the graph shows three reaction pathways for the same biological reaction. one reaction pathway shows an uncatalyzed reaction, while two reaction pathways show catalyzed reactions: one catalyzed by enzyme x and one catalyzed by y. for this particular biological reaction, enzyme x is a better catalyst than enzyme y. which statements apply to each reaction?
Answers
Reaction A is the uncatalyzed reaction while Reaction B is catalyzed with enzyme Y and reaction C is catalyzed with enzyme X.
The graph of reaction A has a huge bump indicating that it requires greater activation energy. The greater the activation energy, the slower the reaction. Therefore, reaction A is an uncatalyzed reaction.
In the case of reaction B, the activation energy required lesser than A but greater than C which means that a catalyst is used but is not with the lowest activation energy. So it must have undergone a reaction with enzyme Y.
In the last case, the reaction required very less activation energy than the A and B reactions. Therefore, this reaction utilized the enzyme with the lowest activation energy which is enzyme X.
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Related Questions
Gold has a density of 19.32 g/cm3. Find the mass of 6.39 cm3 of gold.
Answers
Answer:
The answer is 123.45 gExplanation:
The mass of a substance when given the density and volume can be found by using the formula
mass = Density × volumeFrom the question
volume of gold = 6.39 cm³
density = 19.32 g/cm³
The mass is
mass = 19.32 × 6.39 = 123.4548
We have the final answer as
123.45 gHope this helps you
What geographic obstacle causes water to condense in an air mass as the air mass moves? Explain your answer.
A. Forests
B.oceans
C.prairies
D.mountains
Answers
Answer:
Mountains
Explanation:
Mountains are colder than the lower elevations. When humid air enters a cooler region, the saturated air begins to cool and this reduces the ability of the air to maintain the evaporated water is the gas state. Molecules of water have reduced enerfy at the cooler temperatures. They will slow down and coalesce with other water molecules to form small droplets of water. The atmoshere cannot hold these heaevier droplets and they begin to fall (i.e., rain).
One migh ask why does the air temperature drop at higher altitudes? Heat rises, so why shouldn't it be warmer on top a mountain, compared to the valley. The reason is that the atmosphere becomes less dense the further from Earth's center on gets. This less dense air has a lower water saturation point, so it rains.
URGENT
Answer the following questions in 1 paragraph. Your paragraph must contain at least 4 complete sentences.
What do you know about elements that are metals, nonmetals, and metalloids?
Where is each type of element found on the Periodic Table of Elements?
What kind of luster does each type of element have?
How well do metals, nonmetals, and metalloids conduct electricity?
Which type of element is your favorite? Why?
Answers
Answer:
Metal is a material that is hard, a conductor of heat and electricity, and is malleable and ductile, meaning it can be shaped and drawn into wires. Non metals are chemical elements that do not have metallic properties; they are not conductors of heat or electricity, they are soft, not ductile or malleable etc. Metalloids have properties of both metals and non metals, for example they are not good conductors but can still do it, and are brittle and break easy.
Metals are found on the left side, non metals are on the right, and metalloids are in between.
Metals are lustrous and shiny. Non metals are not usually lustrous, excluding diamond etc. , and metalloids are lustrous as well, like metals.
Metals are excellent conductors, non metals cannot conduct, and metalloids can do it to some extent.
My favorite is metal, as they are the most useful due to their properties like conductivity, malleability and daily uses, and also as they are shiny.
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Hello!
On the periodic table of elements there are metals, nonmetals, and metalloids. The largest part of the periodic table consists of metals at 75%, these metals are then divided into different groups. When at room temperature each of the metals are solid besides mercury which becomes a liquid. Nonmetals are either a gas such as hydrogen. oxygen, nitrogen, or a solid such as sulfur, and carbon. Nonmetals are also not the best conductors of electricity or heat. Metalloids are an element of the periodic table which are intermediate between the nonmetals and metals which I have mentioned before. Each element which is found in the Periodic Table are organized in a certain manner. Each box has an element which contains an atomic number, mass, symbol, and sometimes a name to go along with it. Each type of element contains a silvery-white luster. As stated above nonmetals are not the best conductors of electricity however metals and metalloids are good conductors of electricity. My favorite element is copper because it is the only metal besides gold that's coloring isn't naturally grey or silver. Besides the color being unique this element has been used by humans for over 8,000 years making it the oldest metal object found in the middle east.
Hope this helps!
Calculate the mass of water needed to prepare 45 g of salt solution if the salt content in the solution is 12%.
Answers
The mass of water needed to prepare 45 g of salt solution if the salt content in the solution is 12% is 330g.
The solute is the thing that needs to dissolve, and the solvent is the thing that needs to dissolve it. With a wide variety of solutes and solvents, solutions can be created. We are aware of a wide range of solutions.
Given,
Mass of the salt solution (Solute) = 45g
salt content in the solution = 12%
Let Mass of water = x
Total mass of solution = 45 + x
Concentration of solution = Mass of solute / Mass of Solution × 100
⇒ 12 = 45 / 45 + x × 100
⇒ 12/100 = 45 / 45 + x
⇒ 0.12 = 45 / 45 + x
⇒ 0.12 (45 + x) = 45
⇒ 5.4 + 0.12x = 45
⇒ 0.12x = 45 - 5.4
⇒ x = 330g
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During a laboratory activity, a student places 21.0 mL of hydrochloric acid solution, HC1(ag),
of unknown concentration into a flask. The solution is titrated with 0.125 M NaOH(ag) until the
acid is exactly neutralized. The volume of NaH(ag) added is 18.5 milliliters. During this
laboratory activity, appropriate safety equipment is used and safety procedures are followed.
Answers
The presence of the ions in the HCl would make the solution to conduct electricity.
Why does HCl solution conduct electricity?Because it separates into ions (H+ and Cl-) when hydrochloric acid is dissolved in water, HCl (hydrochloric acid) solution conducts electricity. The electric charge of the H+ and Cl- ions allows them to travel and convey current across the solution.
The dissociation constant (Ka) of HCl describes how much of the compound separates into ions depending on the concentration of the solution. A higher HCl concentration will produce more ions, which will increase conductivity.
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what influence does the presence of alloying elements (other than carbon) have on the shape of a hardenability curve?
Answers
The presence of alloying elements, other than carbon, can have a significant influence on the shape of a hardenability curve. Hardenability refers to the ability of a material to be hardened by heat treatment, specifically through quenching.
Alloying elements can affect the hardenability curve by altering the critical cooling rate required for full martensitic transformation, which determines the depth and hardness of the hardened layer.
These elements can promote the formation of different microstructural phases, such as carbides or intermetallic compounds, that can impede or facilitate the transformation process.
Some alloying elements, such as chromium, molybdenum, and vanadium, have a hardening effect and tend to shift the hardenability curve to the right, indicating a slower cooling rate required for full hardening.
On the other hand, elements like nickel and manganese have a softening effect and shift the curve to the left, indicating a faster cooling rate for hardening.
The specific influence of alloying elements on the hardenability curve depends on their chemical composition, concentration, and interaction with other elements in the alloy.
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what is the IUPAC name to this structure?
Answers
1,3-dichloro, 4-ethyl, 8-methyloctone
not sure honestly haven't seen a compound like this before.
Although a scientific theory is well supported and widely accepted, what might cause it to change? HELPPP
a new evidence
b scientific law
c indivial claim
D a scientific model
Answers
the answer would be A, New Evidence.
Answer:
d
Explanation:
What is the relationship between CO2 and O2 for sea urchins?
Answers
The relation between CO₂ and O₂ for sea urchins is impacted by the rise in carbon dioxide and oxygen is absorbed from the water.
The exoskeleton of sea urchins, which are found in the ocean, is comprised of calcium carbonate. They create calcium carbonate by absorbing the carbon dioxide from the water. As waste, they discharge carbon dioxide out of the anus.
The sea urchin takes its oxygen from the water. In the canals, oxygen diffuses. Oxygen diffuses into the cells from canals. The ocean's pH may rise as a result of the increased carbon dioxide. A higher pH has a deleterious impact on the calcification process. Therefore, the increased carbon dioxide has an impact on how the larvae and adults of sea urchins calcify.
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Prove that: F = Gm₁m₂ /d^2
Answers
Answer:
hope it helps
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What is technology?
A. The steps that engineers go through to create a product.
B. An understanding of something new.
C. Something created using science for use by society.
D. A method that is used to solve problems.
SUBMIT
Answers
suppose and is the counter-clockwise oriented sector of a circle centered at the origin with radius and central angle . use green's theorem to calculate the circulation of around .
Answers
To calculate the circulation of a vector field around a counter-clockwise oriented sector of a circle centered at the origin with a given radius and central angle, we can use Green's theorem.
Green's theorem relates the circulation of a vector field around a closed curve to the double integral of the curl of the vector field over the region enclosed by the curve. In this case, we are interested in calculating the circulation of the vector field around the sector of the circle. The circulation of a vector field around a closed curve is given by the line integral of the vector field along the curve. Using Green's theorem, we can convert this line integral into a double integral over the region enclosed by the curve. To apply Green's theorem, we need to calculate the curl of the vector field. Once we have the curl, we can evaluate the double integral over the sector region to find the circulation. The specific calculations depend on the given vector field and the parameters of the sector, such as radius and central angle. By applying Green's theorem and performing the necessary calculations, the circulation of the vector field around the counter-clockwise oriented sector of the circle can be determined.
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Hydrogen bonds are very stable and give water specific properties. Select two properties of water that are due to hydrogen bonds.
Answers
Answer:
Due to the extensive hydrogen bonding, water has some emergent properties that impact life on Earth in many ways. These include: Cohesion, Adhesion, High surface tension, High specific heat, High Heat of vaporization, and the fact that ice floats (Ice is less dense as a solid than liquid water).
How do solar panels create an electric force field and generate an electric current?
Answers
Answer:
Sunlight hits the solar panels, and creates an electric field. The electricity generated flows to the edge of the panel, and into a conductive wire. The conductive wire brings the electricity to the inverter, where it is transformed from DC electricity to AC, which is used to power buildings.
Answer:
Sunlight hits the solar panels, and creates an electric field. The electricity generated flows to the edge of the panel, and into a conductive wire. The conductive wire brings the electricity to the inverter, where it is transformed from DC electricity to AC, which is used to power buildings.
Explanation:
hope this help
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mothymol blue is a ph indicator. under basic conditions, it is a royal blue color. it is green when the ph is neutral and yellow in acidic conditions. see this bromothymol blue color chartlinks to an external site.. based on this information and what you learned about the bicarbonate buffer systemlinks to an external site. in lab 5, why did the color of the solution change when the person blew into the tube? answer:
Answers
The color of the solution changed when the person blew into the tube because blowing into the tube introduced carbon dioxide, which reacted with water to form carbonic acid.The indicator used in this experiment is Bromothymol blue.
Bromothymol blue is a pH indicator. It is a blue solution that turns yellow when the pH drops to 6 or less. When the pH rises to 7.6 or above, it turns green. Bromothymol blue has a pKa of 6.3. The buffer system used in this lab is the bicarbonate buffer system. The bicarbonate buffer system maintains the pH of the blood in humans. The system works by shifting the equilibrium between carbon dioxide, bicarbonate ions, and carbonic acid.
When carbon dioxide is produced in the body, it diffuses into the blood and reacts with water to form carbonic acid. The carbonic acid then dissociates to form bicarbonate ions and hydrogen ions. The bicarbonate ions act as a buffer by reacting with any excess hydrogen ions to form carbonic acid, which can then dissociate to form more bicarbonate ions.
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A squirrel running up a tree and sitting on a branch shows what kind of
energy conversion?
A. Chemical potential energy converting to kinetic energy
B. Gravitational potential energy converting to heat energy
C. Heat energy converting to kinetic energy
D. Kinetic energy converting to gravitational potential energy
Answers
Answer:
d
Explanation:
its right to be sydinachiondical
Answer:
D. Kinetic energy converting to gravitational potential energy.
APEX
For the balanced equation shown below, how many moles of N2 will react with the 0.3034 moles of Mg.
3Mg + N2 --> Mg3N2
**i think it needs to be rounded to the tenth
Answers
Answer:
0.1 moles of N2 will react with 0.3034 moles of Mg.
Explanation:
\(\sf{balanced \ eqaution = 3Mg + N2 \rightarrow Mg3N2}\)
0.3034 moles of Mgusing molar ratio:
3Mg : N2
3 : 1
moles of N2:
\(\hookrightarrow \sf\frac{0.3034 }{3} *1\)
\(\hookrightarrow \sf 0.10113 \ moles \ of \ N2\)
What is the percent change when an iodine atom (I) becomes an ion (I-)?
Answers
Need help ASAP please
Answers
Answer:Melting can create steam, kind of like a nukeular plant exept no nukulear rods
2. Exothermic; decreases
3. Endothermic;increases
4. Exothermic; decreases
5. Endothermic; increases
Which of the following organisms typically have more than one form of east of each gene from can mask the appearance another form that form is considered _____ the other form
Answers
Which of the following organisms typically have more than one form of east of each gene from can mask the appearance another form that form is considered dominant the other form,
Are both of an organism's alleles identical when it possesses homozygosity for a given gene?Each gene in each of us has two alleles, or variations. If you inherit two identical copies of a gene, you are said to be homozygous for that gene. In contrast, a genotype with distinct alleles is called a heterozygous genotype. Individuals with recessive characteristics, such as red hair or blue eyes, are always homozygous for that gene.
if a trait has two equally expressed alleles and none can prevent the expression of the other allele This is an illustration of codominance, a genetic phenomena in which the expression of two alleles (differing variants of the same gene) within an organism is equal. The features linked to each allele are therefore displayed concurrently.
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Hi , can you help me to find PBr3 Electron Count , please!!!
Answers
If we look at the periodic table we will see that P belongs to group 15 or 5A. That means that it has 5 valence electrons.
Br belongs to 17 or 7A. That means that it has 7 valence electrons.
Our molecule is PBr₃. One molecule of it has 1 atom of P and 3 atoms of Br. Each atom of Br has 7 valence electrons and the atom of P has 5 valence electrons.
Electron count = 1 * 5 + 3 * 7
Electron count = 26 valence electrons.
The begining of this chemical equation represents the starting materials for a chemical reaction
which compound us likely produced by the chemical reaction H20+ SO3
Answers
How many moles are in 9.25E24 formulas units of sodium acetate?
Answers
Answer:
15.37 molesExplanation:
To find the number of moles in a substance given it's number of entities we use the formula
\(n = \frac{N}{L} \\\)
where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question we have
\(n = \frac{9.25 \times {10}^{24} }{6.02 \times {10}^{23} } \\ = 15.365448...\)
We have the final answer as
15.37 molesHope this helps you
Which are the factors that favor SN2 reactions, as described in the lab lecture?
a) Strong nucleophile, good leaving group, polar protic solver, methyl or primary halide
b) Strong nucleophile, good leaving group, polar aprotic solvent, methyl or primary halide. c) Weak nucleophile, good leaving group, polar aprotic solvent, methyl or primary halide d) Strong nucleophile, poor leaving group, polar aprotic solvent, , tertiary halide.
e) Strong nucleophile, good leaving group, polar aprotic solvent, tertiary halide.
Answers
Strong nucleophile, good leaving group, polar aprotic solvent, methyl or primary halide. The correct answer is option: b.
In an SN2 reaction, a nucleophile attacks the carbon atom to which the leaving group is attached, while the leaving group departs from the molecule. The reaction proceeds in a single step, with the nucleophile and leaving group involved in the transition state. A strong nucleophile is required to attack the carbon atom, and a good leaving group is necessary to depart from the molecule. Methyl or primary halides are preferred substrates because they are less hindered, making the attack by the nucleophile easier. Option b is correct.
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WW
Directions: Predict the products for each of the following reactions IN WORDS ONLY.
1. Calcium + Magnesium sulfide →
2. Sodium + Silver chloride →
3. Iron(II) sulfide + potassium →
4. Barium + Aluminum nitrate →
5. Potassium iodide + chlorine →
6. Zinc + Lead(IV) chloride →
7. Silver + sulfuric acid →
8. Barium
+
water →
9. Tin + hydrochloric acid →
10.
Gallium bromide + fluorine →
11.
Water + potassium →
Answers
Chemical reaction has to do with the interaction of substances to form a new substance sometimes involving the release of energy.
What is a chemical reaction?The term chemical reaction has to do with the interaction of substances to form a new substance sometimes involving the release of energy.
The following completes each of the equations shown;
1. Calcium + Magnesium sul-fide → calcium sul-fide + magnesium
2. Sodium + Silver chloride → sodium chloride + silver
3. Iron I I sul-fide + potassium → Potasium sul-fide + iron
4. /Ba/rium + Aluminum ni.trate → /Ba/rium n.itrate + aluminium
5. Potassium iodide + chlorine → Potassium chloride + i.odine
6. Zinc + Lead I V chloride → Zinc I I chloride + lea.d
7. Silver + sul-furic acid →Silver sul-fate + water
8. /Ba/rium + water → /Ba/rium hydroxide + hydrogen
9. T.in + hyd.rochloric acid → Ti.n IV chloride + hydrogen
10.G.allium br-omide + fl-uorine → Ga.lium fl-uoride + br-omine
11.Water + potassium → potassium hydroxide + hydrogen
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S + 6 HNO3 --> H2SO4 + 6 NO2 + 2 H2O
In the above equation, how many moles of water can be made when 29 moles of HNO3 are consumed?
Answers
Explanation:
Using mole-mole relationship
If 6 moles of HNO3 will give 2 moles of H20
That means,
1 mole of HNO3 will give 1/3 moles of H20
Therefore,
29 mole of HNO3 will give [(1/3) x 29] moles
= 29/3 moles
= 9.67 moles
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Why is water so important for life?Why cant other substance made of hydrogen and oxygen like hydrogen peroxide take its place?
Answers
Answer:
Reasons water is important
Imagine earth without water. The soil, with no water in it and nothing growing on it, would be lifeless, dead, collapsed into dust, sand, clay or rock.
-Water consumption helps lubricate and cushion your joints, spinal cord, and tissues. This will help you enjoy physical activity and lessen discomfort caused by conditions like arthritis.
-Water is a main component of saliva. Saliva also includes small amounts of electrolytes, mucus, and enzymes. It’s essential for breaking down solid food and keeping your mouth healthy.
How much heat is absorbed when of C(s) reacts in
the presence of to produce CS2(1) and CO(g)
according to the following chemical equation?
5 C(s) + 2 SO₂(g) → CS₂(1) +4 0(g) AH = 239.9 kJ
Answers
120 KJ of heat is absorbed in this reaction.
As we know
Where W is the provided mass of carbon, which is 30g, n=W/M
M is the carbon molar mass. 30 / 12 = 2.5 moles at 12g/mol.
As a result, the heat absorbed by 2.5 moles of carbon is equal to 120 kJ, or half the heat absorbed by 5 moles of carbon, or 239.9 kJ.
The heat evolved (either emitted or absorbed) during a process that runs at constant pressure is equivalent to the change in enthalpy. The internal energy (U) and pressure-volume product (PV), are both supplied by the equation:
H=U+PV
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Which property would cesium most likely have?
Answers
Answer: The property that cesium most likely would have is being ductile (able to be deformed without losing toughness) due it being a very soft, alkali metal which has a very low melting point of 83.3 °F or 28.5 °C
Answer:
The answer is B. Ductile.
Explanation: Cesium belongs to a category of metals. They are often silver, fairly soft, and very ductile. The answer is right on edge 2020.
Sulfuric acid is produced by first burning sulfur to produce sulfur trioxide gas
2S(s) + 3O2(g) → 2SO3(g)
then dissolving the sulfur trioxide gas in water
SO3(g) + H2O(l) → H2SO4(l)
Calculate the mass of sulfuric acid produced if 1.25 g of sulfur is reacted as indicated in the above equations.
Answers
The mass of sulfuric acid produced is 2.77 g.
To calculate the mass of sulfuric acid produced, we need to use stoichiometry. Here are the step-by-step calculations:
2S(s) + 3O2(g) → 2SO3(g)
SO3(g) + H2O(l) → H2SO4(l)
Calculate the molar mass of sulfur;
S = 32.06 g/mol
Convert the given mass of sulfur to moles;
1.25 g / 32.06 g/mol = 0.039 moles S
Use the mole ratio from the balanced equation to find the moles of sulfur trioxide produced;
0.039 moles S x (2 moles SO3 / 2 moles S) = 0.039 moles SO3
Use the mole ratio from the balanced equation to find the moles of sulfuric acid produced;
0.039 moles SO3 x (1 mole H2SO4 / 1 mole SO3) = 0.039 moles H2SO4
Calculate the mass of sulfuric acid produced;
0.039 moles H2SO4 x 98.08 g/mol = 2.77 g H2SO4
So the mass of sulfuric acid produced is 2.77 g.
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