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
Degger [83]
3 years ago
9

Write the electronic configuration of the first 20 element​

Chemistry
1 answer:
yuradex [85]3 years ago
3 0
Argon -Potassium-carbon
You might be interested in
A loss of electrons by an atom creates an anion? <br> true or false
Nostrana [21]
That is false.

An ion is "<span>an electrically charged atom or group of atoms formed by the loss or gain of one or more electrons."

But in detail anion means gaining of electrons.

So, a gain of electrons by an atom creates an anion.</span>
4 0
3 years ago
Read 2 more answers
HBr can be added to an alkene in the presence of peroxides (ROOR). What function does the peroxide serve in this reaction
RSB [31]

Answer:

Radical chain initiator

Explanation:

The peroxide here serves as a radical chain initiator. In the field of chemistry the radical initiatives are those substances that are used in industrial processes like polymer synthesis. These initiatives have weak bonds generally and they're mostly used to create free radicals. These radicals are atoms that have odd numbers of electrons. Peroxide is an example of such.

6 0
2 years ago
Help pls! thank u (:
alexgriva [62]

Answer:

7.65 moles of silver are produced

Explanation:

Zinc, Zn, reacts with silver nitrate, AgNO3, as follows:

Zn + 2AgNO3 → Zn(NO3)2 + 2Ag

<em>Where 1 mole of Zn reacts with an excess of AgNO3 to produce 2 moles of Ag</em>

To solve this question we must convert the mass of Zn to moles and, using the chemical equation, we can find the moles of Ag as follows:

<em>Moles Zn (Molar mass: 65.38g/mol):</em>

250g Zn * (1mol / 65.38g) = 3.824 moles Zn

<em>Moles Ag:</em>

3.824 moles Zn * (2mol Ag / 1mol Zn) =

<h3>7.65 moles of silver are produced</h3>
7 0
3 years ago
Which statement about organic matter is false? A. Organic matter comes from organisms. B. Organic matter contains the element, c
siniylev [52]

B. Organic matter contains the element, carbon.


3 0
3 years ago
Read 2 more answers
List three organelles found in cells and describe their functions.
kozerog [31]

nucleus: controls cell

cell membrane: controls what goes in and out of a cell

cytoplasm: where chemical reactions take place

3 0
3 years ago
Read 2 more answers
Other questions:
  • The voltage generated by the zinc concentration cell described by the line notation zn(s) ∣∣ zn2+(aq,0.100 m) ∥∥ zn2+(aq,? m) ∣∣
    7·2 answers
  • Litmus paper can be used to determine the _______ of a substance. A. relative volume B. relative pH C. temperature D. chemical f
    12·1 answer
  • How many moles of S_2 are needed to produce .750 moles of SO_2 gas?
    6·1 answer
  • The electrolyte in a typical wet storage cell or battery is a mixture of water and A. lead. B. ammonium chloride. C. sulfuric ac
    6·2 answers
  • For the reaction: PCl5(g) ⇌ PCl3(g) + Cl2(g) at 600.0 K, the equilibrium constant is 11.5. Suppose that 1.500 g of PCl5 (MW=208.
    8·1 answer
  • Plzz help 15 points List the fossils in order from oldest to youngest in the diagram. What can you conclude about
    7·1 answer
  • Which of these methods could are used to separate an insoluble solid and soluble solid
    15·1 answer
  • If the reaction is begun with an initial PH3 concentration of 0.95 M, what will be the concentration of PH3 after 30.50 s
    14·1 answer
  • 8. The threats to biodiversity are except:.
    13·1 answer
  • Describe how the mass spectrometry readout is consistent with the chemical structure of hydrochloric acid.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!