Northouse - Self-assessmentReflection Ch 9-10

5. The car you have been driving has a posted fuel consumption of 10.0 L/100 km (city) and 7.1 L/100 km (highway) according to the EnerGuide information. Overall, your actual fuel consumption has averaged 10.5 L/100 km. a) Is this better or worse than the posted fuel consumption? b) Provide three reasons why your actual fuel consumption may be different from the posted consumption. c) List three ways in which you could improve your fuel consumption (other than buying a new carl).

ery Ass Chemistry - S2- MI / Traveling Through Media / Lesson 180 11.1H +1H On+ O ABe O iH OHe 4. 2Не 3 On

02-Sadra is a college student studying chemistry. In one of his labs, he needs to add 10 grams of sodium carbonate to a mixture and analyze the results. When he is measuring the chemical on a weight sensor, he notices the amount of Na2co3 he is weighing is much larger than everyone else's, yet the sensor reads 10 grams. He dumps the chemicals back into the container and reweighs it, only to get the same result. Which of the following is accurate in describing Sadra's weight sensor? Not reliable, and not valid O Not reliable, but valid O Reliable, but not valid Reliable and valid Question 10 02-Dr. Narayan conducted a research study about the effects that coffee has on the brain. However, he told participants that it was an on-going survey on the amount of coffee they consumed on a day-to-day basis. This type of study is known as deception. Is it legally allowed in this situation and why? O Yes, but only if Dr. Narayan informed the participants of the true meaning of the study at the…

What is green chemistry? Choose the BEST answer. O Chemistry that uses only recycled chemicals. O Chemistry that makes something green in color. O Chemistry that comes from plants or uses plant materials. O Chemistry that uses non-toxic, non-harmful chemicals.

12. Consider the following statements: 1. The pyramid of biomass in a pond ecosystem is inverted 2. The pyramid of energy is inverted in an ocean ecosystem Which of the above statements is/are correct? [A] 1 Only [B] 2 Only [C] Both 1 & 2 [D] Neither 1 nor 2

Fill in the box with the answer and provide explanation.

How does chemistry relate to wood, provides energy, and where or how the wood is used? Give a pros and cons for this energy source. Is wood renewable and/or sustainable or not? And if material is needed to make the wood functional, what is the source of those materials?

K Maya Paniagua - RC Ch 10 HW.p x E The State of Nature & the Social X The School District of Palm Beac + kamihq.com/web/viewer.html?state=%7B"ids"%3A%5B"1_9_gDqlBsnEI9NLSL9h9ixQGOBwtxhyJ"%5D%2C*action"%3A*o. a Paniagua - CI. A Kami Uploads Maya Paniagua - RC Ch 10 HW.pdf 134% 10. A compound with the empirical formula CH has a molar mass of 78 g/mol. Determine its molecular formula. 11. A compound is found to consist of 43.64% phosphorus and 56.36% oxygen. The molar mass of the compound is 284 g/mol. Find the molecular formula of the compound.

As temperature decreases, which takes precedence? Energy dispersal or positional randomness

ᴡʀɪᴛᴇ ᴛʜᴇ ᴄᴏᴍᴘʟᴇᴛᴇ ʙᴀʟᴀɴᴄᴇᴅ ᴇQᴜᴀᴛɪᴏɴꜱ ᴏꜰ ᴛʜᴇ ꜰᴏʟʟᴏᴡɪɴɢ ᴄʜᴇᴍɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴꜱ. ꜱʜᴏᴡ ʏᴏᴜʀ ꜱᴏʟᴜᴛɪᴏɴ

h = 6.63 x10-34 J.s 760mmHg = 1 atm Na= 6.02 x1023 particle/mol 1 A' = 10-10 m R = 0.082 Latm/K.mol = 8.3145 J/K.mol c = 3.0 x 10° m.s- 1e= 1.602x 10-19 C 1 Latm = 101.3 J 1 cal = 4.18 J T (K) = T(°C) + 273.15 RH = 2.179 x 10-15) mass of e = 9.109 x10-31 kg For the reaction 2 SO2 (g) O2 (g) -25sos (g) Kc=280 at 1000 K. What is standard Gibbs free energy change for the reaction at this temperature? Select one: O a. -2.04 x 10 kl/mol O b. 4.68 x 104 J/mol O C.-1.02 x 10* J/mol O d. -2.04 x 104 J/mol O e.-1.02 x 10* kl/mol

Eastern loggerhead shrike is a critically endangered species of bird in Canada. Its population has been declining since the 1960s, and it has been speculated that habitat loss, pesticide usage combined, and climate change have affected the shrike population size.    In 2004, there were approximately 70 loggerhead shrikes breeding in Canada. Over the next five years, 90 new shrikes were born, 60 died, and 24 left the area.    Calculate the change in the population of eastern loggerhead shrike between 2004 and 2009.    Express your answer rounded to the nearest whole number.

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Explain why some “Green Energies” are not so green by giving an example.

onsider a cloudless day on which the sun shines down across the United States. If 2751 kJ of energy reaches a square meter m²) of the United States in one hour, how much total solar energy reaches the entire United States per hour? The entire area of the United States is 9,158,960 km². solar energy per hour: kJ/h TOOLS x10 218 PM 9/3/2021 64 F Clear ENG

Explain how we know human activity contributes to global warming that causes sea level rise. What is a change people can make to begin reduce their carbon footprint.  In 1-2 sentences write a caption for the graph

make a statement of the problem and a hypothesis for both questions, the statement of the problem should be starting with “This capstone research aims to determine_______”

Example: A distillation model containing a certain percentage of water was taken from the model 25 ml and the amount of water that was discarded after the separation process was 2 ml Calculate the percentage of water that was isolated from the model

Question 20 of 26 > While driving your rental car on your vacation in Europe, you find that you are getting 13.4 km/L of gasoline. What does this value correspond to in miles per gallon? 13.4 km/L = mi gal about us privacy policy terms of use contact us help careers DD F12 F11

I understand this answer, but it wasn't one of the multiple choices they gave me.

take in mind the guide (appendix b)

The costs of petroleum and natural gas have increased dramatically since the early 1970s, and there is some question about their continued long-term availability. List as many alternative energy sources as you can think of, being as creative as you can, and then go back and suggest possible drawbacks to each one.

Question 9 of 12 Consider a cloudless day on which the sun shines down across the United States. If 2529 kJ of energy reaches a square meter (m) of the United States in one hour, how much total solar energy reaches the entire United States per hour? The entire area of the United States is 9,158,960 km². kJ/h home end insert delete CE prt sc F10 F9 F11 F12 + num backspace lock 8. 6. %3D P. 7. 8.

8. A student made a series of measurements of Mg* concentration in drinking water giving the following values: 269 ppm, 215 ppm, 248 ppm, 242 ppm, 238 ppm, 259 ppm, 265 ppm What is the experimental (or calculated) Q value for this data set? Determine if any values should be rejected from this data set at the 90% confidence level.

Subject: chemistry

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Enter a balanced equation for the reaction between aqueous lead(II) nitrite and aqueous sodium bromide to form solid lead (II) bromide and aqueous sodium nitrite. Express your answer as a chemical equation. Identify all of the phases in your answer. | 圈 femplates Symbols undo redo reset keyboard shortcuts help ΑΣΦ . DA chemical reaction does not occur for this question.