Answers
Answer:
D. The neutral atom Cl gains 1 electron.
Explanation:
Ionic bond:
It is the bond which is formed by the transfer of electron from one atom to the atom of another element.
Both bonded atoms have very large electronegativity difference. The atom with large electronegativity value accept the electron from other with smaller value of electronegativity.
For example:
Barium chloride is ionic compound. The electronegativity of chlorine is 3.16 and for sodium is 0.89. There is large difference is present. That's why two valence electron from barium is transfer to the chlorine. Barium becomes positive and chlorine becomes negative ion. Both atoms are bonded together electrostatic attraction occur between anion and cations. There are two valence electron lost by barium while chlorine required one electron to complete the octet thus two chlorine atoms are bonded with one barium atom. Each atom of chlorine carry -1 charge while one barium atom have +2 charge.
Related Questions
A student squeezes a clothespin as rapidly as possible for one minute. Without stopping to rest, the student continues to squeeze the clothespin for a second minute. At the end of the second minute, the student’s fingers and hand feel very cramped and tired. The physical tiredness and cramping in the muscles in the student’s hand were most likely due to the increased production of
oxygen
ATP
Waste products
glucose
Answers
Answer: Waste products
Explanation:
A solid is held in shape by strong ___________ forces.
A.intermolecular
B.magnetic
Answers
A solid is held in shape by strong intermolecular forces. Therefore, the correct option is (A).
A solid is held in shape by strong intermolecular forces (option A). Intermolecular forces are attractive forces that exist between molecules, or in the case of solids, between the constituent particles such as atoms, ions, or molecules themselves. These forces play a crucial role in determining the physical properties of solids, including their shape and stability.In a solid, the intermolecular forces are stronger compared to those in liquids or gases. These forces can be ionic, covalent, metallic, or even weaker van der Waals forces. The strength of the intermolecular forces determines the rigidity and structural integrity of the solid.These forces hold the particles in their fixed positions, allowing the solid to maintain a definite shape and resist deformation. It is the interplay of intermolecular forces that gives solids their characteristic properties such as hardness, brittleness, and melting point. Magnetic forces (option B), on the other hand, are specific to materials that exhibit magnetic properties and are not generally responsible for holding solids together.For more such questions on Solid:
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Which is the best way to describe the biodiversity of an area?
A grassland has organisms that live on hundreds of acres of land.
A desert has 10 species of animals that can survive dry conditions.
A rainforest has fertile soil that supports many kinds of plants.
A pond has 12 species of organisms, including 300 animals and 40 plants
Answers
Answer:
The answer is D
Explanation:
Which of the following statements correctly describes a difference between plant cells and animal cells?
2 points
A. Plant cells have an envelope surrounding the nucleus. Animal cells do not.
B. Animal cells contain mitochondria. Plant cells do not.
C. Animal cells contain chloroplasts. Plant cells do not.
D. Plant cells are surrounded by a cell wall. Animal cells are not.
Answers
Answer:
D
Explanation:
plant cells are the only kind of cell to have cell walls
The statement 'plant cells are surrounded by a cell wall, while animal cells are not' correctly describes the difference between plant cells and animal cells (Option D).
Both plants and animals are eukaryotic organisms, which means that their cells have nuclei and contain membrane-bound organelles.Plant cells contain an organelle known as chloroplast, which is used by these organisms during photosynthesis. Moreover, the plasma membrane of plant cells is surrounded by a cell wall that provides structural support to their cells.In conclusion, the statement 'plant cells are surrounded by a cell wall, while animal cells are not' correctly describes the difference between plant cells and animal cells (Option D).
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In a garden plot, you count 50 tall plants and 50 short plants. All the plants are offspring of the same two parent plants. What is the ratio of tall to short plants?
Answers
Answer:
50 to 50
Explanation:
Let me know if it’s right
The ratio of tall to short plants is 1:1 or 50 tall plants to 50 short plants. The ratio is expressed as 1:1 because the number of tall plants and short plants are equal.
