The volume of the element mercury is 0.338 cm³.
We have elemental mercury.
We have to calculate the volume of 4.6 g of elemental mercury.
What is the relation between Mass and Density ?The relation between mass and density are as follows -
M = D x V
D - density of element
M - mass of element
V - volume of element
According to the question -
M = D x V
Rewrite the relation as follows -
V = M / D
Substitute the values -
V = 4.6 / 13.6 = 0.338 cm³.
Hence, the volume of the element mercury is 0.338 cm³.
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The fluid-mosaic model of cell membranes refers to the discovery that membranes are composed
of a bilayer of phospholipids with proteins embedded; both phospholipids and proteins can easily
flip from inside to out (or vice versa), but cannot move laterally in the membrane.
O True
O False
Answer:
False
Explanation:
The fluid mosaic model describes the cell membrane as a tapestry of several types of molecules (phospholipids, cholesterols, and proteins) that are constantly moving.Membrane proteins and phospholipids are unable to move back and forth between the inner and outer leaflets of the membrane at an appreciable rate. However, because they are inserted into a fluid lipid bilayer,both are able to diffuse laterally through the membrane.
Individual phospholipids and proteins can rotate and move laterally within a bilayer.
Hope this helps!
If you are stirring sugar into your morning coffee, why do the sugar grains appear to disappear?
*
1 point
The sugar is transforming into coffee molecules due to dissolving
The coffer and sugar are combining in a chemical reaction to create a new, sweeter coffee
The grains of sugar are being pulled apart by polar molecules in the coffee to create the solution
Desalination is a process by which salt is removed from a salt water solution. This process is done by heating water. Why would heating the water separate the solute and solvent in this case?
*
1 point
The water will evaporate before the salt, thus turning it into a gas and leaving the salt behind
The heat will cause the particles of the solution to move so fast that they shake themselves apart
The water and salt will undergo a chemical change from the added heat. One of the indicators of chemical change is a change in color, so you will be able to see which is water and which is salt and separate them
Heating salt water will separate the solvent from the solute because the water will evaporate before the salt, thus turning it into gas and leaving the salt behind.
What is evaporation?Evaporation is a process whereby molecules of liquids gain energy and change to gas.
In chemistry, evaporation can be used to separate a mixture containing water and salt. This is because water boils and evaporates before salt.
Since water forms the solvent that dissolved the salt, once it evaporates off the mixture, what is left behind would be the solute, the salt.
Before the molecules of the salt can think of evaporating, they will first have to become a liquid - melt. After melting, the liquid molecules can then gain energy to evaporate.
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True or false: If you take a thermal energy source and combine them with inorganic
molecules, you can create protein structures. Explain.
yes we can combine the thermal energy sources with inorganic molecules and we can also make a structures.
The thermal energy also called heat energy which are produces from the following sources such as combustion, burning of fossil fuels and microwaves etc.along with heat energy but few gases are also released which we can used for our own purpose.In case of inorganic molecules or compound are those which does not include carbon sources but other molecules like Sulphur , nitrogen etc.For the formation of any compound we need energy either to break the bond or to formed the new bond. For example to formed the diamond we burnt the coal at very high temperature and large amount of heat is supplied.Therefore, the energy and molecules can combine together to formed the biomolecular structure or any other molecular structure.
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Can you make a sentence with the words cell, microorganism, nanometer, microscopic, micrometer, and molecule?
A micro-organism is made up of molecules called cells which can be seen through microscopic techniques with diameter ranging from 0.1-100 micrometer and a DNA of 2.2-2.6 nanometers.
What is a Cell?A cell is the fundamental unit of life. Every living organism is made up of cell.
A cell has three main parts i.e., the cell membrane, the nucleus and the cytoplasm. The cell membrane is the outer-covering of the cell. Nucleus is the organelle which contains important genetic information in the form of nucleic acids- DNA or RNA. Cytoplasm is the fluid fills the cell. All the organelles are suspended in cytoplasm.
Therefore, Cell is the smallest unit that can survive independently.
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A scientist is designing an investigation to find out what is the amount of light that a plant receives is related to how much food the plant has to help it grow. For her experiment, the scientist plans to get one plant only one hour of light per day another plant five hours of light per day and a third plant 10 hours of light per day. Then she will use a roller to measure how much each plant grows each day. The set up for her experiment is shown below. Which of the following will help make sure that the investigation is a fear test?
a. Use the three different types of lightbulbs.
b. Give the plants with less light more fertilizer.
c. Give each plant the same amount of fertilizer.
d. Use three different types of plants.
