Answers
Answer:
It isn't a major factor in determining melting point.
Here is a table of compounds with their densities and melting points.
Compound; Density/g·mL⁻¹; mp/°C
hexane; 0.65; -95
ethanol; 0.79; -114
water; 1.00; 0
chloroform; 1.48; -64
dimethyl ether; 1.97; -141
sodium chloride; 2.16; 801
methyl iodide; 2.28; -66
mercury; 13.59; -39
The density increases as we go down the list, but the melting points vary all over the map.
The intermolecular attractions are much more important factors in determining the melting point.
Related Questions
Explain how cells all come from pre-existing cells after thinking about the components of the cell theory
Answers
6. Surface currents in the ocean can influence
land areas they flow past because they
a. earthquakes on, stimulate tectonic plates
b. streams on, carry extra water onto the land
c. climates of, carry warmer or colder water great distances
d. rock formations on, prevent erosion
Answers
Answer:
c. climates of, carry warmer or colder water great distances.
Explanation:
Surface currents in the ocean can affect the temperature of the surrounding air and land areas they flow past, influencing regional climates. Warm ocean currents can bring warmer and more humid weather to the adjacent land, while cold ocean currents can have the opposite effect, cooling the air and land temperatures. This can have significant effects on local ecosystems, agriculture, and economies.
An organism has 18 chromosomes in its body cells. Its sex cells have 9 chromosomes.
Which statement correctly explains this?
Answers
For an organism that has 18 chromosomes in its body cells and its sex cells have 9 chromosomes, the correct statement is C, Its sex cells are haploid and a result of meiosis.
What are haploids?Haploid cells have half the number of chromosomes as diploid cells. Mitosis is a type of cell division that produces two identical daughter cells. Meiosis is a type of cell division that produces four daughter cells, each with half the number of chromosomes as the parent cell.
In the organism described, the body cells are diploid (18 chromosomes) and the sex cells are haploid (9 chromosomes). This is because the sex cells are produced by meiosis, which is a type of cell division that reduces the number of chromosomes by half. This allows the sex cells to combine with each other to form a new diploid cell, which is the beginning of a new organism.
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Complete question:
An organism has 18 chromosomes in its body cells. Its sex cells have 9 chromosomes.
Which statement correctly explains this?
Its body cells are haploid and a result of mitosis.
Its sex cells are diploid and a result of mitosis.
Its sex cells are haploid and a result of meiosis.
Its body cells are diploid and a result of meiosis.
Meiosis takes place in the ____ of most organisms?
Skin
Gonads
Heart
Brain
Answers
What advantage did the rabbits with floppy ears have over the rabbits with striaght ears?
Answers
The advantage that rabbits with floppy ears have over rabbits with straight ears is not entirely clear, and there are different hypotheses that attempt to explain this trait.
What is Floppy Ears?
Floppy ears refer to ears that hang down rather than standing upright. This trait is commonly observed in some dog breeds, such as Basset Hounds, and in rabbits, such as the lop-eared breed.
In rabbits, the floppy ear trait is caused by a genetic mutation that affects the development of cartilage in the ear. Normally, the ear cartilage is strong enough to support the weight of the ear and keep it standing upright. However, in rabbits with the mutation, the cartilage is weaker and less able to support the weight of the ear, causing it to flop down.
