Light energy is used in photosynthesis to convert carbon dioxide and water into glucose and oxygen. 1 glucose molecule and 6 oxygen molecules are produced for every 6 carbon dioxide and 6 water molecules.
C₆H₁₂O₆ is the chemical formula for glucose, a simple sugar. When a glucose molecule is assembled during photosynthesis, it absorbs 12 hydrogen ions from the chloroplast stroma. Reactants in photosynthesis include oxygen, carbon dioxide, ATP, and NADPH. Water and GA3P are both products. Chlorophyll, water, and carbon dioxide are reactants in photosynthesis. When the process is finished, photosynthesis produces oxygen and carbohydrate molecules, most commonly glucose. These sugar molecules contain the energy required by living things to survive.
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All side lengths of ΔJKL equal 2 units. A transformation maps ΔJKL to ΔJ'K'L'. The length of side J'K' is 5 units. Is this a rigid transformation?
No, there is no one-to-one mapping of all the points of the pre-image to the image.
No, at least one segment length is not preserved, making this a nonrigid transformation.
Yes, the vertices of the pre-image map to the vertices of the image.
Yes, all of the side lengths of the pre-image are proportionate to the image.
No, at least one segment length is not preserved, making this a nonrigid transformation.
This transformation is nonrigid since it does not retain the length of at least one segment.
An isometry, often known as a rigid transformation of the plane, preserves length.
Reflections, translations, and rotations, are a combination of these three transformations and are all considered "rigid transformations".
The idea of a rigid transformation is that neither the size nor the shape is changed.
The second response, which results in a unit with a length of 5 units, is valid because segment JK's length of 2 units is not preserved when it is mapped onto segment J'K'.
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Write a couple of sentences in you own words
Tell what group and period this element would be in from the picture below. 2pt
Describe how you determined it place using words like period, group, valence, energy shells 4pts
Determine what family it belongs to. 1pt
The picture shows the electronic configuration of Carbon which belongs to 14 group and 2nd period in the periodic table.
What do you mean by inert gas?A gas is said to be inert if it does not readily react chemically with other substances and does not afterwards produce chemical compounds. The noble gases, also known as the inert gases in the past, frequently do not react with numerous things.
In the figure there are 2 e in k shell 8 e in l shell and 2 e in last one. So total becomes 12 e. The Carbon contains 12 electron in shells , valence electrons are 2 electrons , group is 14 , period is 2 and family is Carbon family.
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A student is told that both energy and mass must be conserved in every chemical reaction. She measures the mass of Hydrochloric acid and a zinc strip separately. She then places the zinc strip into the acid and bubbles form as the zinc looks like it disappears. The combined mass afterward is less than the original.
Which of these can explain this result?
The bubbles indicate that a gas is created and mass is lost as it escapes from the container.
Why stduent is told that the both energy and the mass must be conserved in every chemical reaction?
According to the the law of conservation of mass states that in a chemical reaction mass is neither created nor destroyed.So that the student told that both the energy and mass must be conserved in every chemical reaction.
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In a neutralization reaction, water is formed from
Answer:
A neutralization reaction is when an acid and a base react to form water and a salt and involves the combination of H+ ions and OH- ions to generate water
Make Me As Brainliest
Answer:
it's b
hydrogen ions and hydroxide ions...
hope it helps you
1. What is conductivity? How can electrical conductivity be measured?
2. What does an electrical conductivity probe consist of?
3. How does an electrical conductivity probe work?
4. What is current flowing through the water proportional to?
5. What happens when there is a higher dissolved salt/ion concentration?
6. What is an electrolyte?
Because there are free electrons present, solid copper conducts electricity. CuCl2(g) does not conduct electricity because it contains no free electrons.
Because free electrons are drawn to metal cations by electrostatic forces in the metallic connection, metals are referred to as conductors of electricity. The conductivity of solid metals is accounted for by these free electrons.
What is conductivity?
The word "conductivity" is used to describe a number of physical phenomena. In terms of heat, conductivity is the amount of heat that moves through a slab with a unit cross-sectional area per second when there is no temperature difference between the two faces.
Conductivity is a helpful indicator of water quality in general. Every body of water has a typical conductivity range that, once determined, can be used as a reference point for comparison with routine conductivity tests.
What is electrolyte ?
