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
Sloan [31]
3 years ago
10

2. what is nappening in this diagram:

Chemistry
1 answer:
natka813 [3]3 years ago
7 0

Answer:

I'm sure but send thru this picture for the question so I can help.

You might be interested in
Fill in the gaps. Will give BRAINLIEST and 5 starss!!!
Stells [14]
First gap is BY USING MAGNETS
2nd is ELECTROLYSIS
3rd is EVAPORATION
7 0
3 years ago
Be sure to answer all parts. Nitric oxide, NO·, is a radical thought to cause ozone destruction by a mechanism similar to that o
SIZIF [17.4K]

Answer:

See image attached and explanation

Explanation:

The stratospheric ozone layer is very important in absorbing high-energy ultraviolet radiation that is harmful to living systems on earth. The concentration of ozone in the stratosphere is determined by both thermal and photochemical pathways for its decomposition. Nitric oxide, NO, is a trace constituent in the stratosphere that reacts with ozone to form nitrogen dioxide, NO2, and the diatomic oxygen molecule. The nitrogen-oxygen bond in NO2 is relatively weak. When an NO2 molecule encounters an oxygen atom, it transfers an oxygen, forming O2 and NO. The chemical reactions involved are formations of NO2 following by reaction of NO2 with atomic oxygen for form NO and O2. The sum of both reactions show that the overall reaction is simply the reaction of ozone with atomic oxygen to form two molecules of molecular oxygen. Hence, NO only serves as a catalyst, it does not undergo a permanent change itself.

6 0
3 years ago
How many grams of lead sulfide from when 10.0 g of lead are heated with 3.0 g of sulfur
zaharov [31]

The reaction forms 11.5 g PbS.  

We have the masses of two reactants, so this is a <em>limiting reactant</em> problem.

We know that we will need a balanced equation with masses, moles, and molar masses of the compounds involved.  

<em>Step 1</em>. <em>Gather all the information</em> in one place with molar masses above the formulas and everything else below them.  

M_r:      207.2  32.06  239.28

              Pb +       S →    PbS

Mass/g: 10.0       3.0

<em>Step 2</em>. Calculate the <em>moles of each reactant  </em>

Moles of Pb  = 10.0 g Pb × (1 mol Pb /207.2 g Pb) = 0.048 26 mol Pb  

Moles of S = 30 g S × (1 mol S/32.06 g S) = 0.9357 mol S

S<em>tep 3</em>. Identify the <em>limiting reactant</em>

Calculate the moles of PbS we can obtain from each reactant.  

<em>From Pb</em>: Moles of PbS = 0.048 26 mol Pb × (1 mol PbS/1 mol Pb )

= 0.048 26 mol PbS

<em>From S</em>: Moles of S = 0.9357 mol S × (1 mol PbS/1 mol S) = 0.9357 mol PbS

<em>Pb is the limiting reactant</em> because it gives the smaller amount of PbS.

<em>Step 4</em>. Calculate the <em>mass of PbS</em>.

Mass = 0.048 26 mol PbS × (239.28 g PbS/1 mol PbS) = 11.5 g PbS

The reaction produces 11.5 g PbS.

4 0
3 years ago
I need help pleaseeeeeeee
posledela
Dorsal Side: B
Ventral Side: D
Anterior End: A
Posterior End: C
6 0
2 years ago
What is responsible for the sharp decrease in ionization energy between the elements with 2 and 3 atomic number? 10 and 11?
PSYCHO15rus [73]
An extra shell, which means further distance between those electrons in the valence shell and the nucleus. Ionisation energy refers to the energy required to remove valence electrons. There will be more energy required if the valence electrons are closer to the nucleus that have a positive charge, because of more attraction. If there is an extra shell, there is further distance, less attraction and hence less energy required.
6 0
2 years ago
Other questions:
  • At what temperature would the volume of a gas be 0.550 L if it had a volume of 0.432 L at –20.0 o C?
    8·2 answers
  • 2) which statement describes ionic bonding?
    5·1 answer
  • Which of the following statements are true about metallic bonds?
    10·1 answer
  • Under the same conditions of solar radiation, compared with oceans the land will warm_________
    12·1 answer
  • A runner stood at the 100-meter mark on a track. When the timer started, the runner sprinted north to the 200-meter mark. It too
    5·2 answers
  • Group VIII corresponds to the...
    14·1 answer
  • Complete and balance the following nuclear equations by including the missing particle. You may want to reference (Pages 906 - 9
    10·1 answer
  • What is the volume of a 3.00M(mol/L) solution made with 122g of LiF?
    7·1 answer
  • How do valence electrons interact between non polar covalent, polar covalent, and ionic bonds?​
    9·1 answer
  • PLEASE HELP WILL GIVE BRAINLIEST
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!