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Lateralization is defined as
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Answer:
Hola hay hola buenos días para todos ustedes que
Can somebody help me please
Answers
• Average ecological footprint is implying per person
• The other answers are technically true, but the question is looking for the “best” answer
• All of the other answers except D imply an imperfect world
• A = Sustain resources for a short time
• B = People need resources to survive
• C = Sustain resources for a longer
time than A but will still run out faster than D
FCION 18 answ The questions that follow 21.1 Provide a suitable caption for the diagram. Life Sciences / Grade 10 FORMAL Task 3 2.1.11. 6 ASSIGNMENT 2.1.2. Give the numbers and names of the places (regions) where Chlorophyll-containing cells occur. 2.1.3. In which of the places in question 2.1.2 does most photosynthesis occur? Cre 24 MAY 2023 (2) (6) 2.1.4. How is the part named in question 2.1.3. structurally adapted for the process of photosynthesis? 2.1.5. Give the number and name of the tissue that transports the products of photosynthesis to the rest of the plant. 2.1.6. Name the components of tissue in question 2.1.5. 2.1.7. Give the number and name of the tissue that transports water to the leaves (2) to perform this (these) function(s)? The structure labelled 7 is involved with gaseous exchange. Name the gases that are exchanged through this structure. (1) 2.1.8. List FOUR ways in which the tissue in question 2.1.7 is structurally Suited / adapted to perform its function. 2.1.9. What is (are) the function(s) of part numbered 4? 2.1.10. How are the cells named in question 2.1.9. structurally adapted (2) (4) (2) (2) (3)
Answers
A suitable caption for the diagram would be "A diagram of a plant's internal structure, showing the different tissues and organs involved in photosynthesis, transport, and gaseous exchange."
The gases that are exchanged through the structure labelled 7 are oxygen and carbon dioxide. Oxygen is taken in from the air and carbon dioxide is released into the air. This process is called respiration.
The cells of the roots are structurally adapted for their function in a number of ways. They have a large surface area, which allows them to absorb more water and nutrients.
How to explain the informationChlorophyll-containing cells occur in the leaves (1), the stems (2), and the roots (3).
Most photosynthesis occurs in the leaves. The leaves are structurally adapted for photosynthesis in a number of ways. They have a large surface area, which allows them to absorb more sunlight. They also have a thin layer of cells, which allows the sunlight to penetrate to the chloroplasts. T
The tissue that transports the products of photosynthesis to the rest of the plant is the phloem. The phloem is a vascular tissue that consists of two types of cells: sieve tubes and companion cells. Sieve tubes are long, thin cells that lack nuclei. Companion cells are smaller cells that are located next to the sieve tubes. Companion cells help to provide the sieve tubes with nutrients and support.
The components of the phloem are sieve tubes, companion cells, and phloem parenchyma. Sieve tubes are the long, thin cells that transport the products of photosynthesis.
The tissue that transports water to the leaves is the xylem.
The structure labelled 7 is involved with gaseous exchange. N
The xylem is structurally suited to perform its function in a number of ways. It has a long, narrow shape, which allows it to transport water and nutrients over long distances. It has a strong cell wall, which allows it to withstand the high pressure of the water that is transported through it. It has a large surface area, which allows it to absorb more water and nutrients. It has a network of capillaries, which allows it to transport water and nutrients to the cells of the plant.
Part numbered 4 is the root. The roots anchor the plant in the soil and absorb water and nutrients from the soil.
The cells of the roots are structurally adapted for their function in a number of ways. They have a large surface area, which allows them to absorb more water and nutrients.
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Provide a suitable caption for the diagram.
In which of the places in question does most photosynthesis occur?
Name the gases that are exchanged through this structure. (
How are the cells named in question structurally adapted
explain how a kidney machine works if you have a kidney failure
Answers
Answer:
Explanation:
A kidney machine, also known as a hemodialysis machine, filters your blood through a dialyzer, which works like a kidney and filters out extra salt, waste, and fluid. The machine has built-in safety checks to ensure the process is safe and effective. A pump in the machine slowly draws out your blood, then sends it through the dialyzer. Your cleaned blood is sent back into your body through the second needle in your arm.
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Cause
The U.S. Constitution
establishes federalism.
A. The federal government cannot completely control the states.
B. State governments give up the power to collect taxes.
C. State governments are given the power to set up all courts.
D. The federal government gains the right to remove state leaders.
Answers
'The federal government cannot completely control the states' best completes the diagram.
What do you mean by Government?
Government is a system of organization through which a society or state is controlled, including its laws and policies. It is typically composed of an executive, legislative, and judicial branch, which operate together to ensure the protection of citizens and the effectiveness of laws and policies.
