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
Airida [17]
3 years ago
6

How many grams of H2 will be produced, given 27.4 g of Al to start with?

Chemistry
1 answer:
pishuonlain [190]3 years ago
6 0
3.07g H2

27.4/26.98/2x3x1.01x2=3.07
You might be interested in
0.820 L has a mass of 2.56kg what is the density of this liquid in kg/L
3241004551 [841]

Density ρ=\frac{m}{v}

=\frac{2.56 kg}{0.820 L} \\=3.121kg/L

8 0
3 years ago
What happens to an electron when it emits a photon
Flura [38]

Answer:

when electron emit the radiations it means it jumped to the lower energy level from higher energy level.

Explanation:

When electron jump into lower energy level from high energy level it loses the energy.

The process is called de-excitation.

Excitation:

When the energy is provided to the atom the electrons by absorbing the energy jump to the higher energy levels. This process is called excitation. The amount of energy absorbed by the electron is exactly equal to the energy difference of orbits.

De-excitation:

When the excited electron fall back to the lower energy levels the energy is released in the form of radiations. this energy is exactly equal to the energy difference between the orbits. The characteristics bright colors are due to the these emitted radiations. These emitted radiations can be seen if they are fall in the visible region of spectrum.

7 0
3 years ago
What is the difference between Dalton’s and modern atomic theory
stira [4]

Answer:

Dalton says atoms of a given element are identical in mass and the modern one says atoms of a given element are identical in average mass. ... Modern theory says they atoms can be subdivided, created or destroyed by ordinay means.

hope this helps!

4 0
2 years ago
What is the chemical formula for methane?
aleksandr82 [10.1K]
The chemical formula for methane is CH4

6 0
3 years ago
Atoms in a gaseous state have
Mumz [18]
More energy than atoms in a liquid state
6 0
3 years ago
Read 2 more answers
Other questions:
  • The directness of the sunlight at a specific latitude will determine the amount of solar energy that latitude receives. Please s
    15·1 answer
  • Which of the following does not indicate a chemical change?
    5·1 answer
  • 1. Brandon is flying to the Western United States. His plane manages to cover 700 miles
    7·1 answer
  • What is this number in standard notation, 8.2x10^2
    11·1 answer
  • The total momentum of a group of objects remains________ unless outside forces act on the group.
    6·1 answer
  • What are the units of Mass?
    10·2 answers
  • The following physical constants are for water, H2O.
    10·1 answer
  • Select the correct answer.
    5·2 answers
  • How many moles of C5H120 would it take to generate 4.2 moles of CO2 from combustion?
    10·1 answer
  • Classify each of the following reactions as either exothermic or endothermic: 2H,O(l) + heat → 2H₂(g) + O₂(g)​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!