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3) Summarize the ways the desert can help preserve a body. 4) As our technology improves, scientists have better tools to work with and conduct experiments. Does this mean previous scientific work is
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Rays of light incident on a lens and parallel to the principal axis of the lens converge A. in back of the lens. B. at the focal point of the lens. C. at the center of curvature of the lens. D. in
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For the reaction 2co3+(aq)+2clâ(aq)â2co2+(aq)+cl2(g). eâ=0.483 v what is the cell potential at 25 âc if the concentrations are [co3+]= 4.40Ã10â2 m , [co2+]= 0.716 m , [clâ]= 0.735 m , and [cl2]
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Choose the correct statement Solutions have different properties than the solvent itself. This is based on what solute is used. Solutions have the same property as the solvent itself. This is based on
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A sample of chloroethane, C2H5Cl, absorbs 0.185 kJ and begins to vaporize at its normal boiling point of 12.3°C. What is the mass of the chloroethane sample? The molar heat of vaporization for chloro
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Which of the following describes the relationship between the wavelength and strength of the Sun's radiation?The shorter the radiation's wavelength the weaker the radiation's energyThe shorter the rad
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What is the difference between a pressurized water react door and boiling water reactor A. A pressurized water reactor does not use fission B. A pressurized water reactor boils the water faster C. A p
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Match each economic scenario with the correct economic term. Tiles A country can produce more units of good B without reducing the units of good A it produces. A country cannot produce more units of g
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17) Why is 18-karat gold considered a mixture rather than a pure substance? A) It has a variable composition. B) Its color is different than pure gold. C) The gold atoms are not arranged in a repeatin
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A copper ore consisting of 12.5% copper(II) sulfide, when heated and reacted with oxygen gas, produces copper(II) oxide and sulfur dioxide. If the reaction has a 90.0% yield, how many grams of copper(
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Need help with thermodynamics homework tonight
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Need help with thermodynamics homework tonight
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Need help with thermodynamics homework tonight, the faster you can help the more I will pay
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Why are the trends and exceptions to the trends in ionization energy observed? Check all that apply. Ionization energy tends to increase down a group because the electrons get farther away from the nu
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Your essays should be about 1000 words, in 12 font and double-spaced. This means you should devote a good paragraph or more to each part. Include the word count at the top of the assignment.Please mak
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Your essays should be about 1000 words, in 12 font and double-spaced. This means you should devote a good paragraph or more to each part. Include the word count at the top of the assignment.Please mak
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Under which conditions do both convex and concave mirrors form virtual images? State whether or not each can form a real image. If the mirror can form a real image, describe how this works. PLS help,
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A balloon with a volume of 2.0 L at 25°C is placed in a hot room at 35°C. The pressure on the balloon is constant at 1.0 atm. How does the volume of the balloon change after moving it to the hot ro
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Which of these statements about gravity are true? (Gravity helps us stay situated on Earth without floating away). (Gravity gives objects their mass). (Gravity holds our galaxy together). (Multiplying
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It costs ₹ 2200 to paint the inner curved surface of a vessel 10cm deep. It rhe cost of painting is at the rate of ₹20 per m2 ,find the first radius of the base second inner curved surface area of
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Carbon-14 dating assumes that the carbon dioxide on earth today has the same radioactive content as it did centuries ago. if this is true, the amount of 14c absorbed by a tree that grew several centur
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ENV 3 ESSAY # 4 Your essays should be about 1000 words, in 12 font and double-spaced. This means you should devote a good paragraph or more to each part. Include the word count at the top of the a
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Using the heat equation Q=mc∆T, what would the formula look like if we were solving for change in temperature? a mcQ=∆T b Q/mc= ∆T c Qm/c=∆T d Q m=∆Tc give me a reason why and please go into
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Task Distance (m) Time (s) Speed Hopping 0 m 0 s 0 m/s 5 m 10 m Walking Backwards 0 m 0 s 0 m/s 5 m 10 m Walking (regular pace) 0 m 0 s 0 m/s 5 m 10 m Speed Walking 0 m 0 s 0 m/s 5 m 10 m PLEA
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What is the BEST conclusion that can be drawn? I. All the energy contained within the organisms in the web comes from the sun. II. The energy from the caterpillar is transferred to the plant. III. The
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Select ALL the factors that cause water to sink in the North Atlantic. A. cooling of the water as it travels north B. increasing salinity as some water freezes C. churning of the water by schools of m
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A = proton transfer d = e1 elimination f = sn1 nucleophilic substitution b = lewis acid/base e = e2 elimination g = sn2 nucleophilic substitution c = electrophilic addition the rections above involve
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1. An acid has a pH of 4. Another acid has a pH of 5. How do the two pH values compare? * A. A pH of 4 is 10 times less acidic than a pH of 5 B. A pH of 4 is 10 times more acidic than a pH of 5 C. A
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This graph shows the energy changes during the progress of a reaction involving two molecules. Explain what is happening or what the state of the reaction is at A, B, C, and D. Is this an exothermic o
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In order for one type of atom to substitute for another in a solid solution, the substituting atom must be: (Select all that apply.) the same element identical in size similar in size from the same pe
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Find the volume of 19.5 g of CCl4 at 972 torr and 29.0oC.
