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slava [35]
3 years ago
14

Atoms have a tendency to complete their outer energy level. This is known as _____.

Chemistry
2 answers:
Debora [2.8K]3 years ago
6 0
Atoms have a tendency to complete their outer energy level. This is known as octet rule. That is because octet refers to 8 valence electrons, making a element stable in its outer shell. 
Alina [70]3 years ago
5 0

Answer : Option C) The Octet Rule

Explanation : Atoms have a tendency to complete their outer energy level. This is known as Octet Rule.

The octet rule is a chemical rule of thumb which reflects the observation, that atoms of main-group elements tends to combine in such a way that each atom gets eight electrons in its valence shell, which gives it the same electron configuration as that of a noble gas.

In short, the tendency of an atom to fill its valence shell and attain a stable state it acquires or donates the electron is called as octet rule.

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Adding more than one equivalent of HCl to pent-1-yne will lead to which product:______.
Ket [755]

Answer:

c. 2,2-dichloropentane.

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to firstly draw the structure of the reactant, pent-1-yne:

CH\equiv C-CH_2-CH_2-CH_2

Now, we infer the halogen is added to the carbon atom with the most carbon atoms next to it, in this case, carbon #2, in order to write the following product:

CH\equiv C-CH_2-CH_2-CH_2+2HCl\rightarrow CH_3- CCl_2-CH_2-CH_2-CH_2

Whose name is 2,2-dichloropentane.

Regards!

8 0
3 years ago
A sample of gas with a volume of 30.0 ml at 25.0c is heated to 50.0c what is the new volume of the gas
garik1379 [7]

Answer:

The new volume is 60ml

Explanation

using the equation p1v1/n1t1=p2v2/n2t2 we would divied 30 by 25 the multiply by 50 to get 60

7 0
2 years ago
An experiment is conducted using nitrogen monoxide and bromine reacted to form nitrosyl bromide. Calculate Keq for the reaction
Mkey [24]
The answer is Keq= .0891
5 0
3 years ago
Read 2 more answers
In a chemical reaction, a certain amount of hydrochloric acid reacts with 10 grams of sodium hydroxide to produce 19 grams of a
11Alexandr11 [23.1K]

Sodium chloride is the answer I believe
8 0
3 years ago
Calculate the nuclear binding energy in mega-electronvolts (MeV) per nucleon for 136 Ba . 136 Ba has a nuclear mass of 135.905 a
sergey [27]

Answer:

8.194 Mev per nucleon

Explanation:

Mass of Barium = 135.905 amu

number of proton = 56, number of neutron = 80

Md = (Mp + Mn) - Mb Mp is the mass of proton, Mn is the mass of neutron, Mb is the mass of barium and Md is the mass defect

Mn = 1.00867 amu Mp = 1.00728 amu

Md = ( 56 ( 1.00728) + 80 ( 1.00867) = 137.1013 - 135.905 =1.1963 amu

Md = 1.1963 × 1 ÷ ( 6.02214 × 10 ²⁶ amu ) = 1.9865 × 10 ⁻²⁷ kg

Energy = mc² = 1.9865 × 10 ⁻²⁷ kg × (2.99792 × 10 ⁸ m/s)²

E= 1.78537 × 10⁻¹⁰ J

to convert to Mev

1.78537 × 10⁻¹⁰ × 6241457006000 = 1114.33 Mev

binding energy per nucleon = 1114.33 / 136 =8.194 Mev per nucleon

5 0
3 years ago
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