What is phenotype?Phenotype refers to the observable physical and behavioral characteristics of an organism, which are determined by the interaction between its genetic makeup (genotype) and the environment. The phenotype can include traits such as height, eye color, body shape, and even personality traits.
These characteristics are influenced by both genetic and environmental factors, such as exposure to sunlight, diet, and other environmental conditions. In many cases, a single gene may have multiple effects on the phenotype, and many genes may work together to produce a single trait. Phenotypic traits can also be influenced by epigenetic changes, which involve alterations in gene expression without changes to the underlying DNA sequence. Understanding the relationship between phenotype and genotype is crucial for fields such as medicine, agriculture, and genetics.
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13) Atoms bond with other atoms when they need to fill their shell
Answers
Atoms bond with other atoms when they need to fill their shell is true .
What is atom ?When two atoms share a pair of electrons, covalent bonding results. In order to increase their stability, which is attained by forming a complete electron shell, atoms will covalently connect with one another. Atoms can stabilize themselves by filling up their outer electron shell by sharing their outermost (valence) electrons.
Atoms, which are very little particles of matter, are what define a chemical element specifically. The core nucleus of an atom is surrounded by one or more negatively charged electrons.
ATOM BOND :Whatever atoms the shared electrons originally belonged to or how many electrons are involved, a bond is simply the sharing of electrons between two or more atoms to satisfy their demand for an unoccupied final shell.
Hence, your statement about atom is True .
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It is a hot, summer day, and a thunderstorm is possible. Which types of precipitation are most likely to occur?
Answers
Answer:
d rain and sleet
Explanation:
Answer: Rain and Sleet, I took the test :)
In a chemical reaction, 1,3-bisphosphoglycerate ADP yields 3-phosphoglycerate plus ATP. What is the delta G for this reaction
Answers
Answer:
The reactants have more free energy than the products. In a chemical reaction, 1,3-bisphosphoglycerate + ADP yields 3-phosphoglycerate plus ATP. ... If the delta G of a reaction was -31.45 kJoules, you would know that: The reaction is spontaneous.
Explanation:
The reactants have more free energy than the products. In a chemical reaction, 1,3-bisphosphoglycerate + ADP yields 3-phosphoglycerate plus ATP. ... If the delta G of a reaction was -31.45 kJoules, you would know that: The reaction is spontaneous.
What surface of the body are the eyes located on in this MRI scan?
Answers
Answer:
infronter part of brain
Explanation:
Which of the following organisms are most important in biodegradation
Answers
Answer:
2.1.
In the environmental context, generally microorganisms are the most important agents of biodegradation. Although extensive degradation of some xenobiotic chemicals can occur in mammals (usually in the liver), they are not particularly important in degradation of environmental pollutants.
Explanation:
pls i’m getting timed :(
Answers
Answer:
i think conversion of mass
Explanation:
Scientific question – Yes or No? ARE THE QUESTIONS BELLOW SCEINTIFIC PLEASE TYPE YES BESIDE THEM IF THEY ARE SCEINTIFIC AND PLEASE SPECIFY THE OTHERS THAT ARE NOT SCEINTIFIC QUESTIONS AND TYPE BESIDE THEM NO THANK YOU
What is the effect of cigarette smoke on lungs?
Why is blue the best color in the world?
Did the grass turn brown because it needs fertilizer?
What is the effect of ‘study-time’ on test grades?
Why is basketball a boring sport?
Are cows faster than pigs?
Answers
Answer:
What is the effect of cigarette smoke on lungs? yes
Why is blue the best color in the world?
no
Did the grass turn brown because it needs fertilizer
yes
What is the effect of ‘study-time’ on test grades
no
Why is basketball a boring sport?
no
Are cows faster than pigs?
no
Describe Patterns Explain in your own words how sharks have changed throughout
their evolutionary history and suggest some reasons why these changes may have
occurred. Think about the shark species you saw in this lab and how they differ and how
they are the same.
Answers
Answer:
HOPE IT HELPS
Explanation:
Sharks have been around for over 400 million years, and throughout their evolutionary history, they have undergone a variety of changes. Some of these changes include the development of more streamlined bodies, the evolution of different teeth shapes and sizes, and the development of more efficient swimming techniques. These changes may have occurred due to a variety of factors, such as changes in the environment, changes in food sources, and competition with other species.
