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
Phoenix [80]
3 years ago
7

Electron configuration for potassium​

Chemistry
1 answer:
sergey [27]3 years ago
3 0

Answer:

[Ar] 4s¹

Explanation:

You might be interested in
Convert CH4 to C2H6?<br> Dehydration of alcohol by conc. H2SO4.....?
umka21 [38]

Answer:

1.

CH4 + Cl2 → CH3-Cl + HCl

2CH3-Cl +2Na → C2H6

2.

CH3-CH2-OH ---(conc. H2SO4)----> CH2=CH2 + H2O

Explanation:

1. Conversion of methane to ethane

Step 1 - Treat methane with chlorine gas presence of ultraviolet light

CH4 + Cl2 → CH3-Cl + HCl

Step 2 - Treat chloromethane formed in step 1 with the sodium metal and dry ether  (Wrutz synthesis)

2CH3-Cl +2Na → C2H6

2. On treating ethanol with excess of concentrated sulfuric acid, it converts into ethene

CH3-CH2-OH ---(conc. H2SO4)----> CH2=CH2 + H2O

6 0
3 years ago
Need help asap!!!!! Plz
Nostrana [21]

Answer:

153.8 g/mol.

Explanation:

The molar mass of a compound = ∑ atomic masses of atoms.

<em>∴ The molar mass of CCl₄ = 1(atomic masss of C) + 4 (atomic mass of Cl) </em>= (12.0 g/mol) + 4 (35.45 g/mol) = <em>153.8 g/mol.</em>

6 0
3 years ago
Which of the following is NOT true of electronegativity?
polet [3.4K]
Whats the "following"?
8 0
3 years ago
Define the term valence electron and explain how to find the number of valence electrons in family one and family 2.
goblinko [34]
Valence Electron is the outermost electrons, family(Alkali) 1 has 1 valence electrons and family(Alkaline) 2 has 2 valence electrons.

Hope this helps
8 0
3 years ago
The psychoactive drug sold as a methamphetamine - "speed" (c10h15n) - undergoes a series of reactions in the body; the net resul
Phoenix [80]

Answer: The coefficient of nitrogen in the given equation is 2.

Explanation: The reaction for the oxidation of methamphentamine with oxygen gas in the body is given by:

4C_{10}H_{15}N(s)+55O_2(g)\rightarrow 40CO_2(g)+30H_2O(l)+2N_2(g)

By Stoichiometry,

4 moles of methamphentamine reacts with 55 moles of oxygen gas to produce 40 moles of carbon dioxide gas, 30 moles of water and 2 moles of nitrogen gas.

Coefficient of C_{10}H_{15}N=4

Coefficient of O_2=55

Coefficient of CO_2=40

Coefficient of H_2O=30

Coefficient of N_2=2

Hence, the coefficient of nitrogen in the given equation is 2.

8 0
3 years ago
Other questions:
  • Given the atomic weights of carbon, 12.01; hydrogen, 1.01; and oxygen, 16.0, what is the molar mass of glucose (C6H12O6)?
    9·2 answers
  • What words do scientists use to classify their ideas?
    14·1 answer
  • The scientific method is one application of crítical thinking.<br> True or false
    9·2 answers
  • Which of the following scenarios is representative of parasitism?
    7·2 answers
  • is a cation or anion. In the second row, write the symbol for the ion that an atom of fluorine is mostly likely to form and then
    7·2 answers
  • An irregular lump of an unknown metal has a measured density of 5.50 g/mL. The metal is heated to a temperature of 153 °C and pl
    14·1 answer
  • Balanced equation for complete combustion
    11·1 answer
  • What material would be safest to use as an insulator to cover electrical wires?
    14·2 answers
  • How many atoms of aluminum (Al) are in 6.4 mol of aluminum
    6·1 answer
  • 3. Beaker A (Heat Meter) tells us how much heat energy left the hot
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!