A medium that contains ions and is electrically conducting due to the mobility of those ions but does not conduct electrons is called an electrolyte. This contains the majority of salts, acids, and bases that are soluble when dissolved in polar solvents like water.
Along with magnesium, calcium, phosphate, and bicarbonates, sodium, potassium, and chloride are the important electrolytes. We obtain electrolytes from our diet and drinks. Unbalanced amounts of these electrolytes might result in either high or low levels.
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PLEASE HELP! DUE IN 3-5 MINUTES THANK YOU!!
The specimen at 100x zoom can be identified as an Animal cell as per the observations of it containing the cytoplasmic elements like the cytosol.
The contents of an animal cellOrganelles, cytoplasmic elements, the cytosol, and the cell membrane make up the normal structure of an animal cell.
Each of the cell's organelles is a membrane-bound structure with a specific function. Animal cells are the kind of typical eukaryotic cells because they have the presence of a membrane-bound nucleus and organelles and are encased in a plasma membrane.
Animal cells lack a cell wall, in contrast to eukaryotic cells found in plants and fungus. The building blocks of all living things in the kingdom Animalia are called animal cells.
They give bodies shape, take in nutrients to turn into energy, and aid in animal movement. They are also capable of self-replication and contain all an organism's genetic material.
The biggest organelle in animal cells is the nucleus. Cell activity is controlled by the nucleus. It also includes the chromosomes of the cell.
The genetic material (DNA) that makes you who you are is contained in the chromosomes.
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a 0.458 g sample of khp (molar mass 204.22 g/mol) is titrated to a pink phenolphthalein endpoint with 12.84 ml of a naoh solution. what is the concentration of the solution?
0.175M is found to be the concentration of the solution from the given titration reaction.
The idea of concentration is one that is frequently utilized in chemistry and related domains. It is a measurement of how much of one substance is diluted with another.
A chemical species' concentration in a solution, specifically the quantity of a solute per unit volume of solution, is measured by its molar concentration.
Given:
Weight = 0.458g
Volume = 12.84mL
Molecular weight = 204.22g/mol
To find:
Concentration = ?
Formula:
Concentration = no. of moles / volume
Calculations:
No. of moles = weight given / molecular weight
No. of moles = 0.458 / 204.22g/mol
No. of moles = 2.242 x [tex]10^{-3}[/tex] mol
Concentration = 2.242 x [tex]10^{-3}[/tex] / 12.84mL
Concentration = 0.175M
Result:
The concentration of the given solution is found to be 0.175M
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The addition of ice at the end of the heating process is important because it:
A. Reacts with excess salicylic acid
B. Warms the solution slightly
C. Increases the solubility of the aspirin product
D. Reacts with excess acetic anyhdride
The addition of ice at the end of the heating process is important because it increases the solubility of the aspirin product.
What is heating process and why is it needed to add ice at the end of the heating process?Heating process simply denotes to the the process of heating out the products by the release of energy.The addition of ice is always essential when heat becomes so explosive and irresistive.Now here in this question, at the end of the heating process ice is added to increase the solubility.We often bring heat to the product for its better solubility, as in here heat is added for the same purpose.So the ice is added to increase the solubility of the aspirin product.To know more about heating process visit:
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Which element has the following electron configuration? 1s^2 2s^2 2p^2 3s^2 3p^6 4s^2 3d^10 4p^5
How many grams are there in 8.99x1024 atoms of carbon
The atomic weight of one carbon atom = 12 amu
Mass of 1 mole of carbon atoms = 1 × atomic weight of one carbon
= 12 gm
Since we already know that the atomic mass is specified for one mole of the atom, we may get the mass of one atom by dividing the mass by Avogadro's number.
The mass of one atom of carbon is = Atomic mass/Avogadro number
= 12g/6.022×10^23
= 126.022×10^−23g
= 1.9933×10^−23g
Hence, the mass of 1 carbon atom is 1.9933×10^−23grams
Now,
Mass of 8.99 x 10^24 atoms = (8.99 x 10^24) x (mass of 1 carbon atom)
⇒ Mass of 8.99 x 10^24 atoms = 8.99 x 10^24 x 1.9933×10^−23grams
⇒ Mass of 8.99 x 10^24 atoms = 17.919767 x 10
⇒ Mass of 8.99 x 10^24 atoms = 179.2 g (approx.)
