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Alchen [17]
3 years ago
14

How many neutrons make up one of these potassium atoms?

Chemistry
2 answers:
r-ruslan [8.4K]3 years ago
7 0

Answer:

20

Explanation:

Doss [256]3 years ago
6 0
Potassium has twenty neutrons
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Sodium Chloride is an ionic compound. Its molar mass is 58.44g. One formula unit of NaCl consists of one____, whose chemical sym
saul85 [17]

Answer: One formula unit of NaCl consists of one cation, whose chemical symbol is Na^+ and one anion whose chemical symbol is Cl^-

Explanation:

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.  

The cation is formed by the metal sodium which forms  Na^+ and the anion is formed by non metal chlorine which forms Cl^-.

For a formula unit of sodium chloride,  the charges have to be balanced , thus the valencies of ions are exchanged and the neutral compound result. Thus

Na^+ and  Cl^- combine to form neutral NaCl

5 0
2 years ago
The removal of silver tarnish from silverware using aluminum foil and a solution of electrolyte is an example of
eimsori [14]

Answer:

The answer is C. An electrochemical cell.

Explanation:

The aluminum ion react with the sulfide to form aluminum sulfide.

8 0
3 years ago
Does the bowling ball have more potential energy or kinetic energy just before it hits the ground? Why?
AnnZ [28]

Answer:

Equal

Explanation:

When the bowling ball is first dropped, it has a maximum potential energy but minimum kinetic energy.  The height is max, so the potential energy will be greatest.  Velocity is 0, so kinetic energy will be 0.

6 0
3 years ago
Cauon. Anion Molecule Type: : Formula Write the name for the compound provided, along with the criteria listed below. 13.) Naci
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Answer:

Genetic engineering, recombinant DNA technology, genetic modification/manipulation (GM) and gene splicing are terms that apply to the direct manipulation of an organism's genes. ... Genetic engineering uses the techniques of molecular cloning and transformation to alter the structure and characteristics of genes directly.

Explanation:

8 0
3 years ago
How many grams of k2so4 would you need to prepare 1500 g of 5.0% k2so4 solution?
son4ous [18]
Data Given:
                                  % w/w  =  5 %

                    Solution weight  =  1500 g

                       Solute weight  =  ?

Formula Used:
                            % w/w  =  (Mass of Solute / Mass of Solution) × 100

Solving for Mass of Solute,
         
                       Mass of Solute  =  (% w/w × Mass of Solution) ÷ 100

                       Mass of Solute  =  (5 × 1500 g) ÷ 100

                       Mass of Solute  =  75 g K₂SO₄
5 0
3 years ago
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