Answer:
poszukaj w necie , proszę a nie prosisz innych o gotowca
Answer:
Atoms bonds with 8 electrons
Explanation:
Octet rule is a chemical rule that shows elements in main group bond so that each atom have 8 valence electrons in the outmost shell which make them to have similar electronic configuration with Noble gases This is important because the sharing of electrons make atoms to have full shell. Atoms with electrons not up to 8 react with more stable compound.
Answer:
The average yearly rate of change of carbon-14 during the first 5000 years = 0.0004538 grams per year
Explanation:
Given that the mass of the carbon 14 at the start = 5 gram
At the end of 5,000 years we will have;
Where
A = The amount of carbon 14 left
A₀ = The starting amount of carbon 14
e = Constant = 2.71828
= The half life
t = The time elapsed = 5000 years
λ = 0.693/ = 0.693/5730 = 0.0001209424
Therefore;
A = 5 × e^(-0.0001209424×5000) = 2.7312 grams
Therefore, the amount of carbon 14 decayed in the 5000 years is the difference in mass between the starting amount and the amount left
The amount of carbon 14 decayed = 5 - 2.7312 = 2.2688 grams
The average yearly rate of change of carbon-14 during the first 5000 years is therefore;
2.2688 grams/(5000 years) = 0.0004538 grams per year
The average yearly rate of change of carbon-14 during the first 5000 years = 0.0004538 grams per year.
<h2>Answer:</h2>
The correct answer is option A which is hybridization occurs in plants more often than in animals.
<h3>Explanation:</h3>
- Hybridization means mixing of different things.
- In the context of biology, hybridization means the mixing of genetic material of the two dissimilar species. The resulting offspring is known as the hybrid.
- In the case of animals, they are usually infertile as a mule, a hybrid of donkey and horse.
- Hybridization always involves interspecies mating. And sometimes the natural selection is in favor of hybridization.
- In plants, it is very common which is also known as crossbreeding and different types of plants and fruits are produced by this method.
- Hence the correct option is A.
