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Pachacha [2.7K]
3 years ago
5

Match each vocabulary word with its definition. match the items in the left column to the items in the right column. 1 . periodi

city unlike charges 2 . shell like charges 3 . nonmetals charge on a neutron 4 . noble gases location of an electron 5 . neutral high ionization energies 6 . repel repeating nature of atomic structure 7 . attract least reactive family
Chemistry
2 answers:
Angelina_Jolie [31]3 years ago
7 0

Answer:

Explanation:

1 . periodicity  

   repeating nature of atomic structure

   Periodicity is the repeating nature or trend of an atom on the periodic table. Periodicity can be inform of ionization energy, atomic radius, nuclear charge etc.

2 . shell

     location of an electron

   Electrons are located in shells. It is where electrons are found in an atom and the probability of finding electrons there are high

3 . non-metals

     high ionization energies

    Non-metals have high ionization energies which is the energy required to remove a loosely bonded electron in an atom. Metals have low ionization energies.

4 . noble gases

       least reactive family

  Noble gases are called inert gases. They have complete electronic configuration and this makes them unreactive.

5 . neutral

       charge on a neutron

   Neutrons have no charge on them. They are subatomic particles found in the nucleus alongside the protons

6 . repel

         like charges

   Like charges repel one another

7 . attract

         unlike charges

  Unlike  charges attracts. Positve attracts negative charges.

dezoksy [38]3 years ago
6 0

Answer:

sorry in need  question for points

Explanation:

1 . periodicity  

  repeating nature of atomic structure

  Periodicity is the repeating nature or trend of an atom on the periodic table. Periodicity can be inform of ionization energy, atomic radius, nuclear charge etc.

2 . shell

    location of an electron

  Electrons are located in shells. It is where electrons are found in an atom and the probability of finding electrons there are high

3 . non-metals

    high ionization energies

   Non-metals have high ionization energies which is the energy required to remove a loosely bonded electron in an atom. Metals have low ionization energies.

4 . noble gases

      least reactive family

 Noble gases are called inert gases. They have complete electronic configuration and this makes them unreactive.

5 . neutral

      charge on a neutron

  Neutrons have no charge on them. They are subatomic particles found in the nucleus alongside the protons

6 . repel

        like charges

  Like charges repel one another

7 . attract

        unlike charges

 Unlike  charges attracts. Positve attracts negative charges.

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Answer:

0.480 g of H₂ are produced, in the reaction.

Explanation:

This is the reaction:

Zn(s)  +  2HCl → ZnCl₂ (aq) +  H₂ (g)

We havethe mass of both reactants, so we must work with them to find out the limiting reactant and then, determine the amount of H₂ produced.

Let's convert the mass to moles ( mass / molar mass)

25 g / 65.41 g/mol = 0.382 moles Zn

17.5 g / 36.45 g/mol = 0.480 moles HCl

Ratio is 1:2, so 1 mol of Zn react with the double of moles of HCl.

0.382 moles of Zn would need the double of moles to react, so (0.382 .2) = 0.764 moles of HCl. → We only have 0.480 moles, so the acid is the limiting.

Now let's determine the moles of H₂ formed.

Ratio is 2:1, so If i take account the moles I have, I will produce the half of moles of my product.

0.480 moles / 2 = 0.240 moles of H₂ are produced.

To find out the mass, we must multiply mol . molar mass

0.240 mol . 2g/mol = 0.480 g

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 The heat that is needed  to raise the   temperature  of 78.4 g of aluminium from 19.4 °c to 98.6°c  is    5600.77 j

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