as you read about in the biofuels unit, using plant-based sources for chemical applications can consume limited land and water resources. above, you listed all the green chemistry principles that applied to your extraction of curcumin from turmeric. what additional information would you need to make a more informed statement about how green your extraction of curcumin from turmeric was?

Holding items in the freezer for too long is not an example of abuse of time and temperature.

Abuse of time and temperature has to do with a situation in which time is used in an improper way or food is not held at the correct temperature ultimately leading to food poisoning.

Holding items in the freezer for too long is not an example of abuse of time and temperature.

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Donwelling  is the process that moves cold, dense water from the ocean surface to the seafloor near the polar regions. Downwelling affect the ocean water around the poles as it brings oxygen - rich water to the ocean floor.

Downwelling occurs when the water on the surface of the sea becomes denser than the water beneath it and so it sinks. ocean water get denser when it gets cola or saltier.Most downwelling happens at the poles.

I f the air was warmer at the poles, then water wold be warmer too.so, without cold water there would be little downwelling.Oxygen in deep sea would have used up  and without strong downwelling , there is no way to replenish oxygen.

Hence, Downwelling affect the ocean water around the poles as it brings oxygen - rich water to the ocean floor.

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Answer:

this is because hot water has more energy than cold water

Answer:

Cellular differentiation

Explanation:

Answer:

cellular differentiation

Explanation:

After 4 minutes, 400 g of the sample would have decayed to 400 g -  (200 g x 4) = 396.2 g.

Protactinium (symbol Pa) is a rare, radioactive, metallic element in the actinide series of the periodic table. It has an atomic number of 91 and an atomic mass of 231. It is found in trace amounts in nature, but can be artificially produced in a nuclear reactor. Protactinium is a soft, silvery-gray metal that is soluble in acids and insoluble in bases. It has a high melting point and is moderately toxic. It has a variety of uses, including as a fuel source in nuclear reactors and in medical research.

After 4 minutes, 400 g of protactinium-234 would have decayed to approximately 396.2 g.
This is because the half-life of protactinium-234 is 1 minute, meaning that in one minute, half of the original amount (200 g) of the sample will decay.

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The chemical substance that the Venus flytrap produces can be thought of as a biological catalyst.

Enzymes can be thought of as biological catalysts.

Plants that break down insects into components the plant can use, like the Venus flytrap, create chemical compounds. Most likely, BIOLOGICAL CATALYSTS are what breaks down the insects' chemical makeup. Among plants, the Venus Flytrap is a carnivore. It possesses a mechanism that captures other species and finally ingests them. It smells bad because of what it consumes. There are various carnivorous plants that use different methods to draw in and capture small animals or species.

This enzyme can be thought of as a biological catalyst that quickens a chemical reaction while maintaining the equilibrium.

The simple fact that the enzymes' actions accelerate up biological reactions within an organism has led to their classification as biocatalysts.

A biological catalyst that aids in turning the insect into material is what the flytrap generated.

As an illustration, consider the salivary enzyme that aids in the conversion of starch to simple sugar.

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Answer:

A.0.51L

B 1.67L

Explanation:

using the formula ;C1V1 =C2V2

15.8×V1=2×4

15.8V1=8

V1=8/15.8

V1=0.51L

apply the same method for B

Answer:

wait so dose it acid burn your body I would say hydrogen but I'm probably wrong tell me if I am

For exothermic reactions, the H is negative and the products have less energy than the reactants. With regard to an endothermic process, the reverse is true.

To put it another way, the bond-breaking process absorbs more heat than the bond-forming process; the products have greater energies than the reactants; and H is a positive number.

The energy involved in chemical processes are the subject of energetics. There are two different kinds of energies: the first is related to thermodynamics and is the energy that is released or absorbed when the reactants transform into the products, and the second is related to the kinetics of the reaction and is the energy that the reacting molecules must have in order to pass the energy barrier for converting to the products.

The reactants' energy level is shown by the beginning point. Keep in mind that each substance contains an inherent energy that is expressed as temperature. The inherent energy of the molecules causes them to move about and collide with other molecules.