What is Mole concept?A practical way to indicate the quantity of a substance is using the mole concept. The numerical value and the units in which the magnitude is represented can be used to decompose any measurement into two pieces.For instance, the magnitude and unit are "2" and "kilogram," respectively, when a ball's mass is determined to be 2 kilograms.One gram of a pure element is considered to possess a staggering number of atoms when discussing particles at the atomic (or molecular) level. The term "mole" is frequently used in this context. The unit called a "mole," which is a count of a huge number of particles.A mole is the measure of a substance that includes precisely 6.02214076 * 10^23 of the substance's "elementary entities," according to the science of chemistry.To learn more about Mole concept, refer to:
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perfect gas is a hypothetical gas in which the volume of the individual atoms (molecules) is negligible compared to the total volume of the container.
Perfect gas is a hypothetical gas in which the volume of the individual atoms (molecules) is negligible compared to the total volume of the container is true.
For a gas to be ideal, it has to follow the following rules.
The volume of molecules of a Perfect gas also known as an ideal gas has to be almost negligible as compared to the volume of the container.
The molecules do not attract or repel each other. They hardly collide with other in an elastic collision. This elastic collision also happens with the wall of the container.
So according to the first rule, the volume of individual molecules is negligible as compared to the the total volume of the container.
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A sample of natural sulfur consists of three isotopes:
95.0% sulfur-32 (31.97 amu)
0.75% sulfur-33 (32.97 amu)
4.21% sulfur-34 (33.96 amu)
Based on this information, what is the average molar mass of sulfur?
Answer
A
31.92 g/mol
B
32.00 g/mol
C
32.80 g/mol
D
32.05 g/mol
Average molar mass of sulfur is 32.80 g/mol
The average atomic mass of a chemical element is calculated by taking into account the atomic masses of its naturally occurring isotopes and their respective abundances
Here given data is
95.0% sulfur= 32 (31.97 amu)
0.75% sulfur= 33 (32.97 amu)
4.21% sulfur= 34 (33.96 amu)
We have to find average molar mass of sulfur = ?
Average molar mass = ∑i × isotope of i × abundance of i
Average molar mass = 31.97×95.0 + 32.97 ×0.75 + 33.96×4.21
Average molar mass = 32.80 g/mol
Average molar mass of sulfur is 32.80 g/mol
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a 3.0-l sample of helium was placed in a container fitted with a porous membrane. half of the helium effused through the membrane in 13 hours. a 3.0-l sample of oxygen was placed in an identical container. how many hours will it take for half of the oxygen to effuse through the membrane?
The total time taken by half of the oxygen to effuse through the membrane is 68.18 hours.
The rate of effusion can be calculated by :
r = V/t
r = 1.5 L/24hr
r = 0.0626 L/hr
According to Graham's Law, effusion is inversely proportional to the square root of their molar mass.
[tex]\frac{r1}{r2}[/tex] = √[tex]\frac{M2}{M1}[/tex]
The molar mass of He is 4 g/mol and molar mass of O is 32 g/ mol.
Putting the values
0.0626 L/hr ÷ [tex]r_{2}[/tex] = √32/4
[tex]r_{2}[/tex] = 0.022 L/hr
Therefore, the time taken for effusion of half of 3 L that is 1.5 L of oxygen is:
Time = 1.5 L/ 0.022L/hr = 68.18 hours
Hence, the total time taken by half of the oxygen to effuse through the membrane is 68.18 hours.
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a heliox deep-sea diving mixture contains 2.0 g of oxygen to every 98.0 g of helium. what is the partial pressure of oxygen when this mixture is delivered at a total pressure of 8.2 atm ?
The partial pressure of oxygen when the mixture is delivered at pressure of 8.2 atm is 0.020 atm.
What is partial pressure?Each gas that makes up a mixture of gases has a partial pressure, which is the notional pressure of that gas as if it alone filled the original combination's complete volume at the same temperature.
The formula, which calculates partial pressure,
Total pressure = partial pressure Mole fraction
Mole proportion of oxygen in a mixture is equal to the sum of the moles of oxygen and helium.
109 grams are equal to one gigagram, or gg.
= 2 × 10⁹/32 /2 × 10⁹/32 + 98 × 10⁹ / 4
= 2.54 × 10⁻³
oxygen's partial pressure is equal to its mole fraction plus its overall pressure.
= 2.54 × 10⁻³ × 8.0 atm
= 0.02032 atm
= 0.020 atm
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HELP ASAP! Will mark brainliest for correct answer
The density data for a
substance was collected in
the table to the right. The
substance is known to have a
density of 7.4 g/mL. What is
the percent error for the data?
A. about 12%
B. about 0.12%
C. about 14%
D. about 0.14%
The correct option is A.
The percentage error in the measurement of the density is about 12%.
What is error in measurement?The error in any measurement is the difference between the actual measurement of the substance and the estimated measurement of the substance.
The percentage error is obtained by dividing the error in the measurement by actual measurement and multiply the result by 100%.
The average density measurement = 6.5 g/mL
error = actual measurement - estimated measurement
error = 7.4 g/mL - 6.5 g/mL
error = 0.9 g/mL
percentage error = (0.9 / 7.4) x 100%
percentage error = 12.16 %
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If salinity does not change, how does seawater density change as temperature changes?
The density of water decreases as it becomes warmer, more space. When comparing two samples same salinity of water, sample with the higher temperature will have more volume and hence be less dense.
What causes the salinity?The accumulation of salt from rainfall over a long period of time or the weathering of rocks are two examples of natural processes that contribute to primary salinity.
How salinity is measured?By running an electric current between a salinity meter's two electrodes in a sample of soil or water, it is possible to determine the salinity of both water and soil. The quantity and make-up of dissolved salts affect the electrical conductivity, or EC, of a soil or water sample.
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consider the given balanced equation. c 3 h 8 5 o 2 ⟶ 3 c o 2 4 h 2 o how many moles of carbon dioxide are formed when 3 moles of propane ( c 3 h 8 ) react? select one: 12 4 3 9
Based on the balanced reaction equation, 9 moles of carbon dioxide are formed when 3 moles of propane are combusted.
From the balanced reaction equation we can see that 3 moles of carbon dioxide are formed upon the combustion of a single mol of propane:
C₃H₈ + 5 O₂ → 3 CO₂ + 4 H₂O
These molar ratios are constant and enable us to set up a simple proportion:
1 mol of propane : 3 mol of carbon dioxide = 3 mol of propane : X
X = 3 mol of carbon dioxide * 3 mol of propane / 1 mol of propane
X = 9 mol of carbon dioxide
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study the steps in the reaction mechanism. elementary step 1: br2 no⟶br2no elementary step 2: br2no no⟶2brno give the overall reaction that this mechanism describes.
The mechanism of formation of Nitrosyl bromide from [tex]Br_2[/tex] and NO in a chemical reaction is depicted by the given elementary steps.
The outcome of a reaction combining nitrogen monoxide and [tex]Br_2[/tex] as our starting materials will be nitrosyl bromide; the final mixture will have a combination of all three chemicals.
Nitrosyl bromide is a red gas that condenses slightly below room temperature. The reversible reaction of nitric oxide with bromine can produce nitrosyl bromide.
Overall reaction can be obtained by adding the given two elementary steps:
[tex]Br_2 + NO \rightarrow Br_2NO\\Br_2NO + NO \rightarrow 2BrNO[/tex]
On addition of the above two reactions,
[tex]Br_2 + Br_2NO + 2NO \rightarrow Br_2NO + 2BrNO[/tex]
The overall reaction obtained is:
[tex]Br_2 + 2NO \rightarrow 2BrNO[/tex]
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what is the role water plays in how macromolecules function in the body ?
how does water help macromolecules carry out their functions ?
Answer:
binomial
Explanation:
because the fact that macromolecules is carry out with functions constant-1,2,3,4 etc
1. State the general period and group trends among
main-group elements with respect to each of the
following properties:
a. atomic radii
b. first ionization energy
c. electron affinity
d. ionic radii
e. electronegativity
2. a. In general, how do the periodic properties of
the d-block elements compare with those of
the main-group elements?
b. Explain the comparison made in (a).
3. For each main-group element, what is the
relationship between its group number and
the number of valence electrons that the group
members have?
Explanation:
ok so I believe:
a. increase in atomic radii going down a group and decrease going across a period.
b. increase in IE1 going across a period and up a group. the highest IE1 elements are like He, Ne, F and first ionization energy decreases moving further away from those elements moving south west on the periodic table.
c. electron affinity increases moving across a period left to right.
d. ionic radii increases going down a group and decreases going across a period left to right
e. electronegativity increases across a period but decreases down a group. (opposite for electropositivity)
what is meant by the d-block elements? are you referring to the spdf location?
HELP ME 41 POINTS FR FR
Which letter(s) represent(s) a phase change occuring?
Answer:
A= solid
B= Melting and freezing
C= Liquid
Atoms bond together using chemical bonds;
chemical bonds are stored energy that hold atoms
together within a molecule. Would chemical bonds
be considered a form of kinetic energy or potential
energy? Explain.
Answer:
potential energy
Explanation:
they only store energy, so they’re not using it which would be kinetic energy.
the kitchen drain is blockrd witb grease. using your knowledfe of chemical reactions and transfer of enerhy, how can tou unpljg this drain without physically touching the blockage
Following are the methods to unplug this drain without physically touching the blockage.
1. Pour hot, boiled water down a drain.
If you choose to attempt to clear a grease blockage on your own and you are certain that your plumbing system is made up of metal pipes rather than plastic, you might try flushing it out with hot water. If your pipes are constructed of plastic, we wouldn't recommend trying this because you run the risk of melting or weakening the joints.
2. Hot water and vinegar
A 50:50 solution of hot, boiling water and vinegar performs similarly to the commercial chemical drain cleaner (and is just as effective). The advantage of a homemade vinegar and water solution is that it is non-toxic and substantially less corrosive than commercial drain cleaners. Grease that has accumulated on the inside walls of your pipes is dissolved by warm water and vinegar. Give yourself another dose a few minutes later if the first dose doesn't work.
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14. On what substance might you find a plastic fingerprint? *
A.A bar of soap
B.On a door frame
C.A piece of paper
D.OA blood covered floor tile
Answer:
Soap
Explanation:
Explain the difference between an atom and an ion
Refer to attachment <(￣︶￣)↗
the specific rotation of a pure substance is 10degrees. a mixture of this substanc eand its enantiomer has an observed specific rotation of 2 degrees. what is the eprcentage of the excess steroisomer in the mixture
The percentage of the excess stereoisomer in the mixture c.25%.
Stereoisomerism, or spatial isomerism, is a form of isomerism wherein molecules have the same molecular components and series of bonded atoms, but fluctuate in the three-dimensional orientations of their atoms in space.
The observed rotation of the mixture is levorotary (terrible, counter-clockwise), and the precise rotation of the pure S enantiomer is given as dextrorotary (fantastic, clockwise), which means that the pure R enantiomer should be levorotary, and the mixture has to comprise extra of the R enantiomer than of the S enantiomer.
Enantiomers have the same chemical and bodily homes and are indistinguishable from every other except for the route of rotation of the plane of polarized mild. they're described as optically lively.
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Disclaimer:- your question is incomplete, please see below for the complete question.
the specific rotation of a pure substance is 10 degrees. a mixture of this substance and its enantiomer has an observed specific rotation of 2 degrees. what is the percentage of the excess stereoisomer in the mixture
a.50% b.75% c.25% d.0% e.80%
A seed-bearing plant starts its growth from?
A: An egg cell
B: A Sperm Cell
C: The Joining Of Egg And Sperm Cells
A seed-bearing plant starts its growth from the Joining Of Egg And Sperm Cells in order to form a zygote cell (Option C)
What is a zygote cell?A zygote cell is the first cell product of the process of fertilization, which involves the fusion of a sperm (in this case a pollen grain because we are talking about plants) and one egg cell.
Therefore, with this information, we can conclude that a zygote cell is generated by fertilization and it is the start of diploid life both in plants and animals.
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What is the density
Answer:
i dint not knowwws wj
example
Explanation:
this is so hard someone give answer
a density is a height and can the numbers
maid that because is too long with a
short 40.-- micality
hope itz help
an unknown compound containing tellurium and bromine is analyzed and it is determined that 28.53% of the compound by mass is composed of tellurium. what is the mass percent of br in the compound?
The mass percent of bromine in this tellurium and bromine compound is 71.47%.
If the compound is made up only of tellurium and bromine, then if the mass percent of tellurium is 28.53%, we can safely assume that the rest is bromine. So, we take the 100% and subtract the mass percent of tellurium to calculate the mass percent of bromine:
100% - 28.53% = 71.47%
The mass percentage of bromine in this compound is 71.47%.
We can even use this data and the molar masses of tellurium and bromine to calculate the empirical formula of the compound if needed.
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