Answer:
65536 cells
Explanation:
starting from 1 cell at zero minutes there will be 1 (2^0) cell; 2^0 = 1
after 15 minutes there will be 2 (2^1) cells
after another 15 minutes ( 30 min) there will be 4 ( 2²) cells
after another 15 minutes ( 45 min) there will be 8 (2³) cells
after n number of 15 minutes there will be (2^n) cells
calculate number of 15 minutes in 4 hours
4 hours = 4 × 60 minutes
number ( n) of 15 minutes in 4 hours = (4 × 60 minutes) / 15 minute = 16
using the formula above and substitute 16 for n in the formula
Number of cells = 2 ^n = 2^16 = 65536 cells
Answer:
Sodium and lithium are in the same group of the periodic table; this is because they both have the same number of electrons in their outer shell (1 as indicted by the group number). this commonality is the reason they have similar chemical properties. As we go down the group however, the electronic structure of atoms of an element changes as that there are a increasing numbers of ‘shells’.
Electron ‘shells’ are filled according to ruled of quantum mechanics however to simplify things in this case the first shell can fit 2 electron, the second 8, and the third shell 8. Lithium has 3 electrons, hence it the first shell is filled, and 1 electron occupies the second shell. Whilst Sodium has 11 electrons, hence its first two shells are filled and the third shell is occupied by one electron.
To expand on this question, the duet/octet rule is a rule in quantum mechanics that observes that main group elements tend to be stable with a full outer shell.
This explains why sodium and lithium is found in the form of Li+ and Na+ ions in nature.
Explanation:
Answer:
A solar eclipse occurs when moon, sun and earth aligned and such alignment coincides at a new moon. In this alignment moon is in the between sun and earth which causes shadow over the earth.
A partial solar eclipse occur when moon, sun and earth is not exactly aligned.
Explanation:
A solar eclipse occurs when moon, sun and earth aligned and such alignment coincides at a new moon. In this alignment moon is in the between sun and earth which causes shadow over the earth.
A partial solar eclipse occur when moon, sun and earth is not exactly aligned.
Because earth is round some parts of the world can observe complete solar eclipse while some parts of the world can observe partial solar eclipse and some parts of the world simply does not observe any solar eclipse because they are having a night during that time.
Answer:I think the answer is “ DNA contains the instructions used to make proteins.”
Explanation:
The types of amino acid r groups will line the channel protein interior would be non-polar.
On the interior side of the system, there are non-polar amino acids that can form bonds with the hydrophobic tails of phospholipids inside cell membrane structures. By using the phenomenon of passive diffusion, they perform the fundamental task of moving materials across the membrane. The amino acid glycine contains an R group, as is the case. Valine, methionine, and alanine are a few of the non-polar amino acids, as are others.
Amino groups are more prevalent than carboxylic groups in polar amino acids with a positive charge. A more basic amino acid then results. On the "R" group of these amino acids, there is a positive charge. Lysine, arginine, and histidine are some examples of compounds that fall under this category.
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