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
jeka57 [31]
3 years ago
15

The symbol equation for combustion of a hydrocarbon is shown below. What number will go before the oxygen reactant when

Chemistry
1 answer:
Alchen [17]3 years ago
6 0
Yes very good indeed
You might be interested in
True or false?? All atoms of the same element have the same atomic mass
AnnyKZ [126]

Answer:

False

Explanation:

8 0
3 years ago
Read 2 more answers
Identify the neutral element represented by this excited-state electron configuration, then write the ground-state electron conf
sineoko [7]

Answer:

1s² 2s² 2p³

Nitrogen

Explanation:

Excited state configuration: 1s² 2s² 2p² 3s¹

Unknown:

Ground state configuration = ?

Element symbol = ?

Solution:

Let us start by understanding what a ground state configuration entails:

A ground state configuration shows the lowest allowed energy levels of an atom. The excited state denotes when electrons have moved to higher energy levels away from their ground state.

The superscript in the configuration depicts the number of electrons in each of the sublevels.

We can use this number to identify the atom we are dealing with:

 Total number of electrons = 2 + 2 + 2 + 1 = 7 electrons

The element with 7 electrons on the periodic table is Nitrogen.

Now, the ground state configuration:

In writing the electronic configuration of an atom, certain rules must be complied with.

  • Aufbau's principle states that the sublevels with lower energies are filled up before those with higher energies. The order of filling is:

        1s 2s 2p 3s 3p 4s etc

To fill the s-orbital = 2 electrons

                p-orbital = 6 electrons

The outermost shell electrons are usually the ones excited.

  Now, the 3s¹ shell is an excited one taking 1 electron from the second energy level;

 The ground state configuration is 1s² 2s² 2p³

5 0
3 years ago
How is hydrogen in heavy water different from hydrogen in normal water?
tatyana61 [14]

Answer:

I'd say the correct answer is A

Explanation:

hope this helps:)

sorry if its wrong:(

6 0
2 years ago
3. What is an element?​
laila [671]

Answer:

copper

Explanation:

it's on the periodic table of elements

7 0
3 years ago
Read 2 more answers
Because water is an excellent _________, it transports sugars, amino acids, vitamins, minerals, and ions throughout the body.
GenaCL600 [577]
I think the answer is solvent but i'm not very sure.
3 0
2 years ago
Other questions:
  • What mass of compound must be weighed out to have a 0.0223 mol sample of H2C2O4 (M=90.04 g/mol)?
    5·1 answer
  • Which of the following is a transuranium element?<br> Ra<br> Am<br> Tc<br> Pa
    13·1 answer
  • .Photography first used at a crime scene. before the 1800s during the 1800s 1900-1988 1990-present
    10·2 answers
  • What is the name of the ionic compound AlBr3?
    12·2 answers
  • Label the reactants, products, and intermediates.
    6·1 answer
  • A + 2 B + 4 C → products is known to be second order in A, first order in B and independent of the concentration of C. What is t
    14·1 answer
  • An increases in the pressure on a gas, increases the speed at which particles of
    14·1 answer
  • A construction worker uses a pulley and a rope to
    13·1 answer
  • If the universe is expanding but the expansion is slowing down, what will the eventual
    13·1 answer
  • Is water wet????????????????
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!