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1. A friend claims that a metric ton is more than twice the mass of an English ton because a kilogram is more than twice the mass of a pound. Make a quantitative argument in support of or against your friend's claim. (1 page) 2. Upgraded U.S. fuel economy standards formalized in 2012 call for a 54.5 mile-per-galloon average for new cars and light trucks in 2025. A politician opposing this increase claims it will save "only a drop in the bucket" compared with the 2014 fleet average of about 23 mpg. Formulate a counterargument showing that the increase - once the entire fleet reaches 54.5 mpg - consumption rate from its 2014 value of about 375 million gallons per day. State any additional assumptions you make.

= MATH AND PHYSICS Power and quotient rules... Simplify. (3₁²) ² 3 (4₂²)³ Write your answer using only positive exponents. 0 S 0/3

ITEMS USED FOR EXPERIMENT: •Ring stand •Hot plate •125 mL Erlenmeyer flask•400 mL beaker•10 mL graduated cylinder •Aluminum foil•Rubberband•Paper Clip•Thermometer•Vial containing unknown liquid You know have the following data: Mass of flask + foil + rubberband: 78.637 gMass of flask + foil and rubberband+ unknown condensed liquid: 78.847 gTemperature of water bath: 100C = 373 KPressure of gas in our system: 29.02 inHg = 0.9699 atmVolume of gas in our system: 141 mL = 0.141 L 1. During the experiment, you collect the following data: Mass of flask: 80.001 g Mass of flask + unknown condensed liquid: 80.452 g Temperature of water bath: 100 °C Pressure of gas in our system: 0.998 atm Volume of gas in our system: 265 mL Which of the following number(s) need a conversion before they can be used? (Check all that apply) [ ] Group of answer choices [ ] Volume of gas in our system [ ] Mass of flask [ ] Temperature of water bath [ ] Pressure of gas in our system [ ] Mass of flask +…

Below is the formula for a pediatric chewable gummy gel base. Gelatin 43.4 g 155 mL Glycerin Purified water. . . . . . 21.6 mL If the specific gravity of glycerin is 1.25, the total weight of the formula is g.

101 Chem101 b Search results for 'Using the infor x B Brainly.com - For students. By stu X G Using the information in the tab + -> A app.101edu.co I Apps y! email b bartleby B Brainly.com - For st. = Google Docs M gmail O eagle adv H school email S canvas m Monthly | My Classes 101 Chem101 general E Reading list Question 19 of 44 Submit Using the information in the table, the rate law for the reaction A(g) + 3 B(g) → C(g) + 2 D(g) is Rate [A], (M) [B], (M) (M/s) A) Rate = k[A][B]³ 1.25 0.100 0.850 B) Rate = k[B] C) Rate = k[A][B] 1.25 0.300 2.55 D) Rate = k[A][B]² 3.75 0.200 5.10 2:47 PM P Type here to search 67°F Clear 7/19/2021 近

2. Calculate the mass of each of the following: a. 20.0 mL of nitrogen gas b. 7.0 L of hydrogen gas 3. Calculate the number of atoms or molecules of each of the following: a. 1000.0 mL of oxygen gas b. 200.0 mL of sulfur dioxide gas

101 Chem101 You are given a 1.25 gram mixtı x b My Questions | bartleby Get Homework Help With Cheg × + app.101edu.co M Apps G M Gmail YouTube Maps a AMAZON Translate Gflights USCIS ъ ВАТERBLY C CHEGG > KATAPULK CUBA SUPERMARKET23 Essay Writing Ser... G calculator - Googl... Reading List Question 12 of 20 Submit You are given a 1.25 gram mixture of calcium nitrate and calcium chloride. You dissolve this mixture in 200.0 mL of water and add an excess of 0.300 M silver nitrate. You collect and dry the white precipitate which forms and find it has a mass of 0.535 grams. Calculate the percent calcium chloride by mass in the original mixture. | % 1 2 4 C 7 8 9 +/- х 100 + LO

Perform the calculation below (Equation 1) to the correct number of significant figures? (Show your work.) (??.????−?.???) divided by ?.? =? Equation 1

49 S Schoology S Grades | Schoology 9 Schoology 9 Grades | Schoology i bcps.schoology.com/common-assessment-delivery/start/4509684158?action=Donresume&submissionld%=378387385 出 Apps Downloading SIMS. M Gmail YouTube Maps D Watch Disney Chan.. 1/4 Try It: Chemical Properties and Changes An iron nail rusting is an example of a change.

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Pavilion HP TrueVision HD 4 Texas Workfor Mc Homework X W. College Physic hnical App AN Careers J/eagleonline.hccs.edu/courses/188795/assignments/3601808 Avaliabie diler reD 4 dl 10.17 dim Constants | Periodic Table Compiete tne fourtn row. Express your answer using two significant figures. Complete the following table by calculating the missing entries and indicating whether the solution is acidic or basic. [H+] [OH]] pH pOH Acidic or basic? ΑΣφ 7.4x10-3 [H*] 3.3x10-10 M Submit Request Answer 8.25 5.73 DOL ADVANCEDA fo f2. ho 4+ Is 10 insert

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Twelve (12) samples were weighed on a balance, their combined mass is 13.62 g.  With the appropriate number of significant digits, what is the average mass of each sample?      1.1 g      1.14 g      1.135 g      1.1350 g      it is impossible to determine with the given information