Answer:
c
Explanation:
two find the effect of a variable ,which is light in this experiment, all the other conditions should be fixed
Why is melted ice cream an example of a physical change? A. Changing from solid to liquid has not kept the molecules and atoms intact, which means the matter has changed. B. Once ice cream changes from a solid to a liquid, the matter has changed cannot be returned to its solid form. C. Even though the form has changed from solid to liquid, the matter has not changed. D. The form has changed from solid to liquid, and the atoms from two kinds of matter have made a completely different substance.
The color of the fur is the
.The genetic combination of alleles that determine the fur color is called the
.
7) You want to test which size of soccer ball is easiest to juggle with your feet. You test a size 3, size 4 and a size 5 ball. You have someone time how long the ball stays in the air for each of the trials. You test each size ball a total of ten times, and average the time for each.
What is the dependent variable?
What is the independent variable?
What is the controlled variable(s)?
Example of the nucleus acid include
Answer:
Explanation:
Two examples of nucleic acids include deoxyribonucleic acid (better known as DNA) and ribonucleic acid (better known as RNA). These molecules are composed of long strands of nucleotides held together by covalent bonds
Which area of the ocean, as described above, best fits the definition of a commons?
The area of the ocean, as described above, that best fits the definition of a commons is The high seas
This is because the part of the oceans that lie beyond coastal states' 200-mile exclusive economic zones—is a commons and this is an area that is known as the high seas.
With this in mind, an ocean which is a body of salt water that is found in huge basins on Earth's surface and the commons that can be found there is the high seas.
What is a Commons?This refers to the cultural and natural resources that people in a community have access to and these can include natural materials that are used by all such as air, water, etc.
Hence, we can see that The area of the ocean, as described above, that best fits the definition of a commons is The high seas
This is because the part of the oceans that lie beyond coastal states' 200-mile exclusive economic zones—is a commons and this is an area that is known as the high seas.
With this in mind, an ocean which is a body of salt water that is found in huge basins on Earth's surface and the commons that can be found there is the high seas.
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which of the following structures in a human cell contains the cells genetic information
Answer:
The NUCLEUS contains chromosomes, the thread-like structures made of deoxyribonucleic acid, which are the structures that contain the body's genetic information.
what infomation does DNA provide to all of the cells organelles?
It gives information to every cell organelle to perform its own functions.
The DNA is called deoxyribonucleic acid and is the hereditary material in organisms and is responsible for all the characteristics and traits represented by an organism DNA is very important as it brings variation and also evolution the generations which also increases the rate of survival and also the desirable and improved characters and also it leads to natural selection and the survival of the fittest and DNA also helps in providing information to the cell organelles like every cell organelle has their own function and DNA is present in the nucleus which is called as the brain of the cell and this provides the information to every cell organelle that when they need to work and what they need to work for example the Golgi apparatus has the work to pack the material and transport it from one place to another in the body or ribosomes to make proteins or to some they give information to phagocyte itself whenever a foreign agent enters the body so that they doesn't harm the immune system of the body and the DNA is also present in mitochondria and cholroplast so they also can function as semi autonomous body and they also direct to their function because of DNA to perform the powerhouse of cell and generating ATP.
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HOW MUCH OCEAN?
Predict what percentage of the earth's surface is covered with water.
% (0%-100%)
To find out how close your prediction is, count the number of squares of land and water down each column. Add the numbers across in the
land row, divide by the total number of squares in the whole map, and then multiply by 100. Do the same for the water row.
Land
Water
Total number of squares in map:
(squares in a column)
x (squares in a row)
pers
(total squares).
TO
Land
Water
To
22
P
Ratio
(of sq/total # of sq)
☆
Decimal
Totals
Percent
(decimal x 100)
Which of these characteristics would disqualify a newly discovered biological structure from being called a cell?
A. It cannot exchange materials with its environment.
B.
It does not contain membrane-bound organelles.
C. It lacks a method for moving and gathering food.
D. It has no stiff outer layer for support and protection.
The characteristics that would disqualify a newly discovered biological structure from being called a cell is the lack of a stiff outer layer for support and protection (option D).
What is a cell?A cell is the basic unit of a living organism, consisting of a quantity of protoplasm surrounded by a cell membrane, which is able to synthesize proteins and replicate itself.
One major feature of every cell is the possession of a membrane that surrounds the cell, which is called cell/plasma membrane.
According to this question, the characteristics that would disqualify a newly discovered biological structure from being called a cell is the lack of a stiff outer layer for support and protection.
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The simplest type of a substance is a compound true or false
Answer:
True
Explanation:
Elements and compounds are examples of pure substances. The simplest units of elements and compounds are atoms and molecules. We find that these pure substances only contain one type of particle.
