Answer:
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Describe the relationship you would expect between depth and light penetration
Answer:The intensity of sunlight decreases rapidly with depth. The depth of the water not only affects the colors of light that are noticeable underwater, it also affects the intensity, or amount of light. Within the first 10 m, water absorbs more than 50 percent of the visible light energy
An atom with an equal number of electrons and protons has no _____
An atom with an equal number of electrons and protons has no charge.
Rearrange them in the correct sequence.
Harvesting, Sowing, Manuring, Tilling and Ploughing, Irrigation, Weeding.
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Boron iodate reacts with Iron (Il) phosphide and produces Boron
phosphide and Iron (II) iodate:
11. Write and balance the given chemical reaction.
12. Identify the limiting reagent if 1.825 moles of Boron iodate reacts with 112.0
g Iron (II) phosphide
13. How much Iron (II) iodate is produced in mole?
14. What is the amount in grams of the excess reactants is expected to remain
after the reaction?
15. What is the actual yield of the reaction if the percentage yield is 72.659
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Answer:
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11. The balanced chemical reaction is:
2 B(IO₃)₃ + 3 Fe₃P → 2 BF₃ + 3 Fe(IO₃)₂
12. In this case, the limiting reagent is the Iron (II) phosphide.
13. The amount of Iron (II) iodate produced is 1.825 moles.
14. The amount of excess Boron iodate remaining after the reaction is 0.265 moles.
15. The actual yield of the reaction is 132.1 g.
11. To write the balanced chemical reaction, we need to first determine the correct coefficients for each reactant and product. We can do this by balancing the number of atoms of each element on both sides of the equation.
12. The limiting reagent is the reactant that is used up first. In this case, the limiting reagent is the Iron (II) phosphide. This is because 112.0 g of Iron (II) phosphide is equivalent to 0.560 moles, which is less than the 1.825 moles of Boron iodate.
13. To calculate the amount of Iron (II) iodate produced, we need to multiply the number of moles of Boron iodate by the molar ratio between Boron iodate and Iron (II) iodate.
14. The amount of excess Boron iodate remaining after the reaction is 0.265 moles. This is because 1.825 moles of Boron iodate minus 0.560 moles of Iron (II) phosphide is equal to 0.265 moles.
The amount of excess Iron (II) phosphide remaining after the reaction is 56.0 g. This is because 0.560 moles of Iron (II) phosphide is equal to 56.0 g.
15. To calculate the actual yield of the reaction, we need to multiply the theoretical yield by the percentage yield.
The actual yield of the reaction is 132.1 g. This is because 1.825 moles of Boron iodate is equivalent to 132.1 g and the percentage yield is 72.659.
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Lou’s board games are all on a shelf with a length of 30 inches, a width of 12 inches, and a height of 14 inches. If his games take up half of the shelf, which expressions show how to calculate the volume of the space that the games are taking up? Check all that apply.
One-half(30 + 12 + 14)
30 + 12 + 14
15(6)(7)
One-half(30)(12)(14)
30(14)(12)
15(12)(14)
15(6)(7)
One-half(360)(14)
Answer:
4 6 8
Explanation:
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The answer is;
D, F, and H!
The diagram below shows a stack of rock layers. These layers have not changed position since they formed. Examine the diagram and answer the question that follows. If the age of Layer 4 is 400 million years and the age of Layer 1 is 500 million years, then the age of Layer 3 is A. older than 500 million years. B. between 400 million and 500 million years. C. 500 million years. D. younger than 400 million years.
The age of layer 3 will be between 400 million and 500 million years. Therefore, option (B) is correct.
Why rock dating is important?Finding estimates of the ages of rocks is essential for identifying the speeds of geological processes as well as the history of geological occurrences. Some rocks may be used to determine the relative sequence of events. The most well-known methods are uranium-lead dating, potassium-argon dating, and radiocarbon dating.
Radiometric dating, which considers the ratio of two distinct isotopes in a sample, establishes the age of rocks. Geologists may use tools like these to assess the age of a material since radioactive isotopes degrade over a predictable period of time. mass spectrometer for thermal ionisation
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The saturated fats of animals differ from the unsaturated ones of plants. Unsaturated fats have
A. higher molecular weights.
B. more metabolic processes that they participate in.
C. nitrogen atoms in their structures.
D. a higher number of double bonds between carbon atoms in their structures.
E. more functional utility in animal species, particularly in marine life forms.
Answer:
D. a higher number of double bonds between carbon atoms in their structures.
Explanation:
A student places water in a freezer. Several hours later, the student observes that the water has frozen.