The federal government and the states exist in a system of shared power known as federalism. This means that the federal government and the states have certain powers that they can exercise independently of each other and that neither one can completely control the other. The federal government has certain enumerated powers such as the power to declare war, regulate interstate commerce, and raise taxes. The states, on the other hand, have the authority to pass laws on matters not specifically delegated to the federal government, such as education and local infrastructure. This division of powers ensures that the states maintain a certain level of autonomy and cannot be completely controlled by the federal government.
Hence, option A is correct.
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Where did people first settle?
Answers
Early settlements emerged in Mesopotamia (Iraq), Nile Valley (Egypt), Indus Valley (Pakistan/India), Yellow River (China), and Mesoamerica (Mexico/Guatemala/Honduras), fostering civilizations through agriculture, trade, and cultural development.
People first settled in various regions around the world, with the exact locations differing depending on factors such as climate, resources, and geographical features. Here are some examples of early settlements: 1. Mesopotamia: One of the earliest known settlements can be found in Mesopotamia, located in present-day Iraq. The fertile land between the Tigris and Euphrates rivers allowed for agricultural development, leading to the rise of ancient civilizations such as Sumer, Babylon, and Assyria. 2. Nile Valley: In ancient Egypt, people settled along the Nile River. The river provided fertile soil for agriculture and facilitated transportation and trade. The Nile Valley became the cradle of one of the most enduring civilizations in history. 3. Indus Valley: Another significant early settlement was in the Indus Valley, encompassing parts of modern-day Pakistan and India. The Harappan civilization, with its advanced urban planning and drainage systems, thrived in this region. 4. Yellow River: In China, people settled along the Yellow River (Huang He). The river's fertile floodplains supported agriculture, and ancient Chinese civilizations like the Xia, Shang, and Zhou dynasties emerged in this area. 5. Mesoamerica: In the Americas, early settlements arose in Mesoamerica, including the Olmec, Maya, and Aztec civilizations. These civilizations settled in areas such as modern-day Mexico, Guatemala, and Honduras, where they developed sophisticated agricultural practices and built impressive cities. It's important to note that these examples represent only a fraction of the various places where people first settled. Humans migrated and established communities in diverse regions across the globe, adapting to different environments and contributing to the rich tapestry of human history.For more questions on human
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Use your codon chart to determine the amino acid sequence. Remember to read through the strand and ONLY start on AUG and STOP when you reach a stop codon (UGA, UAA, or UAG). Follow the example in the box. Abbreviate the proteins using the first three letters of the amino acid name.
Answers
Methionine (AUG)Amino acids can be abbreviated using the first three letters of their name.
Methionine can be abbreviated as Met.
The given RNA sequence is AUGUAACGAUGCGUCGUGGCAUCAUGCUGCGUCAGCGGCGAGUCUGACCCGUCUCUAACAGGACGGCCGGGCGUUGUCGUUGA.
We can use the codon chart to determine the amino acid sequence.
The codon chart is used to determine which amino acid is coded by a particular codon in a strand of DNA/RNA.A codon is a sequence of three nucleotides in DNA or RNA that encodes for a specific amino acid.
Each codon codes for a different amino acid.
For example, the codon AUG codes for the amino acid methionine.
To determine the amino acid sequence, we start reading the RNA strand from the start codon AUG and continue reading until we reach a stop codon (UGA, UAA, or UAG).
Then we write down the amino acid sequence for the codons we read, using the codon chart.
Here, the sequence starts with AUG, which codes for methionine.
After that, the next codon is UAA which is a stop codon, so we can stop.
The amino acid sequence is therefore Methionine. So, the answer would be Methionine (Met).
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Which activity improves soil health?
removing animals
removing microbes
composting
applying herbicides
Answers
The activity that improves soil health is composting.
Soil fertilitySoil fertility is the ability of soil to provide the essential nutrients that is required for the growth of plants.
There are various activities that can be carried out in agriculture to improve the fertility or health of soil. A typical example is composting of soil.