If there is a pollution plume on one side of an aquifer, and someone pumps water from the opposite side of the aquifer, do you think the pollution plume will move towards the pump, away from it, or stay in the same place?
The pollution plume will move towards the pump when someone pumps water from the opposite side of the aquifer when there is a pollution plume on one side of an aquifer.
What is a plume in the environment?A column of liquid, gas, or dust traveling through another is referred to as a plume. In general, we refer to things like smoke flowing from a chimney or steam issuing from a smokestack at a power plant as plumes. A plume could also be a snowflake or a raindrop.
As water flows through and down to an aquifer, certain pollutants are filtered by rock and soil. From the source, a plume of contaminants moves outward through the aquifer in the direction the water is flowing.
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how many grams of calcium chloride would you add to water for a total volume of 500ml to make 5% solution
25gm of calcium chloride(CaCl2) added to water for a total volume of 500ml to make 5% solution
You must prepare a 5% calcium chloride (CaCl2) solution in order to answer this question. There should be 1000 grams of weight for every 1000 ml of water. The required CaCl2 for a 5% solution would then be:
5% * 500 ml * 1 g/ml = 25 g
Since 1 calcium and 2 chlorine combine to form calcium chloride, the molecular mass is calculated as (1*40) + (2*35.5) = 111 gram/moles. In such case, 25 grams of CaCl2 would be equal to 25/111 moles when divided by 111 grams.
The mole per 1000 ml of solvent is the molarity unit. Accordingly, the solution's molarity would be as follows: (25/111 moles) / (500ml/1000ml)= 50/111M= 0.45M
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Arjulia soaked six different kinds of seeds in water for 24 hours. Then she planted the seeds in soil at a depth of 1 cm. She used the same amount of water, light, and heat for each kind of seed.
Answer:
a
Explanation:
The following map was created using modern technology to determine the overall temperature of the oceans. what can be concluded about the relationship between temperature and salinity from the map?
Public Domain
O Salinity is lower in areas that have decreased precipitation
O There isn't a correlation between temperature and salinity
O Lower temperatures cause an increase in evaporation, which affects salinity
O Higher temperatures cause an increase in evaporation, which affects salinity
Answer:
It could relate to a salinity map because when the temperature rises so does the salinity. With this map it is more warmer in the middle of the oceans, and towards the outer parts of the oceans it is more colder.
Explanation:
Answer:
It's D
Explanation:
Higher temperatures cause an increase in evaporation, which affects salinity
Dendrites send information from other dendrites. The cell body _____ that information and sends a signål through the _______ to other dendrites. Then, when the signal is received by other neurons. Then, those neurons ______
A neuron's (nerve cell) dendrites are its outgrowths, which are where it receives signals (information) from other neurons. Electrochemical signals are used to transmit information from one neuron to another.
The portion of a neuron's body that houses the nucleus and regulates cell activity is referred to as the cell body or soma.
The axon, which transmits information to other neurons, and the dendrites, which carry information to the neuron, are connected by the cell body. The dendrites transmit signals to the cell body when a neuron receives information from another neuron. Depending on the signal's strength, the cell body may then deliver the information to the axon.
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under what conditions might a predominantly sandy soil be advantageous for plant growth
The majority of flowering plants benefit from the sandy soil's ability to drain effectively because it is lighter weight, doesn't compact, and generally makes for easier digging and composting than clay soils.
A loose, airy texture that doesn't compact and encourages proper drainage are just a few advantages.Carrots and other root crops grow neatly straight, and the roots of all plants spread out more readily.Sandy soil has a longer growing season because it freezes later in the winter and warms up more quickly in the spring.Due to the comparatively large particle size in sandy soils, they are less fruitful than other soil types and more likely to dry up.Sandy soils are sometimes thought of as having simple-to-define physical characteristics, such as a lack of structure or a weak structure, poor water retention abilities, high permeability, and high sensitivity to compaction with numerous negative effects.
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Carbon dating is an example of a practical application of
Carbon dating is an example of a practical application of proving or disproving theories.
Carbon dating :Carbon dating is now used to date almost everything that is over 100 years old. It is accepted as fact and used as evidence to learn about the world and past civilizations. Carbon dating, on the other hand, is at best a good theory, and that is all it is. Many people overlook the definition of a theory.
What is carbon dating based on?The basic premise of radiocarbon dating is straightforward: all living things absorb carbon from their surroundings, including a small amount of naturally radioactive carbon-14. When a plant or animal dies, it no longer absorbs, but the radioactive carbon it has accumulated continues to decay.
