How many calories are there in 456 J? Express your answer to three significant figures.

Question

Question

How many calories are there in 456 J? Express your answer to three significant figures.

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

456J hee knaw, 1 Cal =4.184 J Conversian ok J to Calery Eneryy =456Jx 1 Cal 4.1943 Enengs 108.98 Cal Energy 109 Cal Thank ya

Add a comment

Answer 2

Similar Homework Help Questions

Perform each of the following conversions. 303 Cal to kilowatt-hours. (Express your answer using three significant...

Perform each of the following conversions. 303 Cal to kilowatt-hours. (Express your answer using three significant figures) 21 J to calories (cal). (Express your answer using two significant figures)
Find A . Express your answer to three significant figures with appropriate units. Find B. Express...

Find A . Express your answer to three significant figures with appropriate units. Find B. Express your answer to three significant figures with appropriate units. Find C. Express your answer to three significant figures with appropriate units. Find ?1. Express your answer to three significant figures with appropriate units. Find D. Express your answer to three significant figures with appropriate units. Find E. Express your answer to three significant figures with appropriate units. Find F. Express your answer to three...
Specify the numerical value of I, Express your answer to three significant figures and include the...

Specify the numerical value of I, Express your answer to three significant figures and include the appropriate units. ReviewI Constants The current and voltage at the terminals of the capacitor in the circuit in (Figure 1) are i(t) 2.5e2500f mA, vt)- (40 22e 25t) V, t20 I6.36 mA where t is in seconds. SubmitP XIncorrect; Try Again Part B Specify the numerical value of Vo Express your answer to three significant figures and include the appropriate units. 18.0 V Figure...

Express your answer to three significant figures and include the appropriate units, The formula of Benadryl...

Express your answer to three significant figures and include the appropriate units, The formula of Benadryl is C17H21NO. How many moles of C are present in 0.752 moles of Benadryl? How many moles of H are present in 2.20 moles of Benadryl? How many moles of N are present in 1.64 moles of Benadryl?
Part B How many moles of C and H? Express your answers using three significant figures...

Part B How many moles of C and H? Express your answers using three significant figures separated by a comma. 10 AP = 0 D? ne, ny = mol Submit Request Answer A compound is isolated from the rind of lemons that is found to be 88.14% carbon and 11.86% hydrogen by mass.
Express your answer to three significant figures and include the appropriate units. Using table below, calculate...

Express your answer to three significant figures and include the appropriate units. Using table below, calculate the heat change needed for each of the following at the melting/Freezing point Table Heals of Fusion for Selected Substances Substance Heat of fusion (J/) Propane САН. 3157 cal Benzene CH Submit Previous Answers Request Answer Acetic acid CHO, 192 Ethanol CHO 100 X Incorrect; Try Again; 5 attempts remaining Ammonia NH 351 Part 8 Water HO 334 joules to freeze 263 g of...

How many moles of ibuprofen contain 1.51×10^23 atoms of carbon? Express your answer using three significant...

How many moles of ibuprofen contain 1.51×10^23 atoms of carbon? Express your answer using three significant figures.
i need help with all 4 questions Express your answer to three significant figures and include...

i need help with all 4 questions Express your answer to three significant figures and include the appropriate units. Using table below, calculate the heat change needed for each of the following at the melting/freezing point Table Heats of Fusion for Selected Substances Substance Heat of fusion (J/) Propane САН. 3157 cal Benzene CH 128 Submit Previous Answers Request Answer Acetic acid CH 0 Ethanol C,H,O 100 X Incorrect; Try Again; 5 attempts remaining Ammonia NH 351 Part Water HO...
An electron travels at 0.494c. 1. Calculate its Einsteinian momentum. (Express your answer to three significant...

An electron travels at 0.494c. 1. Calculate its Einsteinian momentum. (Express your answer to three significant figures.) ______________ x 10^-22 kg m/s 2. Calculate its Einsteinian kinetic energy. (Express your answer to three significant figures.) _____________ x 10^-15 J 3. Calculate its rest energy. (Express your answer to three significant figures.) _____________ x 10^-14 J 4. Calculate the total energy of the electron. (Express your answer to three significant figures.) ____________ x 10^-14 J

How Many NaCl Formula Units Does It Contain? express your answer using two significant figures

How many NaCl formula units does it contain? Express your answer using two significant figures. A salt crystal has a mass of 0.16 mg .

How many calories are there in 456 J? Express your answer to three significant figures.

Homework Answers

Add Answer to:
How many calories are there in 456 J? Express your answer to three significant figures.

Post as a guest

Earn Coins

Perform each of the following conversions. 303 Cal to kilowatt-hours. (Express your answer using three significant...

Find A . Express your answer to three significant figures with appropriate units. Find B. Express...

Specify the numerical value of I, Express your answer to three significant figures and include the...

Express your answer to three significant figures and include the appropriate units, The formula of Benadryl...

Part B How many moles of C and H? Express your answers using three significant figures...

Express your answer to three significant figures and include the appropriate units. Using table below, calculate...

How many moles of ibuprofen contain 1.51×10^23 atoms of carbon? Express your answer using three significant...

i need help with all 4 questions Express your answer to three significant figures and include...

An electron travels at 0.494c. 1. Calculate its Einsteinian momentum. (Express your answer to three significant...

How Many NaCl Formula Units Does It Contain? express your answer using two significant figures

How many calories are there in 456 J? Express your answer to three significant figures.

Homework Answers

Add Answer to: How many calories are there in 456 J? Express your answer to three significant figures.

Post as a guest

Earn Coins

Add Answer to:
How many calories are there in 456 J? Express your answer to three significant figures.