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
nlexa [21]
3 years ago
9

Write balanced chemical reactions for the following a) Ammonia, NH3, reacts with nitrogen oxide, NO, to produce water and nitrog

en gas. b) Oxygen gas reacts with hydrogen sulfide, H2S, to produce water and sulfur dioxide, SO2.
Chemistry
1 answer:
Evgesh-ka [11]3 years ago
3 0

Answer:

a) 4NH₃ + 6NO ⇄ 6H₂O + 5N₂

b) 2H₂S + 3O₂ ⇄ 2H₂O + 2SO₂

Explanation:

Write the equation as given then modify accordingly.

a) NH3 + NO ⇄ H2O + N2

make sure that the amount of each element is equal in both side (reactants and products)

Hydrogen is the different one thus to make H egal we multiply by 2 in the reactant and by 3 in the product to make it 6. Thus the all reaction is multiply accordingly.

2NH3 + 3NO ⇄ 3H2O +  5/2N2

to remove the fraction, multiply both side by 2.

4NH3 + 6NO ⇄ 6H2O + 5N2

b) O2 + H2S ⇄ H2O + SO2

The Oxygen are not the same, so we make them equal to 6 in both side. in the reactant we have to multiply by 3. In the product we have to get 2 for water and 2 for SO2 to have a total of 6 O.

we modify the reaction accordingly to equal elements in both side.

2H2S + 3O2 ⇄ 2H2O + 2SO2

You might be interested in
Assuming all gas is removed from the tank when filling balloons, how many 0.75 L balloons can be filled from a tank that contain
Marrrta [24]

Answer:

278 balloons can be aired.

Explanation:

We apply the Ideal Gases Law to determine the total available volume for each baloon of 0.75L. So we need to divide the volume we obtain by the volume of each baloon.

We determine the moles of CO₂

375 g. 1 mol / 44g = 8.52 moles

V = (n . R . T) / P → (8.52 mol . 0.082 . 298K) / 1 atm = 208.3 L

That's the total volume from the tank, so we can inflate (208.3 / 0.75) = at least 278 balloons

8 0
3 years ago
Read 2 more answers
Determine the enthalpy for this reaction: Al(OH)3(s)+3HCl(g)→AlCl3(s)+3H2O(l)
ivanzaharov [21]
<span>Important information to solve the exercise :
Substance ΔHf (kJ/mol):
HCl(g)= −92.0 </span><span>kJ/mol
Al(OH)3(s)= −1277.0 </span><span><span>kJ/mol
</span> H2O(l)= −285.8 </span><span>kJ/mol
AlCl3(s) =−705.6 </span><span>kJ/mol

</span><span>Al(OH)3(s)+3HCl(g)→AlCl3(s)+3H2O(l)
    reactants                         products

products- reactants:</span><span>

(−705.6) + (3 x −285.8) - ( −1277.0 ) - (3 x −92.0 ) = - 10.0 </span>kJ per mole at 25°C
<span>
</span>






6 0
2 years ago
What is the equation for figuring out the Atomic Mass
zhenek [66]

Answer:

Atomic mass = mass of protons + mass of neutrons

Explanation:

In an element atomic mass of an atom can be calculated by adding the mass of protons and neutrons

I hope this helps! :)

8 0
3 years ago
HURRY PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!
aivan3 [116]

Answer:


When <em>a scientist on Earth drops a hammer and a feather at the same time an astronaut on the moon drops a hammer and a feather, the result</em>  expected is that <em>the hammer hits the ground before the feather on Earth, and the hammer and feather hit at the same time on the moon (option D).</em>


Explanation:


In the abscence of atmosphere (vacuum), the objects fall in free fall. This is, the only force acting on the objects is the gravitational pull, which is directed vertlcally downward.


Under such absecence of air, the equations that rules the motion are:


  • V = Vo + gt
  • d = Vo + gt² / 2
  • Vf² = Vo² + 2gd

As you see, all those equations are independent of the mass and shape of the object. This explains why <em>when an astronaut on the moon drops a hammer and a feather at the same time</em>, <em>the hammer and feather hit at the same time on the moon</em>, a space body where the gravitational attraction is so small (approximately 1/6 of the gravitational acceleration on Earth) that does not retain atmosphere.


On the other hand, the air (atmosphere) present in Earth  will exert a considerable drag force on the feather (given its shape and small mass), slowing it down, whereas, the effect of the air on the hammer is almost neglectable. In general and as an approximation, the motion of the heavy bodies that fall near the surface is ruled by the free fall equations shown above, so, <em>the result </em>that is<em> expected  when a scientist on Earth drops a hammer and a feather at the same time is that the hammer hits the ground before the feather</em>.

8 0
3 years ago
Read 2 more answers
Answer the following questions as an example of physical or chemical property. (Ive answered the first 3 already)
natulia [17]
Physical properties is actually the measure of properties of a substance without producing any changes init. I.e colour, density melting and boling point. While chemical properties shows that either the specific substance will undergo the r/n or not.
So, gasoline is flammable is it’s chemical property.
5 0
3 years ago
Other questions:
  • An air temperature of 95°C most often exists in which layer of the atmosphere?
    9·1 answer
  • Element (20X) in the periodic table exist in:
    5·1 answer
  • Which of these is a harmful interaction?
    7·1 answer
  • How many grams of CO are needed with an excess of Fe2O3 to produce 35.0 g Fe?
    15·1 answer
  • What happens if you remove all of the carbon<br> dioxide from the atmosphere?
    6·1 answer
  • 1. Which two groups of elements in the periodic table are the most reactive?(1 point) A) alkali metals and halogens B) alkaline
    10·1 answer
  • A 1.803 g sample of gypsum, a hydrated salt of calcium sulfate, CaSO4 is heated at a temperature greater than 170 degree Celsius
    10·1 answer
  • If a 95.0 gram sample of metal at 100.0 oC is placed in 50.0 g of water with an initial temperature of 22.5oC and the final temp
    11·1 answer
  • Help please thank you!
    9·1 answer
  • 1. Tyrone is riding his newly bought motorcycle at 30 m/s when he sees a cat on the road ahead. He applied immediately the brake
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!