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
yanalaym [24]
3 years ago
6

How does the reaction of hydrogen and oxygen to produce energy in a fuel cell differ from their interaction during the direct co

mbustion of hydrogen and oxygen?
Chemistry
1 answer:
Nikolay [14]3 years ago
7 0
Need more information
You might be interested in
The weight of an object is constant. true false
Dahasolnce [82]
False weight is dependent on the force of gravity 
 
8 0
3 years ago
Read 2 more answers
Need help read the comment below.
BartSMP [9]

Answer:

Protective fruit

Explanation:

Angiosperm seeds grow in the middle of flower's ovaries and are covered by a defensive fruit.

8 0
3 years ago
How does the distance between the planet Earth and the Sun compare with the distances between the planet Earth and other stars?
Paha777 [63]
I think C, but I could be wrong
7 0
3 years ago
Read 2 more answers
With 21 g of Zinc, and 7 g of CuCl2, how much ZnCl2 is made in grams?
mina [271]

Answer: 7.07 grams

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}\times{\text{Molar Mass}}    

\text{Moles of} zinc=\frac{21g}{65g/mol}=0.32moles

\text{Moles of} CuCl_2=\frac{7g}{134g/mol}=0.052moles

Zn+CuCl_2\rightarrow Cu+ZnCl_2

According to stoichiometry :

1 mole of CuCl_2 require 1 mole of Zn

Thus 0.052 moles of CuCl_2 will require=\frac{1}{1}\times 0.052=0.052moles  of Zn

Thus CuCl_2 is the limiting reagent as it limits the formation of product and Zn is the excess reagent.

As 1 mole of CuCl_2 give = 1 mole of ZnCl_2

Thus 0.052 moles of CuCl_2 give =\frac{1}{1}\times 0.052=0.052moles  of ZnCl_2

Mass of ZnCl_2=moles\times {\text {Molar mass}}=0.052moles\times 136g/mol=7.07g

Thus 7.07 g of ZnCl_2 will be produced from the given masses of both reactants.

8 0
3 years ago
Explain, in terms of electrons, why the radius of a calcium ion is smaller than the radius of a calcium atom.
Lilit [14]
Because the calcium ion donates two electrons to achieve the stable state. So the layer of electrons decrease form 4 layers(2,8,8,2) to 3 layers(2,8,8). Thus, the radius of a calcium ion is smaller than a calcium atom.
4 0
3 years ago
Other questions:
  • Consider the reaction. Upper H subscript 2 upper o (g) plus upper C l subscript 2 upper O (g) double-headed arrow 2 upper H uppe
    10·2 answers
  • Predict the formula for a compound made from X^2+ and Y^3-
    9·1 answer
  • ilver bromide is used to coat ordinary black-and-white photographic film, while high-speed film uses silver iodide. (a) When 56.
    6·1 answer
  • How seconds to 0.8 yards
    15·1 answer
  • Identify the trend in bond length of the hydrogen-halide molecule and explain why it exists.​
    13·1 answer
  • Ending Transsmission definition<br> pls put the definition
    10·2 answers
  • Which of the following statements apply to an ionic bond?
    5·1 answer
  • Care to help me guys please​
    5·1 answer
  • The time it takes for a celestial body to make one complete turn on its axis is a(n)
    6·1 answer
  • How many grams of Cl2 must react to produce 0.0923 mol of AlCl3? Show work.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!