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
babymother [125]
3 years ago
15

Can u help?? It's science and I'm in 6th grade

Chemistry
1 answer:
kvv77 [185]3 years ago
6 0
Yeah I can help I'm an A student in science
You might be interested in
What compound name is As5O2
levacccp [35]

Answer:

Arsenic pentoxide

Explanation:

3 0
2 years ago
Which electron configuration represents the electrons of an atom in an excited state? * 2-3 2-7-1 2-8 2-8-1​
Lemur [1.5K]

2-7-1

<h3>Further explanation </h3>

Electrons can move the shell up or down by releasing energy or absorbing energy  

Excited electrons show higher electron transfer to the shell by absorbing energy  

So it can be concluded that there are 2 conditions:  

Ground state is the state of electrons filling shell with the lowest energy levels.  

Excited state is the state of electrons which occupies a higher energy level  

The state of excited electrons can be seen from the presence of electrons which do not fill the skin completely but fill the skin afterward  

2-7-1

From its 8 electron configuration, filling 3 shells, 2 electrons in the firs shell, 7 electrons in the second shell and 1 electron in the third shell

the electrons in the third shell should fill the electrons in the second shell first according to Aufbau rule (lower energy shells)

\tt  1s^22s^22p^4\rightarrow ground~state\\\\1s^22s^22p^33s^1\rightarrow excited~state

8 0
3 years ago
Will give brainliest!!!!
butalik [34]
According to the law of conservation of mass, the mass of reactants will be equal to the mass of the products. The mass of products and reactants will only differ during a nuckear reaction
Changing of the physical state of water is not a nuclear reaction. So becoz of that the mass will remain constant without any change.
3 0
3 years ago
Read 2 more answers
How many moles of butane (C4H10) must be burned in an excess of O2 to produce
Sedbober [7]

Answer: 6,25 moles

Explanation: mark amount of butane x.

From equation you can calculate x in a following way:

2/x = 8/25. 8x = 50. And x = 6,25

4 0
2 years ago
Which pair of elements form an ionic bond with each other?
kherson [118]
1) KCl 
Potassium Chloride is an ionic bond because it exists between a metal and a nonmetal. The Potassium ion is a cation, carrying a +1 charge; the Chlorine is an anion, carrying a -1 charge. 
8 0
2 years ago
Other questions:
  • Bohr looked to improve upon Rutherford’s model of the atom because Bohr thought that Rutherford’s model:
    13·1 answer
  • What could you do to change the volume of a gas?
    5·2 answers
  • What is the total number of moles of oxygen atoms present in 1 mole of mg(c1o3)2
    6·2 answers
  • A person loses 2.70 lb in two weeks. how many grams did they lose?
    5·1 answer
  • For the reaction ? NO + ? O2 → ? NO2 , what is the maximum amount of NO2 which could be formed from 16.42 mol of NO and 14.47 mo
    10·1 answer
  • What is log of 52????
    13·2 answers
  • Gravity on Earth is 9.8 m/s2, and gravity on the Moon is 1.6 m/s2.
    11·2 answers
  • Since the groups and periods of the Periodic Table are directly correlated,
    10·1 answer
  • Trees, solar energy, and water are examples of:
    8·2 answers
  • Suppose you are performing a titration. at the beginning of the titration, you read the titrant volume as 2.42 ml. after running
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!