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
vlabodo [156]
3 years ago
7

Why do foods and fuels have chemical potential energy?

Chemistry
2 answers:
Paul [167]3 years ago
7 0
Because food is a fuel for your body and it goes into our body and fuels us in order to make kinetic energy :)
Ainat [17]3 years ago
6 0
Fuels are burned to produce energy, and your body breaks down the food to produce nutrients for your body.
You might be interested in
⦁ Find the concentration of H+, OH-, PH and POH of 0.03 M of magnesium hydroxide which ionizes to the extent of only 1 /3 in aqu
lions [1.4K]

Answer:

pH=12.3\\\\pOH=1.7\\

[H^+]=5x10^{-13}M

[OH^-]=0.02M

Explanation:

Hello there!

In this case, according to the given ionization of magnesium hydroxide, it is possible for us to set up the following reaction:

Mg(OH)_2(s)\rightleftharpoons Mg^{2+}(aq)+2OH^-(aq)

Thus, since the ionization occurs at an extent of 1/3, we can set  up the following relationship:

\frac{1}{3} =\frac{x}{[Mg(OH)_2]}

Thus, x for this problem is:

x=\frac{[Mg(OH)_2]}{3}=\frac{0.03M}{3}\\\\x=  0.01M

Now, according to an ICE table, we have that:

[OH^-]=2x=2*0.01M=0.02M

Therefore, we can calculate the H^+, pH and pOH now:

[H^+]=\frac{1x10^{-14}}{0.02}=5x10^{-13}M

pH=-log(5x10^{-13})=12.3\\\\pOH=14-pH=14-12.3=1.7

Best regards!

4 0
3 years ago
Which of the following gases would diffuse the fastest? <br> CH 4<br> CCl 4 <br> O 2<br> H 2
Sholpan [36]
H2 <span>because the smaller the gas molecule, the faster the diffusion. (the lightest molecule will diffuse the quickest)</span>
8 0
4 years ago
The isomerization reaction, ch3nc → ch3cn, is first order and the rate constant is equal to 0.46 s-1 at 600 k. what is the conce
Harlamova29_29 [7]
According to this formula :
㏑[A] /[Ao] = - Kt 
when we have Ao = 0.3 m 
and K =0.46 s^-1
t = 20min = 0.2 x 60 =12 s
So by substitution :
㏑[A] / 0.3 = - 0.46 * 12
㏑[A] / 0.3 = - 5.52
by taking e^x for both side of the equation we can get [A]
∴[A] = 0.0012 mol dm^-3
6 0
4 years ago
How many grams are in 1.3 moles of Cr?
Verizon [17]

Answer:

40.38 grams

Explanation:

6 0
3 years ago
Read 2 more answers
C: Ms. Bakare has two bottles of sulfuric acid, X and Y. There is one litre of acid in each bottle.
umka2103 [35]

Acid of x bottle is highly reactive because solute is more and acid of y bottle is less reactive because solvent is more.

8 0
3 years ago
Other questions:
  • Which is the isoelectronic of Na​
    12·1 answer
  • Which of the following is the energy possess by an object place on top of table​
    11·1 answer
  • What is the Titration Method??? ​
    12·1 answer
  • According to the label on a bottle of concentrated hydrochloric acid, the contents are 36% by mass and have a density of 1.138g/
    8·1 answer
  • Write a balanced half-reaction for the reduction of permanganate ion (Mno) to manganese ion Mn?) in acidic aqueous solution. Be
    12·1 answer
  • hydrogen sulphide and water molecules have the same shape. however the bond angle in water is greater than the bond angle in hyd
    6·1 answer
  • Which is a nonpoint source of pollution?
    8·1 answer
  • QUESTION 10
    12·1 answer
  • How much thermal energy must be added to a 87.5 g sample of ice at -25oC completely melt the entire sample? As part of your work
    9·1 answer
  • Please help!-- 20 pts!
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!