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In order to analytically find the transfer function, H(s), of the pH electrode, we can model it as a second-order passive low-pass filter consisting of two RC circuits in series.

The transfer function can be obtained by determining the ratio of the output voltage to the input voltage in the frequency domain.

Let's denote the Laplace transform variable as 's'.

The transfer function H(s) can be expressed as: H(s) = Vout(s) / Vin(s)

For a second-order passive low-pass filter, the transfer function can be written as:

H(s) = 1 / (s + s(R₁C₁ + R₂C₂) + R₁R₂C₁C₂)

Where R₁, R₂ are the resistances in the two RC circuits, and C₁ C₂ are the corresponding capacitances.

Now, let's assume the time constant

τ = R₁C₁ =R₂C₂ = 2 seconds (as given),

we can substitute this into the transfer function:

H(s) = 1 / (s² + 4s + 4)

Simplifying the transfer function further, we can factorize the denominator:

H(s) = 1 / ((s + 2)²)

So, the transfer function of the pH electrode, H(s), is:

H(s) = 1 / ((s + 2)²)

This transfer function represents the relationship between the measured pH (output) and the actual pH (input) of the electrode.

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The complete question should be

The response of a pH electrode can be modeled as a first order or second order passive low pass filter (i.e. two RC circuits in series). A limitation of commercial pH electrodes is their slow response time, which is typically 2 seconds (i.e. = 2 s).

Analytically, find the transfer function, H(s), of this electrode. This transfer function is defined as the measured pH (output) divided by the actual pH (input).

Answer:

2)The particles in a liquid are moving past one another constantly.

3)The particles in gas move freely in all directions.

4)The particles in a solid vibrate in a fixed position.

6)The particles in a gas have few attractions between them.

7)The particles in all states of matter are always moving.

Explanation:

Answer:

Fungi, or D

Explanation:

(a) For the CsCl crystal lattice, the directions that can be approximated as monoatomic linear chains are the [100], [010], and [001] directions.

(b) For the diamond crystal lattice, the directions that can be approximated as diatomic linear chains are the [111], [110], [001], [100], [010], and [011] directions.

In the CsCl crystal lattice, each cesium (Cs) ion is surrounded by eight chloride (Cl) ions, and vice versa. The CsCl lattice can be viewed as a face-centered cubic (FCC) lattice, where Cs ions occupy the lattice points and Cl ions occupy the centers of the unit cells. When considering monoatomic linear chains, we focus on the directionality of the Cs or Cl ions alone.

The [100], [010], and [001] directions in the CsCl crystal lattice correspond to the body diagonals of the unit cell. In these directions, the Cs or Cl ions form a linear chain without any alternating species, making them monoatomic linear chains.

On the other hand, in the diamond crystal lattice, each carbon (C) atom is covalently bonded to four neighboring carbon atoms, forming a tetrahedral structure. The diamond lattice can be viewed as a face-centered cubic (FCC) lattice, with carbon atoms occupying the lattice points.

Considering diatomic linear chains in the diamond lattice, we focus on the alternating arrangement of carbon atoms along specific directions. The [111], [110], [001], [100], [010], and [011] directions in the diamond lattice exhibit such alternating arrangements, forming diatomic linear chains.

In summary, the CsCl crystal lattice can be approximated as monoatomic linear chains along the [100], [010], and [001] directions, while the diamond crystal lattice can be approximated as diatomic linear chains along the [111], [110], [001], [100], [010], and [011] directions.

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The name of the compound which is formed by the combination of nitrogen, carbon and hydrogen atoms is ethylamine.

Compounds are the substances which are prepared by the mixture of different elements.

In the question it is described that first nitrogen atom is attached with 2 hydrogen atoms and one lone pair of electrons as \(\ddot{NH_{2}}\\\). Now with this molecule one carbon atom with two hydrogen atoms are attached (CH₂) and with this carbon atom another carbon atom with three hydrogen atoms are attached as (CH₃).