For example, the shark species I saw in this lab, the Great White Shark, has a unique set of adaptations that allow it to be an efficient predator. Its streamlined body and powerful tail allow it to swim quickly and efficiently through the water, while its sharp teeth and keen senses help it to locate and capture prey. Other shark species, such as the Hammerhead Shark, have evolved unique head shapes that help them to detect and capture prey in different ways. These adaptations may have evolved due to differences in food sources or competition with other species. Overall, the evolutionary history of sharks is complex and fascinating, and studying these patterns can help us to better understand how species adapt and evolve over time.
Sharks have undergone significant changes throughout their evolutionary history. Over millions of years, they have adapted and diversified to occupy various ecological niches in the marine environment. These changes can be observed in their anatomical features, reproductive strategies, and feeding habits.
One reason for the changes in sharks' evolutionary history is the need to exploit different food sources and habitats. Sharks have evolved different teeth shapes and jaw structures to suit their preferred prey, ranging from small fish to large marine mammals.
Additionally, changes in body shape and fin structure have enabled them to be efficient swimmers in different environments, such as open ocean or shallow coastal waters.
Another reason for evolutionary changes in sharks is competition and predation pressure. As new species emerge and ecosystems evolve, sharks have had to adapt to survive and thrive in changing conditions. Natural selection favors individuals with advantageous traits, leading to the emergence of new species and the extinction of less adapted ones.
In the lab, different shark species may exhibit variations in size, coloration, fin shape, and behavior. These differences reflect their evolutionary adaptations to specific environments and ecological roles.
Despite these variations, all shark species share common ancestry and basic characteristics such as cartilaginous skeletons, powerful jaws, and an efficient swimming ability, which have been refined over millions of years of evolution.
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The state of a medium helps determine the speed of sound passing through medium
Answers
True. The speed at which sound travels through a medium is determined by the properties of that medium.
What do you mean by sound?
Sound is a type of energy made by vibrations that travel through the air or another medium, like water. It is sensed by our ears and interpreted by our brains. Sound is made up of waves that have different frequencies, which determine the pitch and loudness of a sound.
Factors such as temperature, pressure, composition, and density can all affect the speed of sound in the medium. For example, sound travels faster through warmer air than through colder air, and faster through denser materials than through less dense materials.
Hence, the statement is True.
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Complete question:
The state of a medium helps determine the speed of sound passing through medium.
State True or False.
How would an air mass that formed over the north pole differ from an air mass that formed over a warm
ocean?
Answers
An air mass that formed over the North Pole would differ from an air mass that formed over a warm ocean in several ways.
Air masses are large bodies of air with similar characteristics that form over a specific region of the Earth's surface and can travel long distances before encountering a different air mass that alters its characteristics. The characteristics of an air mass depend on the region over which it forms.
The air mass that forms over the North Pole would be cold and dry due to the absence of sunlight and the Arctic's high latitudes. Arctic air masses are characterized by a high pressure system that circulates air clockwise. This rotation traps cold air over the region and prevents it from mixing with the surrounding air masses.
The air mass that forms over a warm ocean would be warm and moist. The ocean surface warms the air above it, and the air acquires moisture through evaporation. The warm air then rises, causing low-pressure areas over the ocean and pulling in moisture-laden air from surrounding regions. This moist air mass travels over land, and its temperature decreases, causing it to lose its moisture content and form precipitation.
The moisture content in this air mass would be high, causing it to be humid. Air masses interact with each other and cause changes in weather patterns and climate. They also play a vital role in the Earth's energy balance and regulate temperature and precipitation patterns.
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We have come to know that the primary component of the plasma membrane is the phospholipid. What makes these molecules so unique and the perfect building block for a bilayer is ...
Group of answer choices
a phospholipid has both polar and nonpolar regions
a phospholipid is able to firmly attach to the neighboring phospholipid
all choices are correct
a phospholipid is both positively and negatively charged
Answers
How much does the giant horse conch weigh?
