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Safari File Edit View History Bookmarks Window Help Mon Sep 28 3:13 PM session.masteringchemistry.com Test Chapter 5 Hide Timer Item 18 18 of 20 v Complete I Review I Constants I Periodic Table What is -13 °F in degrees Celsius and kelvins? Part A Express your answer using two significant figures. T = 25 °C %3D Submit Previous Answers Incorrect; correct answer withheld by instructor Part B Express your answer using three significant figures. T = 248 K %3D Submit Previous Answers Correct Provide Feedback Next > 00

1 of 4 I Review | Constants | Periodic Tab Part A The goose has a mass of 24.8 lb (pounds) and is flying at 9.00 miles/h (miles per hour). What is the kinetic energy of the goose in joules? Enter your answer numerically in joules. View Available Hint(s) Π ΑΣΦ Submit Request Answer P Pearson nc. All rights reserved. | Terms of Use | Privacy Policy Permissions | Contact Us 1:05 PM 96% 2/26/202

Constants I Periodic Table Part A How much heat must be absorbed by a 13.0 g sample of water to raise its temperature from 13.0 C to 40.0°C? (For water, C, = 4.18J/g C) Express your answer to three significant figures and include the appropriate units. Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 29 attempts remaining Provide Feedback acer

:= Q5.15 Homework Unanswered Convert 5.78 x 102 kWh to kJ. Only include the numerical value in your answer. Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5E5 for 2.5 x 105) Type your numeric answer and submit Unanswered. 4 attempts left Submit

At the beginning of the video, the students put a thermometer under a light. Then checked the temperature at the end. What evidence did you observe that light carries energy?

What is the heat in kJ required to raise 1,973 g water from 27°C to 79°C? The specific heat capacity of water is 4.184 J/(g*°C). Round and report your answer to an integer without decimal place. Only enter numeric value, no unit.

For question 1,2,3,4 What will the shift be? How do you know? Options: shift left, shift right, or no shift

nHMAC%3Def41415d9158412623399163083b2ede#10001 Spr. 2021 8 Gu HI, Leira v Sign Out Item 4 I Review | Constants | Periodic Table Alexandra decides to climb Mt. Krumpett, which is 5000 m high. She determines that this will require a total of 2250 kcal of energy for the trip. For her food supply, she decides to take nutrition bars. The label states that each bar contains 50 g of carbohydrates, 10 g of fat, and 40 g of protein. Part A How many nutrition bars should Alexandra pack? Express the number of bars numerically. > View Available Hint(s) ν ΑΣφ bars Submit Previous Answers 0V 12:33

Interconverting calories and joules Complete the following table. Be sure each of your answer entries has the correct number of significant digits. energy content when eaten food cal kcal kJ ? an ear of cooked corn 8.50 x 10 a raw carrot 30.0 a small apple 523. 151 Explanation Check O 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use | Privacy 642 MacBook Air 30 888 DAI esc F1 F3 F6 F7 @ %23 2$ % 1 4. 6. 8

How much energy is required to raise the temperature of 12.6 grams of gaseous oxygen from 20.7 Celsius to 37.2 Celsius. answer:_ joules

Question 4 of 4 Submit In the US, nutritional energy is reported in Calories (Cal). One nutritional Calorie is equal to one kilocalorie (kcal). If a food package reports 250.0 Calories (Cal) per serving, how many calories (cal) are in each serving? | cal 1 2 3 4 6. C 7 8 +/- x 10 0 Tap here or pull up for additional resources LO

How did you know for q1 and q3 that the initial temperature was 0 degrees Celsius?

Part B: Heating Curve for Water Volume of water: 100.0mL B1. Data table for heating curve for water Time Temperature Time Temperature Time | Temperature ("C) (min) ("C) (min) (min) (°C) 21 95 1 23 26 12 13 96 98 98 99 99 99 99 99 3 34 42 56 14 15 5 16 17 67 73 26 18 8. 19 9. 20 100 10 93 21 100 2) 4)

M Inbox - emmareehernandez13@ x O 5.5 SC Specific Heat Skill Check f322 S Unit 3 E Watch Free Movies. O Aceable Driving | D. * Tarot Card Meaning... Pre-AP: Round your answers to the correct number of significant figures. Level: Round your answers to TWO decimal places. A piece of metal weighing 28.8 g was heated from 22.0 °C to 44.8 °C. If the amount of heat needed was 294.8|, calculate the specific heat of the metal. What is the identity of the metal? 日 Specific Heats of Selected Metals Smetal, J/g-C Metal 0.901 Smetal, J/g-°C 0.449 Metal Al Fe Cu 0.384 Ni 0.444 Si 0.711 Sn 0.226 Zn 0.389 Mn 1.02 Show Your Work

Voi Chem101 e app.101edu.co Question 5 of 20 Convert 3.20 x 10 J to kilojoules STARTING AMOUNT ADD FACTOR ANSWER RESET 3.20 x 10 0.0320 4184 32.0 1 0.001 1.34 x 10 1000 4.184 3.20 x 10 cal kcal J kJ MacBook Air esc 888 F1 F3 F4 FS F6 $ % & 2 5 6 7 8 9 Q Y T

Answer the following pre

You will find the final temperature when 5.00 grams of aluminum at 425℃ is placed in 50.0 grams of water at 19.5℃. Aluminum has a specific heat capacity of 0.900 J/g ℃. And water has a specific heat capacity of 4.184 J/g℃. Now set –q(hot) = q(cold) and solve for the final temperature (as done in class) and then give the calculator answer for the final temperature! (Give 7 digits). Select one: a. 8.755643 ℃ b. 26.35996 ℃ c. 12.39981 ℃ d. 28.64197 ℃ e. 29.70363 ℃ f. 10.58574 ℃ g. 30.47036 ℃ h. none of these i. 26.81358 ℃ j. 28.03884 ℃

I don’t need answers to trail 2, I only need answers to questions 1,2and 3. Also I have to change degrees to kelvin when solving

▾ Part A DA chemical reaction does not occur for this question When ethanol (C₂HO(aq)) is consumed, it reacts with oxygen gas (O₂) in the body to produce gaseous carbon dioxide and liquid water. Enter the balanced chemical equation for the reaction Express your answer as a chemical equation including phases. | ΑΣΦ Submit Previous Answers Request Answer x Incorrect: Try Again; 6 attempts remaining SARASER E Provide Feedback MAIKLIENT Next >