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
ycow [4]
4 years ago
7

What is the error in the electron configuration, 1s2 2s2 2p6 3s2 3p5 4s2?

Chemistry
1 answer:
Leviafan [203]4 years ago
3 0
1s2 2s2 2p6 3s2 3p6 4s1

s orbital can hold 2 electron
p orbitals can hold 6 electron
You might be interested in
Peppered moths come in two colors, black and white. What did Kettlewell show, with regard to peppered moth populations and tree
Vera_Pavlovna [14]
A is the answer because the trees turned blackish from the coal so moths that were black could camouflage on those trees easier.
4 0
4 years ago
Read 2 more answers
how do i Calculate the grams of silver chloride produced from 18.5 ml of 4.5M magnesium chloride with 99.2 ml of 1.75 M silver n
sertanlavr [38]

Answer:

4.21 g of AgCl

3.06 g of BaCl₂ will be needed to complete the reaction

Explanation:

The first step is to determine the reaction.

Reactants: BaCl₂ and AgNO₃

The products will be the silver chloride (AgCl) and the Ba(NO₃)₂

The reaction is: BaCl₂(aq) + 2AgNO₃(aq) → 2AgCl(s) ↓ + Ba(NO₃)₂ (aq)

We determine the silver nitrate moles: 5 g . 1mol / 169.87 g = 0.0294 moles. Now, according to stoichiometry, we know that ratio is 2:2-

2 moles of nitrate can produce 2 moles of chloride, so the 0.0294 moles of silver nitrate, will produce the same amount of chloride.

We convert the moles to mass → 143.32 g / mol . 0.0294 mol = 4.21 g of AgCl.

Now, we consider the BaCl₂.

2 moles of nitrate can react to 1 mol of barium chloride

Then, 0.0294 moles of silver nitrate will react to (0.0294 . 1) /2 = 0.0147 moles. We convert the moles to mass:

0.0147 mol . 208.23 g /1mol = 3.06 g of BaCl

Explanation:

5 0
4 years ago
The formula is used to calculate the yield of a reaction.
frosja888 [35]
<span>The theoretical yield for a reaction is calculated based on the limiting reagent. This allows researchers to determine how much product can actually be formed based on the reagents present at the beginning of the reaction.</span> <span>The actual yield will never be 100 percent due to limitations.</span>

5 0
3 years ago
Read 2 more answers
an atom has an atomic number of 9 a mass number of 19 and an electron configuration of 2-6-1 explain why the number of electrons
sukhopar [10]
You can tell that the atom is in the excited state because:

- Electron configuration should follow the 2-8-8-2 rule, meaning that the inner shell should be filled before the next shell can start holding electrons.

- Instead of the atom's electron configuration being in the ground state at 2-8-8-1, electrons from the second shell have jumped to the third.
5 0
3 years ago
I'M GIVING BRAINIEST AND I'LL RATE YOU THAANKS!!!!
SIZIF [17.4K]

Answer:

0.5 mole of a SO2 contains 3.01 into 10 ^23 molecules of So2.

Explanation:

Have a great day <3

5 0
3 years ago
Read 2 more answers
Other questions:
  • One mole of H atom is equal to
    5·1 answer
  • 1.6 moles of phosphorus, P8 reacts with oxygen gas to form tetraphosphorus decoxide. How many grams of P4O10 are formed?P8 + 5O2
    5·1 answer
  • In the acid-catalyzed dehydration of 2−methyl−1−propanol, what carbocation would be formed if a hydride shift accompanied cleava
    6·1 answer
  • If you started with 0.183 mol of N2 and 0.549 mol of H2, and they completely reacted in the reaction vessel, determine the total
    6·1 answer
  • n the first step of the industrial process for making nitric acid, ammonia reacts with oxygen in the presence of a suitable cata
    6·1 answer
  • How many grams of Cl2 will be produced along with 250.0 kJ of heat in the following reaction? PCl5(g) + 87.9 kJ PCl3(g) + Cl2(g)
    6·2 answers
  • Dry ice is carbon dioxide in the solid state. 1.28 grams of dry ice is placed in a 5.00 L chamber that is maintained at 35.1°C.
    6·1 answer
  • An atom of cadmium that has 66 neutrons has a mass number of
    10·1 answer
  • What is the mass of 2.2 moles of magnesium chloride? With work shown
    14·2 answers
  • A gas with a volume of 250 mL at a temperature of 293K is heated to 324K. What is the new volume of the gas?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!