Answers
Answer:
The giant horse conch can weigh up to eleven pounds.
Answer:
eleven pounds
I hope this helps
God bless
is methemoglobinemia sex- linked or autosomal (non-sex linked)?Give evidence to support your answer?
Answers
To answer this question, we have to consider that a sex-linked trait (in this case, disease) is a condition related to an allele of the sexual X chromosome. In females, we know that the inherited sexual chromosomes are XX, while in males, the inherited sexual chromosomes are XY. This leads to consider that for a given disease to be expressed in an individual, it depends on if they are male or female.
For example, if a male inherits an allele that carries the trait for the diseases, usually a recessive allele found in the X chromosome, in all cases they would express the disease. But if a female inherits only one allele for that trait, since they inherit two X chromosomes, they would not express the disease.
Considering this, if methemoglobinemia is expressed in one parent, for example, the male parent, and not in the female, we have then the following:
If the disease was sex-linked, only would be expressed when the parents have a boy, instead of a girl, and if that boy inherits only the allele of the disease, in this case, expressed with a lowercase m.
If the disease was not sex-linked, no matter whether the offspring would be males or females, there would be a rate of 25 % of they of having the disease.
PLEAS HELP 50 POINTS
Which of these is a function of the placenta?
A. To store the embryo's wastes
B. To hold the fetus upside down for birth
C.To digest food for the fetus
D. To bring oxygen to the embryo's cells
Answers
You are a paleontologist working on a dig site in southern
South America and Antarctica. You have uncovered a fossilized animal
that has previously only been found in Australia (not anywhere else, like
Africa). Without need for further dating, what can you estimate about
when this animal probably evolved? (4 pts)
Answers
Australopithecus afarensis is one of the best-known early hominins thanks to an extraordinary skeleton known as Lucy.
What makes Australia distinct from other continents?The Australian continent, which has a total surface area of 8.56 million square kilometers (3,310,000 sq mi), is the world's smallest, lowest, flattest, and second-dryest continent (behind Antarctica).Australia, Antarctica, India, South Africa, and South America are all southern continents where the Glossopteris fossil can be found. As the Glossopteris seed is known to be huge and clumsy, it cannot have flown or drifted over the oceans to another continent.Australia has never yielded any remains of Homo erectus. Evidence suggests that the Denisovans, a second species that was also known to have lived in this area, interbred with modern humans. About 3-5% of the DNA of Melanesians and Aboriginal Australians comes from Denisova.To learn more about Denisova refer to:
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which of the following statement is true of signal molecules
Answers
Where do the reactions for photosynthesis happen in a cell? Why is it important?
Answers
The reactions for photosynthesis happen in the chloroplast of the cell, an organelle that is unique to plant cells.
What is Photosynthesis?Photosynthesis may be defined as the process through which green plants and some algae synthesize their own food (glucose) with the help of carbon dioxide and water in the presence of sunlight.
The light reaction of the photosynthesis occurs in the thylakoid region of the chloroplast, while the dar reaction occurs in the stroma of the chloroplast.
This is important because the needs for both reactions are delivered by different regions. For example, the enzymes of the stroma do not require light but require ATP and NADPH which are already prepared by the light reaction in the thylakoid membrane.
The light reaction uses light energy that produces ATP and NADPH.
Therefore, it is well described above.
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The product of photosynthesis (6,7)
Answers
Answer:
Glucose (aka) sugar
Explanation:
I rember
Hey this is the correct answer
Photosynthesis- is the process by which plants make their foods using sunlight,water,and carbon dioxide. It takes place inside special structure in leaf cells called cloroplasts#robertmontefolka
The symbiotic relationship
between a flower and a bee is...
A. parasitic.
B. mutualism.
C. commesalism.
Answers
When doing experiments with isolated muscles, researchers stretch the muscle to different lengths before stimulating it. Which of these statements is TRUE about what happens to the muscle when they stretch it? Frest increases O The rise time increases O The latent period is shorter. O It enters tetanus at a lower stimulation frequency
Answers
The statements that is TRUE about what happens to the muscle when they stretch it is Frest increases.