Which statement BEST describes the arrangement and motion of particles in the ice?
The particles have high energy and move about freely.
The particles have low energy and vibrate in a fixed position.
The particles have high energy, are charged and move about freely.
The particles have low energy and are able to move past each other.
Answer:
the particles have low energy and are able to mive and past each other
The particle in the ice will have low energy and vibrate in a fixed position. The correct option is B.
What is freezing?The process by which something changes from liquid to solid as the temperature drops is known as freezing. Water basically freezes at 0 degrees Celsius.
The process of changing a substance from a liquid to a solid is known as freezing. When a liquid's molecules slow down enough, their attractions cause them to arrange themselves into fixed positions as a solid.
The average energy of the molecules in a liquid decreases as it cools. At some point, the amount of heat removed is great enough that the molecules' attractive forces draw them close together, and the liquid freezes to a solid.
The particles in a liquid eventually stop moving and settle into a stable arrangement, forming a solid.
Thus, the correct option is B.
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Tectonics plates float on the ?
A.outer core
B.inner core
C.mantle
D.lithosphere
Answer:
I think mantle
Explanation:
Answer:
Mantle
Explanation:
The rocky surface floats slowly on the mantle.
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(c) Fig. 4.2 shows the rate of water conduction up three different trees in a forest over 24 hours.
2.5
2.0
1.5
rate of water
conduction
Idm per hour
1.0-
0.5
8
16
20
12
time/h
Fig. 4.2
O Describe the rate of water conduction in tree A, during this 24 hour period.
You will gain credit for using the data in Fig. 4.2 to support your answer.
Answer:
conduction up three different trees in a forest over 24 hours.
2.5
The graph suggests the amount of water table that is beneath the trees. The graphs also indicate the rate of conduction by the trees. The difference in the water table is considered to calculate the total volume of water consumed by the tree in 24 hours.
What is transpiration?Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers.
The rate of conduction could be averaged and then the total volume used in 24 hours can be easily calculated by the product of the average rate of water conduction and 24 hours.
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True or False? The skills and characteristics needed for a high-quality friendship are the same skills and characteristics needed in a committed long-term relationship or marriage.
From what blood vessel does the blood that flows through the
grafted blood vessel come?
Which factor is a major cause of global warming?
Answer: increased burning of fuels
Explanation:
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Answer:A
Explanation:
Unit 5 DQ 1 Debate on global warming The issue of global warming has become an unending debate. Which side of the debate are you in? Support your decision with one reference
Answer:
Global average temperatures have increased in evolving patterns in which cooler temperatures (shown in blues) have generally changed to warmer temperatures (shown in progressively intense reds).
How much time does it take to use 300 W of power to do 1800 J of work? Round your answer to the near
number.
SERE
The time is
S.
Answer:
the answer is 6 secs rounded to nearest ten is 10
Explanation:
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Which of the following are the products of respiration?
1)ATP, Water, and Oxygen
2)Carbon dioxide, Oxygen, and Water
3)ATP, Carbon Dioxide, and Water
4)Glucose, Water, and Carbon Dioxide
Where would you collect
data during an
experiment?
Answer:
Recall that data can be collected in two main ways: (1) through sample surveys or (2) through designed experiments. While sample surveys lead to observational studies, designed experiments enable researchers to control variables, leading to additional conclusions.
Which statement best describes the energy flow as it passes from producers to tertiary consumers?
Question 4 options:
Fifty percent of the energy produced passes to each trophic level.
Ten percent of the energy is transferred through each trophic level.
One hundred percent of the energy produced passes to each trophic level.
One percent of the energy produced passes to each trophic level.
The graphs here show the distribution of beak depths for the ground
finches on Daphne Major, an island in the Galapagos. The bird beaks were
measured over a multi-year study, including a time period before and after
a drought. The drought reduced the supply of seeds and left most of the
seeds as thick-walled nuts that survived the drought. Analyze the data and
select the claim about natural selection and genetic diversity that is
supported by the data.
Natural selection tends to reduce genetic variation, as there was a smaller distribution
of beak depths, but it tends to select for the most fit phenotypes, as there was an
increase in average beak depth after the drought.
Natural selection tends to increase genetic variation, as there were more ground
finches after the drought, and it tends to select for the most fit phenotypes, as there
was an increase in average beak depth after the drought.