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witch statement is one of the three parts of cell theory
The three statements that make up the cell theory are as follows:
Cells are the fundamental and basic unit of lifeAll living organisms are made up of one or more cellsAll cells arise from pre-existing cellsWhat is the cell theory?Cell theory is the scientific theory proposed by three scientists that all living organisms are made of cells as the smallest functional unit.
The cell theory was proposed in 1830's by three scientists namely;
Mathias ScleidenTheodor SchwannRudolf VirchowThe components of the widely accepted cell theory are as follows:
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Please give examples of null questions
Each year, volunteers of the local WaVE (Waves are Very Exciting) group hold an annual meeting for new members. This year you have been asked to give the introductory speech at the meeting in which you will explain to members the importance of waves in the world. Your two-paragraph speech should include the following:
• general properties shared by all waves.
• how waves affect matter at the macroscopic and particle levels.
• the difference between the three types of mechanical waves.
The speech should be appropriate for a formal audience, and must include a topic statement, transition phrases, and the science vocabulary from the word bank.
WORD BANK
longitudinal wave
mechanical wave
medium
surface wave
transverse wave
wave
wave cycle
wave pulse
Speech on wave includes:
The pace at which an object's position changes as perceived from a particular point of view and as measured by a particular unit of time (for example, 60 km/h northbound) is defined as its velocity. Velocity is a fundamental concept in kinematics, the branch of classical mechanics that deals with the motion of bodies.In order to be defined, the physical vector quantity known as velocity needs to have both a magnitude and a direction. Speed is a coherent derived unit whose quantity is measured in meters per second (m/s or m/s1) in the SI. Speed is the scalar absolute value (magnitude) of velocity (metric system). "5 meters per second," for example, is a scalar as opposed to "5 meters per second east," which is a vector.
In a macroscopic object, each particle's wave is absorbed and combined with the waves of other particles to create a single wave that serves as a representation of the whole entity. The observation of this object causes the wave function to instantaneously collapse.When you know anything about the world around us, some wave somewhere experiences a collapse.
In other words, if an object can be seen, it does not have a wave function.
Visualize your thing as a long string for the transverse wave. You hold the other end while securing the other end to a tree to exert pressure on the string. Then, when you move the end of the string you are holding up and down, the thread is seen sliding down in the direction of the tree. As a result, the medium (the string) moves perpendicular to or transverse to the direction of motion. In other words, a transverse wave is being created by you!
Compression waves and pressure waves are additional terms for longitudinal waves. When a wave travels through space in a longitudinal direction, the medium also moves in that direction. To further understand this, picture a liquid in a tube with a piston or plunger at one end and a stiff wall at the other. The liquid (the medium) travelling down the tube experiences variations in pressure and displacement when the piston is compressed.
Surface waves cross the gap between two dissimilar media. Examples include seismic waves, which often result from earthquakes, or ocean waves. Because the molecules in the medium spin as a result of surface waves, neither transverse Transverse, which literally means "across," usually refers to a path or plane that is neither longitudinal nor perpendicular to a part's axis. They can be thought of as having both transverse and longitudinal components, though. Surface waves' electromagnetic equivalent, ground waves, is addressed in another section of this book.
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What would happen to homeostasis in the kangaroo rat's body if it was unable to concentrate urine in its kidneys?
What is meant by food insecurity?
The potential decline in agricultural productivity due to reduced soil fertility as a
result of multi-cropping.
The condition in which people live with chronic hunger and malnutrition likely due to
poverty.
The increased pressures on food production as a result of increases in global
population.
The potential decline in agricultural productivity due to conservation tillage.
Which statement best represents how structure relates to function?
When a sandhill crane finds a mate, it bonds for life.
Longer legs and different hip bones let modern humans walk upright
Parrots typically lay clutches of 2-4 eggs per year.
Hummingbird feathers come in a wide variety of iridescent colors.?
Great white sharks have sharp serrated teeth for tearing into their prey. It can last for years until one of the cranes dies. A Hummingbird's feathers are iridescent and reflect light due to the structural make-up of the feather.
Hummingbird feathers are in general black, brown, white, and reddish brown. The mirrored image of mild off their unique feathers gives an iridescence and brilliance to the hummingbird's shade. Hummingbirds have almost one thousand feathers on their frame. The definition of iridescent is something that has rainbow-like colors. An instance of iridescent is the inner of an abalone shell. outstanding, lustrous, or colorful.
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does anabolic or catabolic release energy?
Answer:
so yes
Explanation:
Catabolic reactions break down complex chemicals into simpler ones and are associated with energy release. Anabolic processes build complex molecules out of simpler ones and require energy.