When a muscle, one of the four major bodily tissues created in an organism, is stretched to a different length before being stimulated, the frest increases. Frest rises is the right answer, therefore.
Stretching is a type of physical activity when a particular muscle, tendon, or muscle group is purposefully flexed or stretched in order to increase the muscle's perceived suppleness and attain a comfortable level of muscular tone. One experiences improved muscle control, flexibility, and range of motion as a result. Stretching is another therapeutic technique used to treat cramps and enhance daily function by extending range of motion.
Stretching is an action that humans and many other creatures engage in on a natural and instinctual level. Yawning might go along with it. After waking up from sleep, after being inactive for a while, or after leaving confining rooms and surroundings, stretching is frequently a reflex action. Spiders are among the vertebrates, in addition to mammals and birds.
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1. In the 1930s the theory of continental drift was formed.
A. What is the theory of continental drift? (2 points)
B. Who created this theory? (2 points)
C. What are two forms of evidence used to support this theory? (4 points)
Answers
Answer/ Explanation:
A. Continental drift refers to the movement of continents spreading apart from one another, where they once were one large landmass. This landmass was called Pangea.
B. The creator of the theory is Alfred Wegener.
C. The evidence for continental drift included the fit of the continents; the distribution of ancient fossils, rocks, and mountain ranges; and the locations of ancient climatic zones.
HELP PLEASE. What phase is missing from the data table above? What is a possible reason
that the students chose NOT to consider that phase in their experiment? [2pt]
Answers
The phase of mitosis that is missing from the data table given is prometaphase.
A possible reason that the students chose NOT to consider that phase in their experiment could be that it is not easily distinguishable like the other phases.
What does the term "prometaphase" mean?
The second stage of mitosis, known as prometaphase, occurs when a parent cell's nucleus divides into two identical daughter cells using genetic material that has been copied.
The nuclear envelope, which serves as the nucleus' physical shield, is destroyed during prometaphase.
Additionally, the transition between prophase and prometaphase can be gradual and difficult to distinguish, as the nuclear envelope begins to break down and the spindle fibers start to interact with the chromosomes.
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What happened to us consumption of natural gas
Answers
In recent years, the United States has experienced an increase in its consumption of natural gas.
Factors contributing to this rise include the abundance of domestic natural gas resources, advancements in extraction techniques such as hydraulic fracturing (fracking), and the transition from coal to natural gas in power generation. Natural gas is utilized for a variety of purposes, including residential and commercial heating, electricity generation, industrial processes, and as a feedstock in the petrochemical industry.
The cleaner-burning nature of natural gas compared to coal has also played a role in its increased use as the country aims to reduce greenhouse gas emissions and transition towards cleaner energy sources.
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emmings are small mammals that reproduce quickly. A lemming population often grows so quickly that there is not enough food for all of the lemmings to eat. This results in a decline of the lemming population.
This example best supports the ideas of which scientist?
Answers
In a case whereby Emmings are small mammals that reproduce quickly. A lemming population often grows so quickly .This example best supports the ideas of option A Malthus Principle of Population.
What is Malthus Principle of Population?The Malthusian principle of population, also known as the Malthusian theory of population, was proposed by Thomas Malthus in his 1798 book "An Essay on the Principle of Population."
According to Malthus, population growth is exponential, while the growth of resources is linear. Therefore, if left unchecked, the population will eventually outgrow the available resources, leading to widespread poverty, famine, disease, and ultimately, population decline.
Malthus argued that there are two types of checks that prevent population growth from exceeding available resources: preventive checks, which are actions that people can take to limit population growth, such as postponing marriage or practicing contraception, and positive checks, which are events that limit population growth, such as famine, disease, and war.
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options:
a.Malthus
b.Darwin
Please help me
The ____ system regulates body temperature.
endocrine
excretory
cardiovascular.
Answers
\( \: \huge \mathbb{\underline{ \green{ANSWER}}} \\ \\ \\ \texttt{The { \blue{\underline{\bf{endocrine}}}}} \texttt{ system regulates} \\ \texttt{body temperature}\)