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
boyakko [2]
3 years ago
15

Please help 100 points!

Chemistry
2 answers:
elena-s [515]3 years ago
7 0

Explanation:

The balance chemical equation is

2H2+O2—>2H2O

The limiting reactant is found by dividing the moles of each reactant by its coefficient

For H2=10.39/2=5.195

For O2=16.17/1= 16.17

Since H2 has the smaller value it’s the limiting reactant

The mass of the maximum amount of H2O is found by using the formula

moles= mass/molar mass

solving for mass gives

mass= moles*molar mass

(molar mass of H2O= 18g/mol)

mass= 5.195*18=93.51grams of H2O

zzz [600]3 years ago
3 0

Balanced chemical equation: 2H2 + O2 → 2H2O

The limiting reagent will be H2

All 10.39 mol of H2 will be used up produce 10.39 mol of H20

The excess reagent will be O2 and there will be 5.78 mols left over

You might be interested in
What is solar radiation?
mafiozo [28]

Explanation:

Solar energy is the radiant energy emmitted from the Sun. It is the electromagnetic energy

8 0
3 years ago
Which coefficient is needed in front of NaNO3 to balance the equation Na2S + Zn(NO3)2 – ZnS + _NaNO3?
Igoryamba

Answer:

The Answer is : A

Explanation:

Im taking the exam right now lol

6 0
3 years ago
The speed of light in a vacuum is 2.998 x 108 m/s. How long does it take for light to circumnavigate the Earth, which has a circ
Luba_88 [7]

Answer:

0.13 s

Explanation:

We'll begin by converting 24900 mile to metres (m). This can be obtained as follow:

1 mile = 1609.344 m

Therefore,

24900 mile = 24900 mile × 1609.344 m / 1 mile

24900 mile = 4.01×10⁷ m

Finally, we shall determine the time taken for light to circumnavigate the Earth, this can be obtained as follow:

Distance = 4.01×10⁷ m

Speed = 2.998×10⁸ m/s

Time =?

Speed = distance / time

2.998×10⁸ = 4.01×10⁷ / time

Cross multiply

2.998×10⁸ × time = 4.01×10⁷

Divide both side by 2.998×10⁸

Time = 4.01×10⁷ / 2.998×10⁸

Time = 0.13 s

Thus, it will take 0.13 s for light to circumnavigate the Earth.

5 0
3 years ago
What mass of hydrogen sulfide, H2S1, will completely react with 2.00 moles of silver nitrate, AgNO3?
vampirchik [111]

Answer:

34g

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

H2S + 2AgNO3 —> 2HNO3 + Ag2S

Next, we shall determine the number of mole of H2S required to react with 2 moles of AgNO3.

This is illustrated below:

From the balanced equation above,

We can see that 1 mole of H2S is required to react completely with 2 moles of AgNO3.

Finally, we shall convert 1 mole of H2S to grams. This is shown below:

Number of mole H2S = 1 mole

Molar mass of H2S = (2x1) + 32 = 34g/mol

Mass = number of mole x molar Mass

Mass of H2S = 1 x 34

Mass of H2S = 34g

Therefore, 34g of H2S is needed to react with 2 moles of AgNO3.

6 0
3 years ago
Identify the correct ranking of bonds or forces in order from strongest to weakest is:
Artemon [7]

The answer is (in order from strongest to weakest);

<span>covalent  </span>

<span>ionic  </span>

ion-dipole

H-bonding

dipole-dipole

<span>van der Waals</span>

A covalent<span> bond is hardest to break because it involves sharing of electrons by atoms while Van der Waals is weakest because they involve electrostatic attraction due to differentially induced dipoles between atoms and its strength is dependent on their distance apart. </span>






7 0
3 years ago
Other questions:
  • How could wind reshape a rock ?
    14·1 answer
  • Particles can enter the air by
    9·1 answer
  • Write a balanced chemical equation for each of the following.
    12·2 answers
  • At the _________________ the particles in an object have no kinetic energy
    11·1 answer
  • A sample of chlorine containing isotopes of mass numbers 35 and 37 was analysed in a mass-spectrometer. How many peaks correspon
    9·1 answer
  • Regions in DNA that encodes for
    12·1 answer
  • When the temperature in a room increases from 25°C to 33°C, changes from a solid to a liquid.
    14·1 answer
  • What mass of S8 will completely react with 167.6 grams of Fe?
    9·1 answer
  • Diazomethane, CH2N2, is used in the organic chemistry laboratory despite its danger because it produces very high yields and is
    10·1 answer
  • Please help
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!