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
arlik [135]
3 years ago
14

How many moles of H2O form when 4.5 moles O2 reacts?

Chemistry
1 answer:
mart [117]3 years ago
4 0

Explanation:

Start with a balanced equation.

2H2 + O2 → 2H2O

Assuming that H2 is in excess, multiply the given moles H2O by the mole ratio between O2 and H2O in the balanced equation so that moles H2O cancel.

5 mol H2O × (1 mol O2/2 mol H2O) = 2.5 mol O2

Answer: 2.5 mol O2 are needed to make 5 mol H2O, assuming H2 is in excess.

You might be interested in
dentify the correct formula for the following ionic compounds. - sodium chloride - magnesium chloride - calcium oxide - lithium
andrey2020 [161]

Explanation:

The chemical formula of an ionic compound can be written by using the symbols of the respective cations and anions.

The overall charge on the molecule should be zero.

Hence, the total charge of cations=total charge of anions.

The symbols of the given molecules are shown below:

sodium chloride  ---- NaCl

magnesium chloride ---MgCl_2

calcium oxide ---- CaO

lithium phosphide----Li_3P

aluminum sulfide ----- Al_2S_3

calcium nitride---- Ca_3N_2

5 0
3 years ago
Which is caused by gravity?
MissTica
Mass wasting I think it's done
5 0
3 years ago
In what ways do scientists not study the history of Earth's climate?
BARSIC [14]
(A) Studying ice cores
3 0
3 years ago
ANSWER FAST PLZZZ!!!!!!!!!!!!!
goldfiish [28.3K]

Answer:

1 and 2

Explanation:

1 is negative

2 is negative

3 is positive

5 0
3 years ago
What are two ways in which white blood cells fight pathgons that have entered the body​
crimeas [40]

Answer:

Answer c i believe

Explanation:

3 0
3 years ago
Other questions:
  • What is the net ionic equation of the reaction of mgso4 with bacl2? express your answer as a chemical equation?
    8·1 answer
  • How many moles of stearic acid are contained in 0.25 mL of a hexane solution
    8·1 answer
  • In the lab, you took mass and volume measurements and plugged them into the density formula and calculated densities for differe
    5·1 answer
  • Describe at least two differences between ionic and covalent bonds.
    9·1 answer
  • A 36.41-g sample of calcium carbonate (CaC O 3 )
    15·1 answer
  • How does the displacement moved affect the amount of work done?
    8·1 answer
  • Which (3 of the 4) quantities must be conserved in all chemical reactions?
    9·1 answer
  • Which factors affect a river's load?
    15·2 answers
  • The picture (below) shows the formula for ___________.
    10·1 answer
  • What molecule is this?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!