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Black_prince [1.1K]
3 years ago
12

Which elemental clues contain sufficient info to place the element using no other info

Chemistry
1 answer:
zaharov [31]3 years ago
8 0

Atomic number

Explanation:

The atomic number is enough clue that can be used to proper place elements  without any other information. The atomic number is the number of protons in an atom. Protons are positively charged particles in the nucleus of an atom.

  • To place elements on the periodic table, the periodic law which states that "properties of elements are a periodic function of their atomic number" must be obeyed.
  • Using the atomic number, one can determine the number of electrons in a neutral atom, the charges on an ion e.t.c.
  • Atomic number can also be used to write the electronic configuration of an atom be it the shell notation, sublevel notation and the lewis dot structure.

Learn more:

Atomic numbers brainly.com/question/5425825

About atomic numbers brainly.com/question/1379579

Electronic configuration brainly.com/question/549647

#learnwithBrainly

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Which of the following is a galvanic cell?
sladkih [1.3K]

C. Aluminum (Al) oxidized, zinc (Zn) reduced

<h3>Further explanation</h3>

Given

Metals that undergo oxidation and reduction

Required

A galvanic cell

Solution

The condition for voltaic cells is that they can react spontaneously, indicated by a positive cell potential.

\large {\boxed {\bold {E ^ ocell = E ^ ocatode -E ^ oanode}}}

or:  

E ° cell = E ° reduction-E ° oxidation  

For the reaction to occur spontaneously (so that it E cell is positive), the  E° anode must be less than the E°cathode

If we look at the voltaic series:

<em>Li-K-Ba-Ca-Na-Mg-Al-Mn- (H2O) -Zn-Cr-Fe-Cd-Co-Ni-Sn-Pb- (H) -Cu-Hg-Ag-Pt-Au </em>

The standard potential value(E°) from left to right in the voltaic series will be greater, so that the metal undergoing an oxidation reaction (acting as an anode) must be located to the left of the reduced metal (as a cathode)

<em />

From the available answer choices, oxidized Al (anode) and reduced Zn (cathode) are voltaic/galvanic cells.

7 0
3 years ago
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Nat2105 [25]

The answer is: Survival of the form that will leave the most copies of itself in successive generations.

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This is example of natural selection and adaptation.

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The environment is constantly changing and different alleles are favored.  

5 0
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vredina [299]

Answer:

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Explanation:

It's atomic number is 18

hope that's it

6 0
2 years ago
When steam condenses into water, __________. When steam condenses into water, __________. heat is given off by the water no heat
lys-0071 [83]

Answer: heat is given off by the water

Explanation:

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Please help me with this
Zina [86]

Answer:

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