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Alla [95]
2 years ago
7

¿Cuál es la cantidad de electrones (e-) de Níquel si tiene una masa atómica de 58.6 y un número

Chemistry
1 answer:
daser333 [38]2 years ago
4 0

Answer:

Hi do we translate a this

Explanation:

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Which formula correctly represents the product of an addition reaction between ethene and chlorine?
Serjik [45]
The formula that correctly represents the product of an addition reaction between ethene and chlorine is  C2H4Cl2
Addition reaction occurs when an atom is added to a compound that has a double bond or triple bond (unsaturated hydrocarbons). Unsaturated compounds are associated with addition reactions. For example Ethene is an example of unsaturated hydrocarbon; when reacted with chlorine gas , chlorine atoms are added to each carbon atoms. 
4 0
3 years ago
If you are given a 0. 31 g piece of sodium metal to react with water, how many moles of hcl would it take to neutralize the sodi
Sphinxa [80]

The moles of HCl to neutralize the sodium hydroxide produced is<u> 0.0135 mole.  </u>

Neutralization or neutralization is a chemical response wherein an acid and a base react quantitatively with each other. In a reaction in water, neutralization outcomes in there being no excess of hydrogen or hydroxide ions gift in the answer.

<u>calculation:-</u>

<u />

2Na + 2H₂O  -----> 2NaOH + H₂

2 mol or 46g of Na produces 80 grams of NaOH

∴ 0.31 g of Na will produce = 80/46 × 0.31

                                              =  0.54 gram of NaOH.

mol of NaOH = 0.54/40

                      = 0.0135

Since both Hcl and NaOH have the same valance factor,

1 mole NaOH is needed to neutralize 1 mol HCl

∴ 0.0135 mole of NaOH will need = 0.0135 mole of HCl

mass = 0.0135 × 36.5

         =<u> 0.493 grams of HCL.</u>

Learn more about neutralizing here:-brainly.com/question/23008798

#SPJ4

4 0
1 year ago
127) Thirty-six colonies grew in nutrient agar from 1.0 ml of undiluted sample in a standard plate count. How many cells were in
SIZIF [17.4K]

Answer:

36

Explanation:

Since the sample was undiluted the number of colonies is the number that grew on the nutrient agar which is 36 colonies. If it was diluted for example let say 0.1 ml from a dilution in which 1 ml of the sample was added to 9 ml of water, and it grew  colonies then  0.1 ml  yielded  6 colonies, 1 ml of the diluted sample will yield 60 colonies and 10 ml will have 600 colonies and therefore the 1 ml undiluted sample will have 600 colonies.

6 0
3 years ago
Name each of the isotope
Alex73 [517]

Answer:

Examples of radioactive isotopes include carbon-14, tritium (hydrogen-3), chlorine-36, uranium-235, and uranium-238.

8 0
2 years ago
Read 2 more answers
The molecular geometry of SO 3 is a tetrahedral b. bent Coctahedral d. trigonal planar pyramidal
Dimas [21]

Answer:

The correct option is: d. trigonal planar              

Explanation:

Sulfur trioxide is a chemical compound and the chemical formula of the compound is SO₃. In this molecule, the sulfur atom is in its +6 oxidation state and is covalently bound to three oxygen atoms. Sulfur trioxide is a neutral molecule. According to the VSEPR theory, Sulfur trioxide has a<u> trigonal planar molecular geometry.</u>

7 0
3 years ago
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