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
nexus9112 [7]
3 years ago
9

write an apology letter to your principal telling him why you were not in the mathematics competition.in 4000 words​

Chemistry
1 answer:
tensa zangetsu [6.8K]3 years ago
3 0
OK now that’s a lot to ask for but if you want someone to actually do that you’re gonna need a lot more points
You might be interested in
How many neutrons are present in an atom with atomic number 9 and mass number 19?​
Kaylis [27]

Answer:

10 neutrons

Explanation:

N=Z-A ie. number of neutrons=mass number-atomic number

N=19-9=10

5 0
3 years ago
Read 2 more answers
If you burn a piece of wood, it becomes a different substance. What type of
lbvjy [14]

Answer:

B. Chemical property

Explanation:

8 0
3 years ago
Read 2 more answers
What is C6H5 called?
zysi [14]
C6H5 is the molecular formula for Phenyl.
5 0
3 years ago
Read 2 more answers
Water and carbon dioxide are both made of 3 atoms<br> True or false
garri49 [273]
Carbohydrates are biological molecules made of carbon, hydrogen, and oxygen in a ratio of roughly one carbon atom (
C
Cstart text, C, end text) to one water molecule (
H
2
O
H
2
​
Ostart text, H, end text, start subscript, 2, end subscript, start text, O, end text). This composition gives carbohydrates their name: they are made up of carbon (carbo-) plus water (-hydrate). Carbohydrate chains come in different lengths, and biologically important carbohydrates belong to three categories: monosaccharides, disaccharides, and polysaccharides.
3 0
3 years ago
Where would the electrons in the 3d sublevel be found? Possibly in any shell only in the n = 3 energy level in energy levels &gt
postnew [5]

Answer:

In the n = 3 energy level

Explanation:

There's is no further explanation for this.

All the electrons in an energy level are distribuited according to the period in the periodic table they are.

So, if we have an atom in period 1, like Hydrogen (H), that atom would only have 1 level energy (n = 1) and in that level, we only have the sub level 1s.

Electrons in the 3d sublevel, are found mostly in all the transition metals of period 3, and it can go from 1 to 10 electrons. To be with the 3d sub level it's neccesary that the energy level to be 3.

energy levels beyond that, like n = 4, we have electrons occupying the 3d sub level, so, primordly, the 3d is found only in energy level 3.

Hope this helps

4 0
2 years ago
Other questions:
  • Complete the equation Fe + HOH = ?
    13·2 answers
  • If a liquid has a density of 0.785, then any object with _____ density will float.
    11·1 answer
  • Calculate the energy, in joules, to heat two cubes (silver and copper), each with a volume of 10.0cm, from 15 C to 25 C​
    13·1 answer
  • What occurs at one of the electrons in both an electrolytic cell and voltaic cell
    6·1 answer
  • Given these reactions, X ( s ) + 1 2 O 2 ( g ) ⟶ XO ( s ) Δ H = − 668.5 k J / m o l XCO 3 ( s ) ⟶ XO ( s ) + CO 2 ( g ) Δ H = +
    9·1 answer
  • How much mass do 2.0 moles of uranium contain
    8·1 answer
  • PLEASE ANSWER!! I NEED HELP :)
    12·1 answer
  • I’ll really appreciate it if you help me out on these 2 questions.
    10·1 answer
  • Describe the difference between extensive and intensive properties
    14·1 answer
  • Could be<br> With this tool, the<br> separated from the
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!