So obtained compound is NH₂-CH₂-CH₃ named as ethyl amine.

Hence name of the given compound is ethylamine.

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Answer:

The answer is

Explanation:

To solve the question we use the following conversion

That's

1 mmHg \(\cong\) 0.0013 atm

So we have

If 1 mmHg \(\cong\) 0.0013 atm

Then 732 mmHg will be

732 × 0.0013 atm

We have the final answer as

Hope this helps you

1.78 grams of silver can be produced from 1.40 g silver nitrate and excess copper. The balanced chemical equation for the reaction of copper with silver nitrate (use cu2) is as follows: Cu + 2AgNO₃ → Cu(NO₃)₂ + 2Ag

To determine how many grams of silver can be produced from 1.40 g of silver nitrate and excess copper, we first need to calculate the limiting reactant.

The stoichiometry of the reaction is such that 2 moles of silver nitrate react with 1 mole of copper to produce 2 moles of silver. The molar mass of silver nitrate is 169.87 g/mol while that of copper is 63.55 g/mol,

therefore, the number of moles of silver nitrate present in 1.40 g can be calculated as follows:Number of moles of silver nitrate = mass/molar mass= 1.40/169.87= 0.008240 molSimilarly, the number of moles of copper required to react with this quantity of silver nitrate is 0.004120 mol (half of the number of moles of silver nitrate).

Since there is an excess of copper, it will not limit the reaction and hence the limiting reactant is silver nitrate.To calculate the mass of silver produced, we use the molar mass of silver, which is 107.87 g/mol.Mass of silver produced = number of moles of silver x molar mass= 0.01648 x 107.87= 1.78 g

Therefore, 1.78 grams of silver can be produced from 1.40 g silver nitrate and excess copper.

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Ionic reactions take place when two compounds exchange electrons, which can result in the formation of positively or negatively charged ions.

Thus, The redox and precipitation reactions were the main ionic reactions discussed in this article. Different redox reaction-related topics were covered, including oxidation state assignment, the fundamentals of the redox process, and balancing redox reactions.

The article concentrated primarily on the solubility criteria for predicting the development of insoluble precipitates in water for the precipitation reactions.

Thus, Ionic reactions take place when two compounds exchange electrons, which can result in the formation of positively or negatively charged ions. The redox and precipitation reactions were the main ionic reactions discussed in this article.

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Please find the terms with their correct description in the explanation section.

In an aqueous solution, an electrolyte is a material that separates or ionizes into cations (positively charged ions) and anions (negatively charged ions). Depending on how well it ionizes and how much conductivity it has, an electrolyte can be either strong or weak. A non-electrolyte, however, does not conduct electricity or ionize in a solution.

Based on this;

1. Weak electrolyte: Has a medium level of conductivity i.e. partially conducts electricity

2. Strong electrolyte: Contains a complete solute

3. Non-electrolyte: Has little or no conductivity i.e. cannot conduct electricity because it doesn't dissociate into ions.

4. Strong electrolyte: Has the highest conductivity i.e. conducts electricity very well.

5. Strong electrolyte: Contains a completely dissociated solute i.e. the solute of the electrolyte separates into anions and cations completely.

6. Weak electrolyte: Contains a partially dissociated solute i.e. the ions of the solute do not ionize completely in the solution.

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Answer:  C is right

Explanation:  One mole is 6.022 x 10^23 molecules.

Dividing 3.25188 x 10^24 / 6.022 x 10^23 = 5.4 moles

Answer:

formation of zinc sulphate which is soluble

Answer:

lbm/ft³ or psi/ft

Explanation:

The description in the question shows the density to measured is that of gases (upper atmosphere). The density of a gas can be described as the mass of the gas divided by the volume of the gas at a certain temperature and pressure. It's unit can be represented as lbm/ft³ or psi/ft.

