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
dmitriy555 [2]
3 years ago
12

What do two or more atoms form when they share electrons in a chemical bomd

Chemistry
1 answer:
Pachacha [2.7K]3 years ago
6 0
A Covalent bond forms when two or more atoms share electrons in a chemical bond
You might be interested in
The filling of which orbital is represented by the transition metals in period 4?
Sindrei [870]

Answer: 3d

Explantion:

1) Period 4 contains the elements with atomic numbers 19 through 36.

2) The elements with atomic numbers 19 (K) and 20 (Ca) fill the orbital 4s.

3) After that, as Aufbau's rule may help you to remember, the energy of the orbitals 3d is lower than the energy of the orbtitals 4p. So, the element 21 (Sc) start fillind the orbital 3d.

There are ten 3d orbitals, so the elements 21 through 30 fill the 3d orbitals.

Those elements, called transition metals are: Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, and Zn.

When the 3d orbitals are full, the next elements in the same period 4, fill the six 4p orbitals.

3 0
4 years ago
Read 2 more answers
The formula weight of potassium dichromate (k2cr2o7) is __________ amu.
Gre4nikov [31]

The given compound is K_{2}Cr_{2}O_{7}

Each formula unit of K_{2}Cr_{2}O_{7} has 2 mol Potassium (K) atoms, 2 mol Chromium (Cr) atoms and 7 mol Oxygen (O) atoms.

Atomic weight of potassium is 39.0983 amu

Atomic weight of Chromium is 51.9961 amu

Atomic weight of Oxygen is 15.9994 amu.

Therefore the formula weight of K_{2}Cr_{2}O_{7} =

2 * 39.0983 amu + 2 * 51.9961 amu + 7 * 15.9994 amu

= 294.1846 amu

4 0
4 years ago
The emission spectrum of cesium contains two lines whose frequencies are (a)
Lady bird [3.3K]

The lines are violet and blue respectively.

<h3>What is the energy?</h3>

We know that the energy of the photon could be obtained by the use of the equation;

E = hf

E = energy

h = Plank's constant

f = frequency

For the first line;

E = 6.6 * 10^-34 Js * 3.45 x 10^14 Hz = 2.3 * 10^-19 J

Given that;

E = hc/λ

λ = hc/E

λ = 6.6 * 10^-34 * 3 * 10^8/2.3 * 10^-19

λ = 8.61 * 10^-7 m or 861 nm

The color is violet

For the second line;

E = 6.6 * 10^-34 Js * 6.53 xx 10^14 Hz

E = 4.3 * 10^-19 J

E = hc/λ

λ = hc/E

λ =  6.6 * 10^-34 * 3 * 10^8/4.3 * 10^-19

λ = 4.60 * 10^- 7 m or 460 nm

The color is blue

Learn more about emission spectrum:brainly.com/question/13537021

#SPJ1

8 0
2 years ago
19 grams of sodium and 34 grams of chlorine are measured out and put into separate glass vials that weigh 10 grams each. Then so
vaieri [72.5K]

Answer:

63.02 g.

Explanation:

  • Na reacts with Cl₂ according to the balanced equation:

<em>2Na + Cl₂ → 2NaCl,</em>

It is clear that 2 mole of Na react with 1 mole of Cl₂ to  produce 2 moles of NaCl.

  • Firstly, we need to calculate the no. of moles of Na and Cl₂:

no. of moles of Na = (mass/atomic mass) = (19.0 g/22.9897 g/mol) = 0.826 g.

no. of moles of Cl₂ = (mass/atomic mass) = (34.0 g/70.906 g/mol) = 0.48 g.

  • From the stichiometry, Na reacts with Cl₂ with a molar ratio (2:1).

<em>So, 0.826 mol of Na "the limiting reactant" reacts completely with 0.413 mol of Cl₂ "left over reactant".</em>

The no. of moles of Cl₂ remained after the reaction = 0.48 mol - 0.413 mol = 0.067 mol.

∴ The mass of Cl₂ remained after the reaction = (no. of moles of Cl₂ remained after the reaction)(molar mass of Cl₂) = (0.067 mol)(70.906 g/mol) = 4.75 g.

  • To get the no. of grams of produced NaCl:

<u><em>using cross multiplication:</em></u>

2 mol of Na produce  → 2 mol of NaCl, from the stichiometry.

∴ 0.826 mol of Na produce  → 0.826 mol of NaCl.

∴ The mass of NaCl produced after the reaction = (no. of moles of NaCl)(molar mass of NaCl) = (0.826 mol)(58.44 g/mol) = 48.27 g.

∴ The total weight of the glass vial containing the final product = the weight of the glass vial + the weight of the remaining Cl₂ + the weight of the produced NaCl = 10.0 g + 4.75 g + 48.27 g = 63.02 g.

7 0
3 years ago
Read 2 more answers
Which of the following is the best conductor of electricity
Lelu [443]
Nacl aq. is the best conductor of electricity as in aques state the ions become lose or mobile which are free to move and conduct electricity.
8 0
3 years ago
Read 2 more answers
Other questions:
  • A sample of gasoline contains various hydrocarbons, which comprise atoms of carbon, hydrogen, and oxygen. The hydrocarbons mix t
    6·1 answer
  • Draw the correct structure for 4-methyl-2-heptanone or 4-methylheptan-2-one.
    15·2 answers
  • Bacteria are invisible to humans except under a microscope. what evidence did Pasteur use to show that bacteria was the cause of
    8·1 answer
  • What forms when copper reacts with silver nitrate?
    9·1 answer
  • Molecular formula of SO2
    7·1 answer
  • What is the mass of 5 moles of Fe2O?
    12·1 answer
  • What is a synthetic reaction?​
    14·2 answers
  • How are stars and comets different?
    11·1 answer
  • Which is the correct answer
    8·2 answers
  • Explain how you determine the energy levels/shells and electrons for an element?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!