A given enzyme works on

a. inhibitors.
b. one type of substrate.
c. one of two possible substrates.
d. no substrate.
e. any number of different substrates.

Reason: Enzymes have specific binding to one specific substrate. For example, the enzyme sucrase only binds to the substrate sucrose.

The statement "Chlorophyll is a pigment that gives plants their green color and is essential for photosynthesis." is TRUE.  It is found in the chloroplasts, which are specialized organelles found within the mesophyll cells of leaves. These cells are located in the middle layer of the leaf, sandwiched between the upper epidermis and lower epidermis.

The mesophyll layer is where most of the photosynthesis occurs in a plant. It contains two types of cells: palisade and spongy. The palisade cells are located near the upper epidermis and are responsible for capturing the majority of the light energy needed for photosynthesis. The spongy cells are located near the lower epidermis and are involved in gas exchange, allowing for the uptake of carbon dioxide and release of oxygen.
Chloroplasts are found in both types of mesophyll cells, but are more abundant in the palisade cells. The chloroplasts contain the chlorophyll pigments that absorb light energy and convert it into chemical energy through photosynthesis. This chemical energy is used by the plant for growth, reproduction, and metabolism.
In summary, chlorophyll is located in the chloroplasts of mesophyll cells in leaves. This allows for efficient photosynthesis and energy production in plants.

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Answer:

Remains unchanged.

Explanation:

The temperature of a gas is a measure of the mean kinetic energy of that gas.  Since the temperatuere remains constant, the kinetic energy remains unchanged.

Answer:

I CANT

Explanation:

Answer:

phisical i think

Explanation:

chemical would be baking powder in a pancake, the pancake would be in turn more brown cause of baking powder mixing with flower.

Two categories of mechanical waves exist: The movement of the particles in a longitudinal wave is parallel to the motion of the energy,

Only through matter can a mechanical wave's energy travel. The medium is the substance through which the wave travels (plural, media). Water, a liquid, serves as the wave's medium in the illustration above. Yet, any state of matter, including a solid, can act as the medium for a mechanical wave.

Radiant energy that moves in waves at the speed of light is known as electromagnetic energy. Radiant energy, electromagnetic radiation, electromagnetic waves, light, or the movement of radiation are other names for it.

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Answer:

When an electron is hit by a photon of light, it absorbs the quanta of energy the photon was carrying and moves to a higher energy state. One way of thinking about this higher energy state is to imagine that the electron is now moving faster, (it has just been "hit" by a rapidly moving photon).

Explanation: pls mark brainliest :))

Answer:

the correct answer is lost of jobs,higher taxes, and elimination of tourist activities

Explanation:

hope you have a blessed day:)

Answer:

the correct answer is lost of jobs,higher taxes, and elimination of tourist activities

Explanation:

thank you for the answer i hope EVERYONE has A BLESSED DAY!!!!!!!!!!!!!!!!!!!!!!

Mg + HCl  → MgCl2 + H2. Salt and hydrogen gas are created when metal and acid combine. Magnesium produces hydrogen gas.

Thus, Salt and hydrogen gas are created when metal and acid combine. Magnesium produces hydrogen gas and magnesium chloride salt when it combines with diluted hydrochloric acid.

The gas produced by the reaction of magnesium with diluted HCl is hydrogen gas. The gas produced by the reaction of magnesium with diluted HCl is hydrogen gas.

The experiment produces very flammable hydrogen gas. No ignition source should be available to students.

Thus, Mg + HCl  → MgCl2 + H2. Salt and hydrogen gas are created when metal and acid combine. Magnesium produces hydrogen gas.

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The incorrect statement about the setup of a voltaic cell is (d) "In voltaic cells, oxidation occurs at the cathode and reduction occurs at the anode."

In a voltaic cell, oxidation actually occurs at the anode and reduction occurs at the cathode. This is because electrons flow from the anode (where oxidation takes place) to the cathode (where reduction takes place). The anode is the electrode where oxidation reactions take place and electrons are released, while the cathode is the electrode where reduction reactions occur and electrons are gained. To explain further, in a voltaic cell, the anode is the electrode where the oxidation half-reaction occurs. Oxidation involves the loss of electrons and the anode serves as the source of electrons. These electrons then flow through an external circuit to the cathode. At the cathode, reduction takes place, which involves the gain of electrons. The cathode acts as the site where reduction half-reactions occur, consuming the electrons that flow from the anode. Therefore, the correct statement should be: "In voltaic cells, oxidation occurs at the anode and reduction occurs at the cathode."