Natural selection tends to reduce genetic variation, as there was a smaller distribution
of beak depths, but it tends to select against the most fit phenotypes, as there was an
increase in average beak depth after the drought.
Natural selection tends to increase genetic variation, as the average beak size
increased after the drought, but it tends to select against the most fit phenotypes, as
there was a decrease in population size for the finches after the drought
Answer: (A) Natural selection tend to reduce genetic variation as there was a smaller distribution of beak depths, but it tends to select for the most fit phenotypes, as there was an increase in average beak depth after the drought.
Explanation: The picture below shows proof if needed. On USATP
Natural selection tend to reduce genetic variation as a smaller allocation of beak depths, but it tends to select for the most fit phenotypes, as an increase in average beak depth after the drought.
How does natural selection affect genetic variation?Genetic variations that vary gene and protein role.
If a trait is favourable and helps the someone survive and breed, the genetic variation is more likely to be passed to the next generation.
Thus, option "A" is correct by selecting for or against a specific gene.
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Please respond with true or false on all statements
Natural resource use is generally lower in developing
countries because people cannot afford many products.
The nations that consume the most oil are the nations that produce the most oil.
Pollution from discarded material degrades the land, air, and
water.
Consumerism leads to greater resource use, but it also leads
to more waste.
All of our electronic wastes are recycled within our country.
why is it important to determine the manner/mechanism of death
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3. What do fossils teach us?
4. are transition fossils important for proving evolution?
5. What can scientists assume about individuals with similar anatomy?
6. Compare and contrast homologous and analogous structures?
7. What do vestigial structures teach us?
8. What can scientists assume about species with similar embryos?
9. What is biogeography and why is it important for proving the theory of evolution?
10. Describe one area where microevolution can be observed today
What signals your body to breathe out, or exhale. We learning about the respiratory system
Answer: Your brain constantly gets signals from your body which detect the amount of oxygen and carbon dioxide in your blood. Your brain will send signals to the muscles involved in breathing and adjust your breathing rate depending on how active you are.
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In 1980, Mt. St. Helens erupted. The resulting lahar flowed over a wide area of the Cascade Mountains. Which of these statements DOES NOT describe the effect of the volcanic eruption?
A. It affected the living and nonliving components of the ecosystem.
B. It removed populations of mammals from the mountainside.
C. It led to succession on the mountainside.
D. It affected only nonliving components of the ecosystem.
Correct answer is C
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Is bacteria prokaryotic or eukaryotic
Which components makes up the "backbone" of the DNA molecule?
O phosphate and nitrogen bases
O deoxyribose sugar only
O nitrogen bases
O phosphate and deoxyribose sugar
Which substance keeps its shape, weight, and volume when it is moved to a bigger container?
Answer:
Wood
Explanation:
Unless kept in a confined space, oil, are, and water will all naturally deform out of their previous shape when transferred to another container. Wood, on the other hand, is a solid, which means it will stay in it's shape.
3 Full sentences,
To what extent can we reverse the destruction of the natural world?
Answer:
Using too much water from lakes and rivers can affect animals’ habitat. Conserve this resource by taking five minute showers, turning off the faucet when you brush your teeth, and bugging your parents to fix leaky pipes.
Explanation:
Non vascular plants are quite commin in the forests along the coast of Norther California but are relatively rare in the ecosystems around Davis in the Central Valley. What aspects of the life cycle of these plants make it difficult for them to reproduce on our area
Answer:
The Central Valley of northern California is a region where there is little water supply, while nonvascular plants cannot efficiently store water and they have primitive traits that are dependent on water for reproduction.
Explanation:
The Central Valley of northern California is characterized to have little natural precipitation/snowmelt during the dry summer months. In addition, California's climate also has extended periods of drought. On the other hand, non-vascular plants such as mosses and liverworts, are a type of plant that lacks vascular tissues (xylem and phloem), and they also lack true roots, stems, or leaves. These plants cannot efficiently absorb and store water (which fundamental for survival), and thereby the success of these plants in establishing and reproducing in the ecosystems of the Central Valley is limited to their physiological tolerance to desiccation. Moreover, non-vascular plants may also exhibit primitive traits related to their reproductive cycle (e.g., a flagellated sperm) that are dependent on water for reproduction.
The most complex organic
compounds are the_____.
Answer:
i-propyl cyanide
Explanation:
But i-propyl cyanide is the largest and most complex organic molecule found to date - and the only one to share the branched atomic backbone of amino acids. "The idea is to know whether the elements that are necessary for life to occur… can be found in other places in our galaxy."