1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tresset_1 [31]
3 years ago
15

A taco from a fast food restaurant contains 7.0 g of fat, 25. g of carbohydrate, and 11 g of protein. How many kJ of energy does

the cheeseburger contain? (The caloric values for foods are 38 kJ/g for fat, for carbohydrate, and 17 kJ/g for protein.)
Chemistry
1 answer:
Gennadij [26K]3 years ago
5 0

Answer: 878 kJ of energy is there in cheeseburger

Explanation:

Given : calorific value of fat = 38kJ/g

calorific value of carbohydrate = 17 kJ/g

calorific value of protein = 17kJ/g

1 g of fat contains energy = 38 kJ

7.0 g of fat contains energy = \frac{38}{1}\times 7.0=266 kJ

1 g of carbohydrate contains energy = 17 kJ

25 g of fat contains energy = \frac{17}{1}\times 25=425kJ

1 g of protein contains energy = 17 kJ

11 g of protein contains energy = \frac{17}{1}\times 11=187kJ

Total energy = (266+425+187) kJ = 878 kJ

You might be interested in
Given the reaction: solid sodium reacts with chlorine gas to form solid sodium chloride How many moles of the product result fro
lyudmila [28]

Answer:

number of moles of NaCl produce = 12 mol

Explanation:

Firstly, we need to write the chemical equation of the reaction and balance it .

Na(s) + Cl2(g) → NaCl(s)

The balanced equation is as follows:

2Na(s) + Cl2(g) → 2NaCl(s)

1 mole(71 g) of chlorine produces 2 moles(117  g) of sodium chloride

6 mole of chlorine gas will produce ? mole of sodium chloride

cross multiply

number of moles of NaCl produce = 6 × 2

number of moles of NaCl produce = 12 moles

number of moles of NaCl produce = 12 mol

3 0
4 years ago
How many atoms are in a sample of 1.83 moles of potassium (K) atoms? Please explain the conversions to me. Thank you!
IRINA_888 [86]
1 mole K ------------- 6.02x10²³ atoms
1.83 moles K ------ ?? atoms

1.83 x (6.02x10²³) / 1 =

1.101x10²⁴ atoms of K

hope this helps!
6 0
3 years ago
Which historical era was marked the beginnings of European explorations, conquests of the Americas, trans-Atlantic slave trade a
Tomtit [17]

Answer : Option C) Early modern era


Explanation : The historical era which was marked by the beginnings of European explorations, conquests of the Americas, trans-Atlantic slave trade and the rise of a globally intertwined economy was Early modern era. It was later followed by the medieval period.

8 0
3 years ago
When someone standing at one end of a large room opens a bottle of vinegar, it may take several minutes for a person at the othe
Svetradugi [14.3K]

Out of the following given choice:

A.  The increase in the airspace occupied by vinegar molecules

B. The chemical reaction with nerves, which is slower than other sensory processes

C. Attractive forces between the air and vinegar molecules

D. Random collisions between the air and vinegar molecules.

<span>The answer is D. While the particles may be moving at high velocities even at room temperatures, the delay is due to the numerous collisions between the vinegar molecules and the air molecules.This changes the vinegar’s molecules directions from straight lines to random unpredictable paths</span>




3 0
3 years ago
In which group on the periodic table does the atom pictures belong?
Triss [41]

Answer: Group 14

Explanation:

It's a carbon atom with 4 valance electrons.

4 0
3 years ago
Read 2 more answers
Other questions:
  • the titration of a 20.0 mL sample of an H2SO4 solution of unknown concentration requires 22.87mL of a 0.200M NaOH solution to re
    11·1 answer
  • Type the correct answer in the box.
    5·1 answer
  • What is the reducing agent in the reaction below? <br><br> CrO3 + 2Al Cr + Al2O3
    10·2 answers
  • ASAPPP. Describe how you could determine the specific heat of a sample of a solid substance. You may
    12·1 answer
  • When converting from grams to the must be used as a conversion factor
    8·1 answer
  • Pls pls help me me pls
    9·1 answer
  • Make the following conversion.<br> 954 g= _ kg<br> 0954000<br> 95400<br> 0.954<br> 0.0954
    7·1 answer
  • 15 The picture shows Earth’s rotation. Which pattern listed below is caused by Earth’s rotation? A Water cycle processes B Lengt
    9·1 answer
  • ☆Only need information for problem 3 but you need to know the information from problem 2 to get answer 3☆
    11·1 answer
  • Which statement best describes SARS? SARS was an epidemic, but not a pandemic. SARS was a pandemic, but not an epidemic. SARS wa
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!