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8_murik_8 [283]
3 years ago
15

Which bond has one sigma and two pi bonds? abc​

Chemistry
2 answers:
NNADVOKAT [17]3 years ago
7 0
B
Double bonds have one sigma and 2 pi bonds
Single bonds have 1 sigma and 1 pi bonds
3 bonds have 1 sigma and 2 pi bonds
Julli [10]3 years ago
6 0

Answer:

It is letter B.

Explanation:

believe my answer cause I answered this kind of question in ny exam

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1. How is the number of energy levels in an atom related to the period number?
Natalka [10]

Answer:

The highest energy level number (1 through 7) for the electrons in an atom corresponds to the period (or row) in the periodic table to which that atom belongs. Because there are 7 periods in the table, there are 7 energy levels. For example, hydrogen (H) is in the first period, so it has only one energy level.

4 0
3 years ago
If cells did not work together what would happen to the organisms
arlik [135]

Surely, If cells did not work together in an organism, there won't be formation of new cells and life process would stop

<h3>Living organisms </h3>

Living organisms; be it plants or animals are any organic or living system composed of cells and function as an individual entity.

  • All living organisms share a number of key characteristics or functions such as movement, respiration, homeostasis, reproduction, growth, evolution, competition and others.

  • Animals and plants also posess systems such as the digestive, skeletal, transport, nervous, excretory, respiratory and reproductive system.

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So therefore, surely, If cells did not work together in an organism, there won't be formation of new cells and life process would stop

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brainly.com/question/17259533

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5 0
1 year ago
What is an ion and how is it formed?
grin007 [14]

Answer: Ions are an atom or molecule with a net electric charge due to the loss or gain of one or more electrons. They are formed when atoms lose or gain electrons in order to fulfill the octet rule and have full outer valence electron shells.

Explanation:

When they lose electrons, they become positively charged and are named cations. When they gain electrons, they are negatively charged and are named anions.

6 0
3 years ago
The difference between ATP and the nucleoside triphosphates used during DNA synthesis is that:
12345 [234]

Answer:

The correct answer is <em>d. The nucleoside triphosphates have the sugar deoxyribose; ATP has the sugar ribose.</em>

Explanation:

The nucleoside triphosphates are components of DNA (deoxyribonucleic acid) so they are composed by a nitrogenous base (adenine, guanine, thymine or cytosine) and a deoxyribose sugar. In contraposition, ATP (adenosine triphosphate) is composed by the nitrogenous base adenine and a ribose sugar along with three phosphates groups. Unlike ribose, deoxyribose is a 5-carbon sugar which lack of an oxygen atom in C2 position.

4 0
3 years ago
The half life for the decay of carbon-14 is 5.73 times 10^3 years.
sergeinik [125]

Answer:

790 years

Explanation:

Given that;

0.693/t1/2 = 2.303/t log [A]o/[A]

So;

t1/2 =half life of carbon-14

t= age of the sample

[A]o= activity of the living sampoke

[A] = activity at time t

0.693/5.73 ×10^3 = 2.303/t log 85/77

1.21 × 10^-4 = 2.303/t log 1.1

1.21 × 10^-4 = 0.0953/t

t= 0.0953/1.21 × 10^-4

t= 790 years (to 2sf)

5 0
3 years ago
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