Composting is the process of recycling organic materials, such as food scraps and leaves, into fertilizers that can improve soil fertility.
Therefore the activity that improves soil health is composting.
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Please Helpp
Why would it be difficult for plan animal cells to make cell energy if there wasn't sunlight
Answers
what is the analogy between the vacuole and a school?
Answers
Answer:
The vacuoles is like the cabinets in the school used to store items. where we release all of our energy. Cytoplasm is like the hallways of the school.
The bar chart here shows the relative speed of light through different types of media, air, water, and oil. Using the representation shown here, predict the speed of light through different media. Select ALL that correctly predict the light’s speed. A. Light traveling through glass would have a speed slower than that of light in air. B. Light traveling through a vacuum would have a speed higher than that of light in air. C. Light traveling through quartz would be faster than all speeds shown through the selected media. D. Light traveling through translucent plastic would be faster than all shown speeds through the media listed. E. Light traveling through humid air would be slower than the light through air but faster than light through water shown here.
Answers
Based on the information in the chart, light traveling through glass would have a speed slower than that of light in the air (option A), and light traveling through a vacuum would have a speed higher than that of light in the air (option B).
How does the speed of light change depending on the medium?Based on the graph, the denser the medium is the slower the light moves. For example, light is much faster when traveling in the air than when traveling in oil. Due to this, the true statements are:
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Ask a question about your assignment Explain what are shared characteristics of transcription to translation and what are their differences. Explain what their function is in each cell and their importance to the body.
Answers
Explanation:
perform the following the rhythm patterns using the given legend use any kind of membranophones pearl shoes us
A man's blood type is type A homozygous, and his wife is type B heterozygous. The probability their offspring wil AB is 25%
TRUE OR FALSE
Answers
True the offspring that was going to have the blood group with AB blood group was having the probability of about 25%.
what was blood group means ?
Blood group must be matched in very particular ways for a safe transfusion. A successful blood transfusion can be the difference between life and death. Learn more about matching blood types for transfusions by using the interactive image below.
In addition, Rh-negative blood is administered to Rh-negative patients, and Rh-positive or Rh-negative blood may be administered to Rh-positive individuals. The rules for plasma are inverted.
Type O blood is present in the universal red cell donor.
The universal plasma donor has blood type AB.
True the offspring that was going to have the blood group with AB blood group was having the probability of about 25%.
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What is the general structure and function of epithelial tissue?
Answers
Answer:
Epithelial tissues are widespread throughout the body. They form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands. They perform a variety of functions that include protection, secretion, absorption, excretion, filtration, diffusion, and sensory reception.
Mollusks, frogs, sea urchins, and bees can all be classified into which group?
bilateria
protostomes
parazoa
deuterostomes
Answers
A meteorologist observes the readings shown by a barometer on a particular day at 6 PM and 7 PM as shown below.
Two barometers. The barometer on the left at 6PM shows 960, the barometer on the right at 7PM shows 1000.
Which of these is the most likely prediction that the meteorologist would make about the weather? There is a possibility of
precipitation
hurricane
tornado
fair weather
Answers
Answer:
D. Final answer.
Explanation:
The study of a living being is called biology
The correct answer is D.
The barometer is a device is used to measure the pressure in the atmosphere. The information helps to check the water precipitation in the atmosphere by which they can predict the weather.
According to the question, the two barometers are showing a range between 950 -1000mmhg.
These indicate the fair weather
Hence, the correct option is D that is fair weather.
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Assume that the import of a particular amino acid across the plasma membrane is observed (1) to occur only down its concentration gradient and (2) to slow when a different but similar amino acid is added to the extracellular fluid. The movement of the amino acid through the membrane is most likely by
Answers
Answer:
The correct answer is - facilitated diffusion.
Explanation:
Facilitated diffusion is a form of facilitated transport of molecules such as amino acid, glucose, and others through the plasma membrane involving the passive or indirect movement of molecules along their concentration gradient, which is led by the presence of another molecule normally a pore or channel made up of integral protein.
