Answer:
Because of its high electronegativity.
Explanation:
Fluorine has ability to pull the electron from the lithium because of its high electronegativity.
We know that as we move from left to right in periodic table the number of valance electrons in an atom increase. The atomic size tend to decrease in same period of periodic table because the electrons are added with in the same shell. When the electron are added, at the same time protons are also added in the nucleus. The positive charge is going to increase and this charge is greater in effect than the charge of electrons. This effect lead to the greater nuclear attraction. The electrons are pull towards the nucleus and valance shell get closer to the nucleus. As a result of this greater nuclear attraction atomic radius decreases and electronegativity increases. AS lithium is present on left side of period 2 and fluorine is present on right side of same period. Fluorine is more electronegative while lithium is more electropositive thus fluorine pull the electron from lithium when they combine and form anion while lithium loses its valence electrons and form cation.
please answer this for me (8)
Answer:
A
Explanation:
Water is polar. What types of bonds does this allow water to make with other water molecules?
Answer:
Covalent bonds.
Explanation:
Water forms polar, covalent bonds with other molecules because of the uneven electron charge.
Are ecosystems at the edge of forests more likely to stay healthy, or ecosystems in the interior of forests? Explain your choice.
Answer:
Interior because it is harder for humans to get machinery inside to chop down trees or harvest natural resources. They must start destroying from the edge inwards.
Explanation:
Answer:
The ecosystem in the interior of forests stay healthy.
Explanation:
Ecosystem at the edge of the forests are exposed to many things that can affect it and ecosystem in the forests are untouchable and are exposed to things that naturally occurring.
A large bar of solid gold is melted into liquid. The liquid is then poured into
molds to make a number of gold coins. Was this a chemical or physical
change? Explain.
Chemical, because the gold turned into something new and is no longer gold.
Physical, because the gold changed size and shape, but is still gold.
Answer:
It is physical, the gold is still gold and there has not been any chemical change. Melting, boiling, freezing, etc. are physical changes.
In 2019, what was the total income for all agriculture commodities?
Answer: Cash receipts for all commodities are forecast to decrease $12.3 billion (3.3 percent) to $358.3 billion (in nominal terms) in 2020. Total animal/ ...
Explanation:
I’m not sure what the answer is.
Answer:
The answer is A
Explanation:
Can anyone help please
Answer:
Although secreted by the pancreas, glucagon directly impacts the liver as it works to control blood sugar levels. Specifically, glucagon prevents blood glucose levels from dropping to a dangerous point by stimulating the conversion of stored glycogen to glucose in the liver.
Explanation:
:) (i'm not supposed to tell you the answer but i can help you)
please help (5 stars nocap)3
Answer:
C) Chloroplasts
Explanation:
Chloroplasts are the organelle of photosynthesis. They capture light energy from the sun and use it with water and carbon dioxide to make food (sugar) for the plant.
Hope this helps :)
Answer:
c
Explanation:
There are various types of plant cells which include: parenchyma cells, sclerenchyma cells, collenchyma cells, xylem cells, and phloem cells. Parenchyma cells are the major cells of plants.
hope it helps
If you are on the top a mountain and drop an apple, it
will fall to the ground, even though the apple is
gravitationally attracted to you. Why?
a)Earth is larger and has a much stronger
gravitational pull
b) Apples always fall down
C) Centrifugal forces pull the apple to the Earth
and that is stronger than your gravitational pull
d) None of these
What does a food chain show the flow of between living things?
water
carbondioxide
oxygen
energy
Answer:
energy
Explanation:
cuz i did science
Need help quiz is here and this is the only answer I don’t know
Answer:
activation energy is the answer
2 dogs reproduce, 2 sex cells join together & form offspring. The resulting offspring is likely/
) A. Identical to parents
B. Both have traits from each parent.
C. to express only recessive traits
Answer:
B
They have traits of both parents some of which could be dominant.
The resulting offspring will have traits from each parent. The correct option is B.
What is genetic variation?The difference in DNA between individuals or between populations is referred to as genetic variation.
Mutation and genetic recombination are two of the many sources of genetic variation. Although mutations are the ultimate source of genetic variation, other mechanisms such as genetic drift also contribute to it.
Heredity, also known as inheritance or biological inheritance, is the transmission of traits from one generation to the next.
Each of your parents has two copies of each of their genes, and each parent passes on only one copy to you.
Many of your characteristics, such as hair and skin color, are determined by genes that are passed down to you.
Thus, the correct option is B.
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What causes cells to become specialized??? ✨
Answer:
Cell differentiation is how generic embryonic cells become specialized cells. This occurs through a process called gene expression. Gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a cell functions.
Explanation:
Hope that helped if it did please give me brainiest Thanks :3 <333333
9. The phases of the moon are the regular changes in how the moon looks from Earth. In which phase is the moon completely visible from Earth?
Group of answer choices
A. Full moon
B. New moon
C. Waxing gibbous
D. Waning crescent
Answer:
A, full moon
hope this helps ;)
In the full moon phase, the moon is completely visible from the Earth. Therefore, the correct option is A.
What are the phases of the moon?The phases of the moon results from the changing position of the moon relative to the Sun and the Earth.
There are 8 phases of the moon:
1.) New moon-The moon is between the sun and the earth, with its illuminated side facing away from us.
2.) Waxing crescent-The moon is partially illuminated increasing in size, appearing as a crescent shape.
3.) First quarter-The moon is 90 degree east of the sun and appears as a half moon shape.
4.) Waxing Gibbous-The moon appears as gibbous shape.
5.) Full moon-The moon is on the opposite side of the earth from the sun, and its entire illuminated side is visible.
6.) Waning gibbous-The moon is partially illuminated and decreasing, appearing as a gibbous shape.
7.) Third quarter-The moon is 90 degree west of the sun and appears as a half moon shape.
8.) Waning crescent-The moon is partially illuminated and decreasing, appearing as a crescent shape.
The cycle of phases repeats approximately every 29.5 days, from new moon to new moon. Therefore, the correct option is A.
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Two heterozygous tail pea plants with the same genotype, Tt, are crossed. What is the probability that the offspring of this cross will have a heterozygous genotype?
A. 50%
B. 25%
C. 100%
D. 75%
Fill in the blank.
Most earthquakes take place along tectonic plate _____________.
Answer:
Most earthquakes take place along tectonic plate edges and along faults.
Why is salt water dangerous to someone who has been a long time without food or water?
Well salt water can make a person become more thirsty and cause their kidney to be unable to get rid of the salt that comes from seawater. The body can normally gets rid of the excess salt by having the kidneys produce urine, but it needs freshwater to dilute the salt in your body for the kidneys to work properly.
el nino affects the weather worldwide.
1 True
2 False
How do we detect the cosmic microwave background radiation?
A. by looking for a glow in the night sky
B. by looking for radiation at the blue end of the spectrum
C. through magnifying glasses
D.through radio telescopes
Answer:
D. Through radio telescopes
Explanation:
The way we are able to detect them is by radio telescopes
How are DNA tests useful to solve a more mystery? Explain in your own words.
Explanation:
forensic scientists can compare DNA found at the crime scene from blood or hair to DNA samples taken from suspects if there is no match they may be able to rule out that suspect. if there is a match police would likely want to take a closer look.
. An astronaut weighs 120 Newton’s on the moon, where the strength of gravity is 1.6 N/Kg. What is her
mass in Kg?
Answer:
75 kg
Explanation:
answer is above
2. How long would it take for a car to travel a distance of 275 km if it is traveling at a velocity of 55
km/hr?
Answer:
5 hours
Explanation:
275 divided by 55 = 5
what is the process of transferring sea water to fresh water?
Answer:
Desalination
Explanation:
desalination is a technique where the excess salt are removed from salt water or brackish water.
2. Cell division by mitosis produces:
A. Two cells identical to each other but not to the parent cell
B. Two cells identical to each other and to the parent cell
C. Two cells with half the amount of DNA as the parent cell
D. Two cells with twice the amount of DNA as the parent cell
Please hurry !!
Answer:
D
Explanation:
I think that is tha Fact
please help asap i will mark brainliest
Answer:
I would say the 3rd one because itakes the most sence
Answer:c because the compound has formed through 2 gases that made up a liquid the oxygen has bigger in size and is more abundant in mass while hydrogen is smaller but more abundant in numbers
Explanation:
Assignment: 03.01 Seasons of Change
Answer:
What's the question? There's no specific question there
Describe at least 3 areas of carbon storage in the carbon cycle and how the carbon moves between these sinks
Which of the following characteristics of Figure 1 best shows that the fragment is RNA and not DNA?
A
The 5' to 3' orientation of the nucleotide chain
B
The identity of each nitrogenous base
С
The charges on the phosphate groups
D
The type of bond linking the nucleotides together
Answer: I’m pretty sure it’s B
Explanation:
there is a uracil nitrogenous base in it and only rna has uracil whereas dna has thymine
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The region of the earth where ecosystems interact
How is IGCSE CEntre?
Answer:
so good place
Explanation:
Answer:
yepp it is a good place !!