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
dem82 [27]
3 years ago
7

Which fact about fuel cells is FALSE?

Chemistry
1 answer:
soldier1979 [14.2K]3 years ago
5 0

Answer: Option (d) is the correct answer.

Explanation:

An electrochemical cell with the help of which chemical energy of a fuel (generally hydrogen) and an oxidizing agent (generally oxygen) are converted into electrical energy by a pair of redox reactions.

A fuel cell is able to generate electricity as long as fuel and oxygen are supplied to it.

As, hydrogen and oxygen are generally used as a fuel so, this results in the formation of water as a by-product.

Thus, we can conclude that the statement fuel cell automobiles are powered by water and the only emission is hydrogen, is FALSE about fuel cells.

You might be interested in
What is the volume occupied by 6.0 moles of carbon dioxide gas at standard conditions of temperature and pressure
aliina [53]

Answer: 134.4 L

Explanation:

it just is

3 0
3 years ago
The image above shows a type of metamorphic rock called gneiss. Gneiss is characterized by alternating bands of light and dark m
finlep [7]

Answer: first blank is heating second blank is pressure i think but i know that its NOT freezing

Explanation:

I did it and got it right

4 0
3 years ago
How many grams of Cl are in 465g of CaCl2
Rama09 [41]
2 ways to do this
a. find %Cl in CaCl2
2 x 35.45g/mole = 70.9g Cl
70.9g Cl / 110.9g/mole CaCl2 = 63.93% Cl in CaCl2
0.6963 x 145g = 92.7g = mass Cl

b. determine moles CaCl2 present then mass Cl
145g / 110.9g/mole = 1.31moles CaCl2 present
2moles Cl / 1mole CaCl2 x 1.31moles = 2.62moles Cl
2.62moles Cl x 35.45g/mole = 92.7g Cl
6 0
3 years ago
Read 2 more answers
Consider the equation below. Upper C a upper C upper O subscript 3 (s) double-headed arrow upper C a upper O (s) plus upper C up
stiks02 [169]

Answer:K subscript e q equals StartFraction StartBracket upper C upper O subscript 2 EndBracket StartBracket upper C a upper O EndBracket over StartBracket upper C a upper C upper O subscript 3 EndBracket EndFraction

Explanation: the answer has it's root in Law of mass action which states that; the rate of a chemical reaction is directly proportional to the product of the concentrations of the reactants raised to their respective stoichiometric coefficients.

8 0
3 years ago
Read 2 more answers
Naturally occurring boron has an atomic mass of 10.810 amu consists of two isotopes. One of those isotopes is 10B with an isotop
miskamm [114]

Answer:

boron has an atomic mass of 10.810 amu consists of two isotopes.

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is the buffer component ratio, (bro-)/(hbro) of a bromate buffer that has a ph of 8.08. ka of hbro is 2.3 x 10-9?
    12·1 answer
  • A librarian is interested in the numbers of books that visitors check out from the library. She examines the checkout records of
    6·2 answers
  • When a water molecule forms a hydrogen bond with another water molecule, which atoms are involved in the interaction? *?
    15·1 answer
  • The atomic mass of an element is equal to the number of:
    14·2 answers
  • A balanced chemical equation used to prepare ammonium carbonate, (nh4)2co3 , is: 2 n h 3 ( g ) + c o 2 ( g ) + h 2 o ( l ) ⟶ ( n
    9·1 answer
  • What does the element symbol on the periodic table indicate?
    9·1 answer
  • A tall pea plant (TT) is crossbred with a short pea plant (tt). The following Punnett square shows the separated alleles for two
    6·1 answer
  • If you moved closer and closer to a star, how would its absolute magnitude change?
    10·2 answers
  • A). Polonium is a rare element with 33 radioisotopes. The most common one, 210Po, has 82 protons and 128 neutrons. When 210Po de
    14·1 answer
  • How many electrons are in a chromium(III) ion, Cr3+?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!