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The thymine nucleotide is required for DNA synthesis.

The only pyrimidine that requires folate for its synthesis is thymine. Folate is required for the incorporation of carbons 2 and 8 into all purine molecules. The synthesis of creatine phosphate and of phosphatidylcholine does not require folate. Folate deficiencies during pregnancy can lead to neural tube defects in the fetus.

Deoxyribonucleotide synthesis requires ribonucleotide reductase which uses thioredoxin and does not require a folate derivative. Genetic variability of drug-metabolizing enzymes and drug transporters has been related to interindividual variations in pharmacokinetics and pharmacodynamics. Such differences might also result in variants in drug efficacy safety and remedy effects in some of the often prescribed drugs3.

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Answer:

Forests

Explanation:

Photosynthesis removes carbon dioxide naturally and trees are especially good at storing carbon removed from the atmosphere by photosynthesis.

Answer:

Trees / Forests / Rain forests

Explanation:

Trees remove CO₂ from air because they need it for their cellular respiration.

Answer: b

Explanation: alpha decay or particle consist of two protons and two neutrons hence it is a helium nucleus.

An alpha particle \(\binom {4} {2}\)He is produced in alpha decay reactions, while the parent nucleus' atomic number and mass number drop by 2 and 4 correspondingly.

Therefore, the final answer is "Option B".

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If you are up on Eagle Mountain you weigh more than when you travel the 15 miles to get to Lake Superior's shore.

The weight of an object is the product of the mass and the acceleration due to gravity. The acceleration due to gravity of an object is the impact owing to the fact that the object lies within the earth's gravitational field.

If you are up on Eagle Mountain you weigh more than when you travel the 15 miles to get to Lake Superior's shore.

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Answer:

the way plants eat

Explanation:

Answer:

The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

The ratio of octene to oxygen is 1:12.

To determine the ratio of octene (C8H16) to oxygen (O2) in the given reaction, we need to examine the balanced chemical equation. However, the equation you provided does not seem to be balanced. The coefficients for each compound must be determined to achieve a balanced equation before we can calculate the desired ratio.

Assuming you meant the combustion reaction of octene, a balanced equation would be:

C8H16 + 12O2 → 8CO2 + 8H2O

From the balanced equation, we can see that for every 1 mole of octene (C8H16), we require 12 moles of oxygen (O2) to completely react.

This means that for every 1 mole of octene, we need 12 moles of oxygen to fully combust the octene and produce the corresponding amounts of carbon dioxide (CO2) and water (H2O) as shown in the balanced equation.

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(a) Intermolecular forces present: dipole-dipole and dispersion.CH3Br has a higher boiling point than CH3F.(b)Intermolecular forces present: dipole-dipole, hydrogen bonding, and dispersion.CH3CH2OH has a higher boiling point than CH3OCH3. (c) Intermolecular forces present: dispersion.C3H8 has a higher boiling point than C2H6.

(a) CH3Br or CH3F

Intermolecular forces present: dipole-dipole and dispersion forces.

CH3Br has a higher boiling point than CH3F due to the larger size and greater polarizability of the Br atom, which results in stronger dispersion forces.

(b) CH3CH2OH or CH3OCH3

Intermolecular forces present: dipole-dipole, dispersion, and hydrogen bonding.

CH3CH2OH has a higher boiling point than CH3OCH3 due to the presence of hydrogen bonding between the hydroxyl groups.

(c) C2H6 or C3H8

Intermolecular forces present: dispersion forces.

C3H8 has a higher boiling point than C2H6 due to the larger size and greater polarizability of the molecule, which results in stronger dispersion forces.

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Answer:

V₂ = 1223.2 mL  

Explanation:

Given data:

Pressure of gas = 820.4 mmHg

Initial volume of gas = 900.0 mL

Initial temperature = 25.0°C (25+273=298K)

Final temperature = 132.0°C (132.0 +273 = 405 K)

Final volume = ?

Solution:

Solution:

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

V₂ = V₁T₂/T₁  

V₂ = 900.0 mL × 405 K / 298 k

V₂ = 364500 mL.K / 298 K

V₂ = 1223.2 mL  

Cooling the reaction mixture before adding water helps to prevent premature precipitation of the product and ensures better control of the precipitation process, yielding a higher-purity product.

To avoid early or uncontrolled precipitation, which can result in reduced product purity, the reaction mixture is frequently cooled before water is added to precipitate the product. As a result of the product's reduced solubility in the solvent and slowed molecular mobility, cooling increases the likelihood that it may precipitate.

Additionally, cooling might lessen adverse effects that could happen at higher temperatures. In many chemical processes, it enables greater control of the precipitation process, resulting in a larger yield and a purer product.

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The ionic strength of a 0.00467 M NaOH solution is  0.00467.

To determine the ionic strength of a 0.00467 M NaOH solution, we must consider the dissociation of NaOH into its ions: Na⁺ and OH⁻. Since NaOH completely dissociates into one Na⁺ ion and one OH ion, the concentration of each ion is also 0.00467 M. The ionic strength, µ, is calculated using the following formula:

µ = 0.5 × Σ(ci × zi²)

where ci is the concentration of the ion and zi is the charge of the ion. For NaOH:

µ = 0.5 × [(0.00467 M × (+1)²) + (0.00467 M × (-1)²)]

µ = 0.5 × (0.00467 + 0.00467)
µ = 0.5 × 0.00934

µ = 0.00467

Thus, the ionic strength of the 0.00467 M NaOH solution is 0.00467.

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Rs can be solved by rearranging the equation as Rs = Ms / (Cw.t).

Rs is the sampling rate of a chemical which can be derived from field measurements of chemical concentrations of spot water samples taken before, during, and after deployment or through laboratory calibration experiments. The equation to calculate the concentration of chemical in a water body (Cw) after an exposure time is given by Cw = Ms / Rs.t.

To solve for Rs, we need to rearrange the equation as follows:
Cw.t = Ms / Rs
Rs = Ms / (Cw.t)

Therefore, we can solve for Rs by dividing the mass of chemical on the sampler (Ms) by the product of concentration of chemical in the water body (Cw) and the exposure period (t). This rearranged equation can be used to calculate the sampling rate of a chemical in a water body in the field or in the laboratory calibration experiments.

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Answer:

sorry but dorks dont learn maths

Explanation:

just kidding no offense but i think umm 1st one will stay same

i searched google

H₂S₂(g) is expected to have higher entropy than H₂S₂(l). CsBr(s) is expected to have higher entropy than Sro(s). H₂O(l) is expected to have higher entropy than H₂O₂(l). SO₃(g) is expected to have higher entropy than SO₃(s).

The entropy of the substance is determined by the amount of randomness and disorder it has. The higher the entropy, the greater the randomness of the substance. At the same temperature and pressure, a pure solid has a lower entropy than a pure liquid, which in turn has a lower entropy than a pure gas. The entropy of a substance is determined by its physical state, molecular structure, and the quantity of the substance.
H₂S₂ is a chemical compound with two sulfur atoms and two hydrogen atoms. The state of H₂S₂(g) is a gas, and H₂S₂(l) is a liquid. Since the gas state is more disordered than the liquid state, H₂S₂(g) is expected to have higher entropy than H₂S₂(l).
Both CsBr(s) and Sro(s) are in the solid-state. However, CsBr(s) has a higher entropy than Sro(s) because it has more molecules. This means that CsBr(s) has a greater degree of randomness and disorder than Sro(s).
H₂O(l) and H₂O₂(l) are both liquid states, but H₂O(l) has higher entropy because it has more degrees of freedom. H₂O(l) can rotate and translate freely, while H₂O₂(l) has a rigid structure that does not allow for the same degree of movement.
SO₃(g) is in the gaseous state, while SO₃(s) is in the solid-state. At the same temperature, the entropy of SO₃(g) is greater than that of SO₃(s) because the gas state is more disordered than the solid-state.

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Acrylonitrile  and ethyl acetate can not be separated by simple distillation since they have the same boiling point.

Distillation is a separation technique in chemistry which can be applied only when the substances to be separated have different boiling points. The method relies on the difference between the boiling points of the components of a mixture in order to achieve separation.

Whereby Acrylonitrile and ethyl acetate have the same boiling point: 77.2°C, separation by distillation becomes impossible because the two substances are collected together.

