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
Sindrei [870]
3 years ago
11

Wht is this calledN which chain does it belong​

Chemistry
1 answer:
german3 years ago
5 0

Answer:

national

Explanation:

I don't understand, I'm sorry

You might be interested in
Define an Arrhenius base and describe properties of bases. Use an example to explain how an Arrhenius base will behave in water.
frozen [14]

An Arrhenius base is a molecule that when dissolved in water will break down to yield an OH^-or hydroxide ion in solution.

<h3>What is Arrhenius base?</h3>

An Arrhenius base is a compound that increases the OH^- ion concentration in aqueous solution.

An Arrhenius base is a substance that, when dissolved in an aqueous solution, increases the concentration of hydroxide, or , OH^- ions in the solution.

Bases Properties

Arrhenius bases that are soluble in water can conduct electricity.

Bases often have a bitter taste and are found in foods less frequently than acids. Many bases, like soaps, are slippery to the touch.

Bases also change the colour of indicators. Red litmus turns blue in the presence of a base (see figure below), while phenolphthalein turns pink.

Some bases react with metals to produce hydrogen gas.

Acids (pH < 7.0) react with bases (pH > 7.0) to produce a salt and water. When equal moles of an acid and a base are combined, the acid is neutralized by the base. The resulting mixture will have a more neutral pH.

An Arrhenius acid is a substance that dissociates in water to form hydrogen ions or protons. In other words, it increases the number of H^+ ions in the water. In contrast, an Arrhenius base dissociates in water to form hydroxide ions OH^-.

Example, sodium hydroxide, is added to an aqueous solution. NaOH dissociates into sodium, Na^+, and hydroxide, OH^- ions.

Learn more about the Arrhenius bases here:

https://brainly.in/question/8273595

#SPJ1

8 0
2 years ago
What do we know about elements with half-filled energy levels??
lisabon 2012 [21]
If the energy level of a certain element is filled based on the maximum number of allowable electrons per level, then it is no longer reactive. With this, half-filled energy level means that the element may retain those electrons and attract electrons from other elements or it may give off its electrons. 
6 0
3 years ago
A solution is made by dissolving 58.125 g of sample of an unknown, nonelectrolyte compound in water. The mass of the solution is
e-lub [12.9K]

Answer:

molecular weight (Mb) = 0.42 g/mol

Explanation:

mass sample (solute) (wb) = 58.125 g

mass sln = 750.0 g = mass solute + mass solvent

∴ solute (b) unknown nonelectrolyte compound

∴ solvent (a): water

⇒ mb = mol solute/Kg solvent (nb/wa)

boiling point:

  • ΔT = K*mb = 100.220°C ≅ 373.22 K

∴ K water = 1.86 K.Kg/mol

⇒ Mb = ? (molecular weight) (wb/nb)

⇒ mb = ΔT / K

⇒ mb = (373.22 K) / (1.86 K.Kg/mol)

⇒ mb = 200.656 mol/Kg

∴ mass solvent = 750.0 g - 58.125 g = 691.875 g = 0.692 Kg

moles solute:

⇒ nb = (200.656 mol/Kg)*(0.692 Kg) = 138.83 mol solute

molecular weight:

⇒ Mb = (58.125 g)/(138.83 mol) = 0.42 g/mol

8 0
3 years ago
Calculate the number of moles of 67 point 2 dm3 of nitrogen gas at stp​
Kitty [74]

Answer:

1 mol. = 0.169 mol He.

3 0
3 years ago
The solution of this problem with explaining the solution?
maw [93]
I need a closer pic
5 0
3 years ago
Other questions:
  • 25) How many total ions would be present when an ionic compound is formed between a
    11·1 answer
  • a dog is trained to sit and shake hands. These traits are most likely? a. inherited b. not inherited c. not acquired d. innate
    15·1 answer
  • Write the complete balanced equation for the reaction between aluminum metal (Al) and oxygen gas (O2). You do not need to make t
    15·1 answer
  • Explain in terms of types of matter why methane can be broken down by chemical means but argon cannot?
    11·1 answer
  • Scientists have discovered how to use electricity to power cars. Running cars on electricity could help
    12·2 answers
  • A solenoid is a coil of wire that produces a magnetic field when carrying an electric current. The strength of the magnetic fiel
    11·2 answers
  • 3.
    9·1 answer
  • Questions on Electrolysis, pls help if you can!!​
    8·1 answer
  • If f(x)=x^2 and g(x)=2x+3, what is f(g(x))
    9·2 answers
  • Addition of water to an alkyne gives a keto‑enol tautomer product. Draw an enol that is in equilibrium with the given ketone
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!