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Review the six economic goals discussed in this section. Then, in a paragraph of at least five sentences, describe the goal you feel is the most important to a country and explain why you feel this wa
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Assume that 13.5 g solid aluminum (Al) react with HCl to produce solid aluminum chloride (AlCl3) salt and gaseous hydrogen (H2) at standard temperature and pressure. How many moles of Al react? mol Ho
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BRAINLIEST AND 5 POINTS! Heat from a fire warming your hands Radiation Convection Conduction Warm air rising from the pavement Radiation Convection Conduction An oven that cooks by cycle warm air thr
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Imagine you have a saturated solution of ca(oh)2, at equilibrium, that has some undissolved ca(oh)2 solid on the bottom of the test tube. if you add an additional scoop of solid ca(oh)2 to this soluti
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In many cases of fischer esterification, the carboxylic acid is the more "valuable" piece and the alcohol is used in excess (as solvent). let's say you are making the ethyl ester of an acid and use th
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A mixture of methane gas, ch4(g), and propane gas, c3h8(g), has a pressure of 0.5997 atm when placed in a sealed container. the complete combustion of the mixture to carbon dioxide gas, co2(g), and wa
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Please use the below reaction to answer this question. N2 + 3H2 -> 2NH3 How many liters of nitrogen gas will I need to produce 65.4 liters of NH3 at STP? 65.4 liters N2 32.7 liters N2 75.4 liters N2 2
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Find the average atomic mass of neon, given the atomic masses and relative abundance of its three isotopes. Ne-20: 19.992 amu; 90.48% Ne-21: 20.993 amu; 0.27% Ne-22: 21.991 amu; 9.25%A. 20.992 amuB. 1
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N the process of carbon fixation, three molecules of rubp combine with three molecules of co2 to produce three six-carbon molecules, which are then split to produce 12 molecules of 3-phosphoglycerate.
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Https://answers.search.a precipitate is expected when an aqueous solution of potassium iodide is added to an aqueous solution ofahoo.com/search?fr=uh3_answers_vert_gs&type=2button&p=a%20precipitate%20
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If neon gas travels at 400 m/s at a given temperature l, calculate the velocity of butane C4H10 at the same temperature.
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Complete combustion of 5.60 g of a hydrocarbon produced 17.9 g of CO2 and 6.41 g of H2O. What is the empirical formula for the hydrocarbon?
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Which choice lists the correct order of the coefficients of each substance in the following neutralization reaction when the equation is balanced correctly? H2SO4 + LiOH → Li2SO4 + H2O
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It's sometimes said that water is a universal solvent. Do a little research in this term why do some people call it this? What aspect of its structure makes it a good solvent? If a "universal solvent"
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All plant and animal groups existing together and the physical factor with which they interact compose
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The temperature of 2.47 mol of an ideal monatomic gas is raised 14.6 k at constant volume.what are (a) the work w done by the gas, (b) the energy transferred as heat q, (c) the change δeint in the in
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Pentane (c5h12) and hexane (c6h14) form an ideal solution. at 25c the vapor pressures of pentane and hexane are 511 and 150. torr, respectively. a solution is prepared by mixing 25 ml pentane (density
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If sufficient acid is used to react completely with 10.2 grams of mg, mg(s) + 2 hcl(aq) → mgcl2(aq) + h2(g) what volume of hydrogen at stp would be produced? 1. 18.9 liters 2. 4.72 liters 3. 10.3 li
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A saturated solution of magnesium fluoride , mgf2, was prepared by dissolving solid mgf2 in water. the concentration of mg2+ ion in the solution was found to be 1.18×10−3 m . calculate ksp for mgf2
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