URGENT 4 darts strike near the center of theboard. Whoever threw the darts is: *PreciseNeither accurate nor preciseAccurateAccurate and precise 18:45ullA docs.google.comWhich of the following is an experimentalerror when working with hydratedcompounds on the bench? *The crucible was not cleaned and driedbefore weighing its massThe anhydrous salt was left to coolovernight before weighing its massThe crucible and anhydrous salt werecarried in wet hands not using tongsall of the above answersIf a student is looking for the molar massof a volatile liquid and took 10 ml of itinstead of 3ml, the molar mass willdecrease. *TrueFalseWho is more precise when measuringthe same 17.0 cm book? *Susan: 17.0 cm, 16.0 cm, 18.0 cm, 15.0cmAmy: 15.1 cm, 15.0 cm, 15.2 cm, 15.3cmLina: 17.0 cm, 16.8 cm, 18.0 cm, 15.0cmDima: 17.0 cm, 16.9 cm, 18.0 cm, 16.0cm

1. Precision refers to how close your measurements are to one another. Accuracy refers to how close…

Answered: 4 darts strike near the center of the…

4 darts strike near the center of the board. Whoever threw the darts is: * Precise Neither accurate nor precise Accurate Accurate and precise O O O O

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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[References] A serving size of nine cookies contains 7 g of fat, 24 g of carbohydrates, and 9 g of protein. If walking 1 mile consumes 170 kJ of energy, how many miles must you walk to burn off enough calories to eat nine cookies? Assume the energy content of fats, carbohydrates, and proteins are 8 kcal/g, 4 kcal/g, and 4 kcal/g, respectively. 1 cal = 4.184 J. miles Submit Answer Try Another Version 3 item attempts remaining
2Cr(s) + 3Cu2+(aq) ⟶ 2Cr3+(aq) + 3Cu(s) Calculate the Ecell
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Oceanic uptake of carbon dioxide is thus described:CO2 (g) + H2O ⇔ H2CO3, K = [H2CO3]/PCO2 = 3 x 10-2 M atm-1 H2CO3 ⇔ HCO3- + H+, K = [HCO3-][H+]/[H2CO3] = 9 x 10-7 moles/LHCO3- ⇔ CO32 - + H+, K = [CO32 -][H+]/[HCO3-] = 7 x 10-10 moles/LCharge balance equation:[H+] = [OH-] + [HCO3-] + 2[CO32 ] If the CO2 concentration in the atmosphere is 300 ppm, what is the pH of the ocean?
→ C app.101edu.co STARTING AMOUNT esc 1 X 2 F2 CO #m 3 1 The average adult human burns 2.00 × 10³ kcal per day in energy. What is this rate in kJ per hour ? J ADD FACTOR * ( ) X 4184 F4 $ 4 cal 0 349 2.00 × 10³ F5 % 5 kJ Question 26 of 35 O 1000 2.01 x 10⁰ min M 6 31 = 0.001 F7 ANSWER 24 kcal/day O & 7 1.15 x 105 20.0 C F8 S 8 RESET 2 4.184 F9 kcal X 9 F10 60 hr F F11 8 Jan 21 F1Z2 3:17 6 delete Submit + backspac
The Nutrition Facts label for one slice of wheat bread gives Nutrition Facts the percent daily value of various nutrients based on a 2,000-kcal diet. Based on the percent daily values for the nutrients, calculate how many grams of each nutrient are Serving Size: 1 slice (25g) Amount Per Serving Calories 76 Calories from Fat 9 suggested daily for a 2,000-kcal diet. % Daily Value Total Fat 1.02 g 296 Saturated Fat 0.23 g 196 Trans Fat Cholesterol 0 mg Dietary fiber: Sodium 145.75 mg 696 Potassium 81.5 mg 296 Total Carbohydrate 12.79 g 496 Dietary Fiber 2.3 g g96 Sugars 1.44 g Total fat: Sugar Alcohols Protein 4.07 g Vitamin A 1 IU 0% Vitamin C 0 mg 0% Calcium 32.5 mg 3% Saturated fat: Iron 0.74 mg 4% Sodium: obout us careers privecy policy terma of uae contact us help Lr O 79°F
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_engine.html?ClassID=D1746475745#3 Drie. 0.700 g of an impure FeCl3 sample are dissolved in water to create 50.0 mL of solution. It took 1.54 x 10-3 mol H2C204 to reach the equivalence point. 2FE3+ (aq) + H2C204(aq) CO2(g) + 2H*(aq) + 2FE2+(aq) -> How many moles of FeCl3 react? 1? [? ]x 10 mol FeCl3 Coefficient (green) Exponent (yellow) Enter
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