Facilitated diffusion depends on several factors such as the size of molecules, type of molecules, similarity of molecules to extracellular matrix or fluid that slow or fast the diffusion process.
Thus, the correct answer is - facilitated diffusion.
What happens to the cell itself once all its processes are focused on building new viruses?
Answers
what would most likely happen to a person who is not getting enough essential amino acids in his or her diet?
A. The body would synthesize the amino acids.
B. Muscle growth and repair would be limited.
C. Stored protein would break down
D. The formation of proteins would increase.
Answers
Answer:
Muscle tissue would separate to supply amino acids.
a
Explanation:
how is the information between our dna structured
Answers
The similarly alongside the cladogram you move,the greater variations in DNA the organisms have compared to the common ancestor.
What is cladogram?A cladogram has been an evolutionary tree that diagrams the ancestral relationships amongst organisms. DNA sequence analysis of the hemoglobin alpha gene shows that humans and chimpanzees have a more similar sequence to each other than they do to the gorilla’s DNA sequence.
Analogies structure has been body parts that have a similar function but differ in structure. All vertebrate embryos have a tail and gill slits at some point during embryonic development.
Therefore, The similarly alongside the cladogram you move,the greater variations in DNA the organisms have compared to the common ancestor.
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Which of the following are examples of density independent limiting factors
Answers
Answer:
food or nutrient limitation, pollutants in the environment, and climate extremes, including seasonal cycles such as monsoons.
Explanation:
Food or nutrient limitation, pollutants in the environment are examples of density independent limiting factors.
What do you mean by density independent limiting factors?The category of density independent limiting factors includes fires, natural disasters (earthquakes, floods, tornados), and the effects of pollution. The chances of dying from any of these limiting factors don't depend on how many individuals are in the population.
Wildfire is abiotic (nonliving), and most density-independent limiting factors fall in this category. Other density-independent factors include hurricanes, pollutants, and seasonal climate extremes.
These density-independent factors include food or nutrient limitation, pollutants in the environment, and climate extremes, including seasonal cycles such as monsoons.
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What is one important inference we can make from the human impact equation?
Answers
Answer:
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water. These negative impacts can affect human behavior and can prompt mass migrations or battles over clean water.
Explanation:
i took the test
A certain population of flowering plants depends on bees for pollination. What will happen to this population if there is an increase in the number of pollinating bees?
A.
The population will not change.
B.
The population will not be able to reproduce.
C.
The population will decrease.
D.
The population will increase
Answers
If there is an increase in the number of pollinating bees, then D. The population will increase.
What is the natural process phenomenon of pollination?The natural process phenomenon of pollination refers to the fecundation mechanism in plants that involves the transport of pollen by means of insects from one plant to another, thereby it is associated with an increase in the number of plants.
Therefore, with this data, we can see that the natural process phenomenon of pollination is based on the movement of bees that carry out pollen.
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Answer:
the answer is increase
Explanation:
i had this one be for
using these images describe how variations in the flow of energy into and out of earths systems risky in changes in climate
write a short description about how i represented each factor
Answers
The average global temperature of Earth rises as the energy input exceeds the energy output from the Earth system.
How vital is the Earth System?The word "Earth system" refers to the interconnected physical, chemical, and ecological processes that take place on Earth. The system is made up of the poles, the atmosphere, the oceans, and the land. The natural cycles of the earth, such as those for carbon, water, nitrate, phosphorus, and sulfur, as well as deep Earth activities, are included.
What are the fundamental elements of the Earth system?Earth is made up of five main components or subsystems, including the Atmosphere, Hydrologic cycle, Biosphere, Cryosphere, & Geosphere. Earth is also embedded within much bigger systems, such as our Solar System & Milky Way Galaxy.
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which characteristics describe grassland biomes
Answers
Answer:
1. Vegetation structure that is dominated by grasses.
2. Rainfall and soils insufficient to support significant tree growth.
3. Most common at mid-latitudes and near the interiors of continents.
4. Grasslands are often exploited for agricultural use.
Explanation: