether the mixing of two or more substances results in new substances. Learning Objective Given a variety of substances and safety equipment in a classroom setting, students will be able to conduct an experiment to mix two or more substances and observe the results. They will be able to correctly identify whether a new substance has been formed as a result of the mixing, based on observable changes such as color change, formation of a precipitate, or change in temperature, with at least 80% accuracy.
If you are requested to compound 150 mL of the Concentrated Peppermint Water in the Laboratory from the original amount of 500 mL of Concentrated Peppermint water with the given formulation: 10.0 mL of Peppermint Oil, 25.0 g talc, and 500 mL of 90% ethyl alcohol. Calculate for the volume of Peppermint Oil required for the preparation. a 3.00 mL b 2.47 mL c 3. 68 mL d 3.21 mL
What are the uses of recrystallization, decolorization, and sublimation? Give examples of each.
A solution is prepared by dissolving 12.5 g of KBr in 20 mL of water at 60 °C(see Figure 9.3). Is this solution saturated, unsaturated, or supersaturated? What will happen if the solution is cooled to 10 °C?
The minimum level of mercury levels in water considered safe is 1 part per billion (ppb) by weight. Ifyou did an analysis and found that the concentration was 0.59 parts per billion. What quantity of mercuryin grams was present in 8.52 L of the water, the density of which is 0.998 g/ml? (1 ppb Hg = 1 ng Hg per1 g water)
You have two distinct gaseous compounds made from element X and element Y. The mass percents are as follows: Compound I: 30.43% X, 69.57% Y Compound II: 63.64% X, 36.36% Y In their natural standard states, element X and element Y exist as gases. (Monatomic? Diatomic? Triatomic? That is for you to determine.) When you react gas X with gas Y to make the products, you get the following data (all at the same pressure and temperature): 1 volume gas X + 2 volumes gas Y 2 volumes compound I 2 volumes gas X + 1 volume gas Y 2 volumes compound II Assume the simplest possible formulas for reactants and products in the chemical equations above. Then, determine the relative atomic masses of element X and element Y.
Look at Table 2.8 in your text. How do the densities of gases, liquids, and solids compare with one another? Use microscopic pictures to explain why this is true.
True or false? Mixtures always result in a chemical reaction because they consist of two or more substances and thus combine to create a new product.

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26. What results should scientists see for each of these properties if the substance is similar to water? 27. Which substance, methane or methanol, do you think would show the results you predicted in #26?