...Lc ו Colors | Georgia Gw... Beautiful Free Imag... ☺ Make Images, Vide... O MEASUREMENT AND MATTER 1/3 Setting up the math for a one-step quantitative problem Lindsey Suppose you need 6.5 m of Grade 70 tow chain, which has a diameter of 3/8" and weighs 2.16 kg/m, to tow a car. How would you calculate the mass of this much chain? Set the math up. But don't do any of it. Just leave your answer as a math expression. Also, be sure your answer includes all the correct unit symbols. mass of chain = 回山国

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Celsius to Fahrenheit is F = 9/5C + 32. Round to the nearest tenth 67 degree F is equivalent to what C?

e east.cengagenow.com Chemistry I C OWLV2 I Online teaching and learning resource from C. b Answered: The number 9.469709 rounded to 2. | bart. G 54.0 (References] Use the References to access important values if needed for this question. It is often necessary to do calculations using scientific notation when working chemistry problems. For practice, perform each of the following calculations. (9.40×10“)(4.27×10$) = 5.00x104 9.45x104 (9.40x10 )(6.46×10) (1.00x108)(5.00x1o4) Submit Answer Try Another Version 5 item attempts remaining Cengage Learning Cengage Technical Support

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1. 1. What is the difference between dilution and concentration? Bi U Font Family - AA A OE- 8 00:59:53 PREVIOUS 1 of 9 NEXT 23 2 & 4. W e 国

I don’t understand these two questions.(66 and 67)

Instructions for this problem say, "Solve each problem and report your answer to correct significant figure and units. Remember that units multiply, divide, add, subtract, and simplify just like variables." (3.1 x 10^4 nm^2)^1/2   How do I solve with a half exponent? Image of my attempt attached.

6. 7.90 kilograms (Kg) to pounds (Ibs) %3D %3D 7 112 liters (L) to cuns (c

Question 5 of 21 Attempt 4 Chemistry: Fundamentals and Principles Davidson presented by Macmillan Leaming The mass of gemstones and pearls is usually expressed in units called carats. One carat is equal to exactly 200 mg. What is the mass in grams of a 2.10-carat diamond ? 2.10-carat diamond = } TOOLS x10 Show All 2021 02 04 10 1..jpg E Anticipation Gui. doc chem20lec8hand.pdf Module 3 MacBook Air F12 FIL F10 F7 吕口 F3 000 DO0 CA F2 * & # %2$ % 8 7 4 5 P Y E R K F G H

[References] It is sometimes necessary to take powers or roots to solve chemistry problems. Take powers and roots as needed on your calculator to complete the following: a = 3.964 a = b = 772 % = c= 2.001.28 C = d1.02 = 2.19 d = Submit Answer Retry Entire Group 4 more group attempts remaining Cengage Learning | Cengage Technical Support

9. 7 9. 10 11 12 13 14 1 A geologist measures the height of a mountain. The height is 3.6089 km. What is the height in meters? Write your answer as a decimal. |x10 Submit Assignme Continue O 2021 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Accessib MacBook Air 00 4- 3. 2.

Done < AA www-awu.aleks.com MEASUREMENT Multiplication and division of... Decide whether each proposed multiplication or division of measurements is possible. If it is possible, v last column of the table. proposed multiplication or division Is this possible? result x10 (2.0 mg) - (0.020 g) = ? yes ola no Ar yes (4.0 g) · (6.0 mL) = ? no yes (2.4 em) · (0.30 m) = ? %3D no Explanation Check © 2021 McGraw-Hill Education. All Rights Reserved.

B) Choose the correct answers for the following statements: 1-..............have the maximum hot water storage factor. a- Hotels b-factories c-government offices d-none of these 2- CO2-gas is usually used to extinguish... a- fabric b-flammable c-electrical equipments d-none of these 3-In general the maximum area served by one firefighting sprinkler is.... a- 90 ft² b- 120 ft² c- 200 ft² d-none of these 4-The turbidity is considered as a ...........water quality parameter. c- biological d-none of these a- chemical b- physical 5-The water closet with type of (F.V) is usually used water..............type a-higher than(F.T) b-lower than (F.T) c-equal to (F.T) d-none of these

Q2 for he following table: Соmponent Percent by mass Typical Densio(Kg/m³) Food wastes 14 Paper Cardboard Plastics 290 85 50 40 65 Yard wastes 105 240 Wood Tin cans 90 Total Answer the following: 1-assume that you choose a basis of 100 kg as a waste sample, based on this assumption will the density differs from that if you choose a basis of 1000 kg? Prove ( 2-give another way to estimate the density other than given in the lectures.

QI/A- Fill in the blanks 1- 2- is the collection of all of the components in the sample containing an analyte. indicates the amount of cach substance in a sample. ......-... is the process of determining the proportionality between analyte concentration 3- ...... and a measurcd quantity. 4- is the ratio of its mass to the mass of an cqual volume of water at 4C. ....... 5- A compound produced by an internal acid /base reaction consisting of positive and negative charge is.... B-Write the appropriate equation for each of the following 1- The Henderson-I lasselbalch cquation for acid and its salt. 2- (HO'] for acidic salt. 3- The relationship between molarity and part per millian. 4- ion-product constant for water. 5- weight/volume percent (w/v), and its units. ......... O 100 1

Complete the table