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DedPeter [7]
3 years ago
14

Which of these elements is a metal? Hafnium Radon Silicon Sulfur Selenium

Chemistry
2 answers:
Gre4nikov [31]3 years ago
6 0
Selenium is a non metal, radon is a noble gas, silicon is a metalloid, and sulphur is a non metal. Hafnium is a transition metal.
natali 33 [55]3 years ago
6 0

Answer:

Hafnium

Explanation:

Hafnium is a chemical element with the symbol Hf and atomic number 72. A lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in many zirconium minerals

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Marat540 [252]
<span>by performing more experiments</span>
7 0
3 years ago
What is the approximate pH of a solution labeled 0.050 M HCLO ?
Ksju [112]

Answer:

It would be around 4.4 in PH

Explanation:

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6 0
3 years ago
Balance this equation-<br> __P4+ __02 --&gt; __P2O3
mojhsa [17]

Answer:

P4 + 3O2 → 2P2O3

Explanation:

7 0
3 years ago
K2so4 is a strong electrolyte. determine the concentration of each of the individual ions in a 0.450 m k2so4 solution.
amid [387]

<em>Answer:</em>

  • Conc. of K+ ions = 0.90 M
  • Coc. of SO4∧-2 = 0.45 M

<em>Explanation:</em>

<em>Data Given:</em>

Conc. of H2SO4 = 0.450

As sulphoric acid is a strong electrolyte, it completely dissociate into ions.

H2SO4 ⇆   2K+   +   SO4∧-2

.450 M K2SO4 means that there is .450 mols of K2SO4 in every liter of solution.

                      K2SO4  :  K+                                          K2SO4  : SO4∧-2

                          1      =     2                                                   1     =    1

                     0.450   =   2× 0.450 = 0.90                     0.450 =  0.450×1 = 0.450

<em> Result:</em>

Conc. of potassium ion will be 0.90M    

Coc. of sulphate ions will be 0.45 M

8 0
3 years ago
A solution is prepared by dissolving a
goldfiish [28.3K]

Answer:

119g

Explanation:

Just multiply

2.38% of 500 =

119 g

7 0
3 years ago
Read 2 more answers
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