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Explanation: particles are not attracted or repulsed by each other because they are so far apart that the force of attraction or repulsion is highly negligible

Answer:

F = 130 N

Explanation:

We use the formula F = ma  

∴ F is force, m is mass and a is acceleration

F = ?

m = 65 kg

a = 2 m/\(s^{2}\)

Substituting the values in the equation:

F = 65 x 2

F = 130 N

Answer:

300 K

General Formulas and Concepts:

Atomic Structure

Gas Laws

Ideal Gas Law: PV = nRT

Explanation:

Step 1: Define

Identify variables

[Given] n = 0.5 mol N₂

[Given] V = 6 L

[Given] P = 2 atm

[Given] R = 0.0821 L · atm · mol⁻¹ · K⁻¹

[Solve] T

Step 2: Solve for T

Step 3: Check

Follow sig fig rules and round. We are given 1 sig fig as our lowest.

292.326 K ≈ 300 K

(-25C / 1) 1 electron divided by 1.60x 1019 C results in 1.6 x 1020 electrons. Water has a mass of 18 g per mole. (1 / (1.6 x 1020 electrons) 1 molecular to 1 electron (6.02 x 1023 molecules/one mole) 4.8 x 103 g = (18g/mole)

It is possible for an electron, a negatively charged subatomic particle, to be either free or bonded to an atom (not bound). An electron is attached to an atom and is one of the three major types of particles in an atom.

A positively charged atom's structural constituents are called electrons. An atom's total negative charge of its electrons equals the positive charge of its protons in the atomic nucleus.

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Answer:

Explanation:

The number of molecules can be found by using the formula

N = 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 = 4.8 × 6.02 × 10²³

We have the final answer as

Hope this helps you

The fraction of a piece of Aluminum will be submerged when it floats in mercury is 20%

density = 2.7 g/cm³,

mercury 13.6 g/cm³.

2.7/13.6 = 0.20 = 20% aluminum submerged

80%  above surface of mercury.

Chemical element aluminum (Al), also spelled aluminum, belongs to the main Group 13 (IIIa, or boron group) of the periodic table. It is a light silvery white metal. The most prevalent nonferrous metal and the most abundant metallic element in the crust of the Earth is aluminum. Aluminum never appears in nature in the metallic form due to its chemical activity, but its compounds are found in varying degrees in almost all rocks, plants, and animals. Only silicon and oxygen are more abundant in the outer 16 km (10 miles) of the Earth's crust, where aluminum concentrated. Aluminum makes up about 8% of the crust's weight. The Latin word alumen, which is used to describe potash alum, or aluminum potassium sulphate, KAl(SO4)212H2O, is where the name aluminum originates.

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Silver chloride produced : = 46.149 g

Limiting reagent : CuCl2

Excess remains := 3.74 g

Reaction

silver nitrate + copper(II) chloride ⇒ silver chloride + copper(II) nitrate

Required

silver chloride produced

limiting reagent

excess remains

Solution

Balanced equation

2AgNO3 (aq) + CuCl2 (s) → 2AgCl(s) + Cu(NO3)2(aq)

mol AgNO3 :

= 58.5 : 169,87 g/mol

= 0.344

mol CuCl2 :

=21.7 : 134,45 g/mol

= 0.161

mol ratio : coefficient of AgNO3 : CuCl2 :

= 0.344/2 : 0.161/1

= 0.172 : 0.161

CuCl2  as a limiting reagent

mol AgCl :

= 2/1 x 0.161

= 0.322

Mass AgCl :

= 0.322 x 143,32 g/mol

= 46.149 g

mol remains(unreacted) for AgNO3 :

= 0.344-(2/1 x 0.161)

= 0.022

mass AgNO3 remains :

= 0.022 x 169,87 g/mol

= 3.74 g

Answer:

The answer is "Option b".

Explanation:

please find the complete question in attached file.

Law on Beer Lapers is given in the form the following formula  

A = \(\varepsilon\) bc

A = absorbance

\(\varepsilon\) = coefficient of molar extinction

b = luminaires moving in solution

c = Solution concentration

Absorbing power dependency on \(\varepsilon\) is proved by adjusting its compound's absorption actions since \(\varepsilon\) (extinction coefficient) is now a compound essential aspect thus only dependent on chemical structure

Its direction or concentrations of its chemical weren’t shown by optical emission in \(\varepsilon\) (extinction coefficient) and therefore choice a and c are incorrect.