NOTE:

"lbm" means "lean body mass" which is a unit for mass or weight and can be described as the pound mass

"psi" means "pound per square inch"; is also a unit for mass or weight

Answer:

a. Ocean currents influence many marine climates.

c. The North Atlantic Drift gives Ireland a warm climate for its latitude.

a & c

brainliest pls

Answer:

beacuse it can form again after melted or destroied

We know; Neurons communicate using both electrical and chemical signals.

What is neuron?

The basic building blocks of the brain as well as nervous system are neurons. They are the cells that receive sensory information from the outside world, send motor commands to our muscles, as well as transform and relay electrical signals at each stage along the way. Beyond that, our interactions with them shape who we are as people. However, our approximately 100 billion neurons can interact closely with other cell types that are generally referred to as glia. Neurogenesis, which can occur in adults, is the process of the brain producing new neurons. Consider a neuron as a tree for an effective analogy. Dendrites, axons, and the cell body, or soma, are the three main components of a neuron.

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The balanced equation for the reaction between aluminum and zinc chloride is 2 Al + 3 ZnCl2 → 2 AlCl3 + 3 Zn.The balanced equation is as follows:

2 Al + 3 ZnCl2 → 2 AlCl3 + 3 Zn

In the given unbalanced equation, we have aluminum (Al) reacting with zinc chloride (ZnCl2). To balance the equation, we need to ensure that the number of atoms on both sides of the equation is equal.

On the left side, we have one aluminum atom (Al), while on the right side, we have two aluminum atoms in aluminum chloride (AlCl3). To balance the aluminum atoms, we place a coefficient of 2 in front of Al on the left side.

Next, we move on to the chlorine atoms. On the left side, we have two chlorine atoms in zinc chloride (ZnCl2). On the right side, we have six chlorine atoms in aluminum chloride (AlCl3). To balance the chlorine atoms, we place a coefficient of 3 in front of ZnCl2 on the left side.

After balancing, we have 2 Al + 3 ZnCl2 → 2 AlCl3 + 3 Zn.

This balanced equation shows that two moles of aluminum react with three moles of zinc chloride to produce two moles of aluminum chloride and three moles of zinc.

In conclusion, the balanced equation for the reaction between aluminum and zinc chloride is 2 Al + 3 ZnCl2 → 2 AlCl3 + 3 Zn.

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answer and explanation

the correct options are A and C

When discussing distance in the solar system,you use Relative Distance.This tells you the space between two objects with location.

D. Relative distance

The relative distance is the distance that you are felt to cover up, taking the time used to obtain there. Distance relative to a particular reference point, typically one in motion.

Relative distance is calculated measuring distance, using metrics such as time, effort, or cost.

In space, Relative distance means how far apart the planets are when compared to each other and the sun.

Thus, the correct option is D.

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The pH of a solution that is 0. 322 m in nitrous acid when acid dissociation constant of nitrous acid is 4 is given by 3.089, option C.

pH is a numerical indicator of how acidic or basic aqueous or other liquid solutions are. The phrase, which is frequently used in chemistry, biology, and agronomy, converts the hydrogen ion concentration, which typically ranges between 1 and 1014 gram-equivalents per litre, into numbers between 0 and 14.

The hydrogen ion concentration in pure water, which has a pH of 7, is 107 gram-equivalents per litre, making it neutral (neither acidic nor alkaline). A solution with a pH below 7 is referred to as acidic, and one with a pH over 7 is referred to as basic, or alkaline.

The concentration of nitrous acid is 0.322 M

The concentration of potassium nitrite is 0.178 M

The acid dissociation constant of nitrous acid is, ka = 4.50 x 10⁻⁴

The Henderson-Hasselbalch equation for an acidic buffer is shown below:

pH = pKa + log\(\frac{[salt]}{[Acis]}\)

pKa = - logKa

pKa = - log(4.50 x 10⁻⁴)

= 3.35

Substitute values in the equation as,

pH = 3.35 + log(0.178/0.322)

= 3.35 + log(0.6077)

= 3.35 + (-0.216)

= 3.09.

Therefore, the pH is given by 3.09.

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Answer:

234.6

Explanation: