fermentation products can include commonly known compounds such as lactic acid and ethanol, but many other products like butanol, acetic acid, and succinic acid are also possible because

The petal of rose has different kinds of pigments like anthocyanins, carotenoids which give them the colors.

What are Anthocyanins?

Anthocyanins are the pigment that produces red color in the roses. They belong to Flavonoids family.

The pigments in a rose's petals give it its color. These pigments mostly consist of carotenoids and anthocyanins. Bright yellow, orange, and red pigments like those in lemons, oranges, and tomatoes are made by carotenoids. They are contained in structures called plastids, which are a component of the cytoplasm of plant cells. They are therefore steady and largely unaffected by the environment or the health of the plant. Deep red, magenta, purple, and blue colors are made of anthocyanins. They are transported via the sap of the plant and are water soluble. They are far less stable and more susceptible to external variables because they are in a fluid environment.

According to research, a bloom's anthocyanin content and sap pH fluctuate as a flower develops from a bud to a bloom. The pH of the sap increases with bloom aging and anthocyanin content decreases. As those who grow hydrangeas are aware, more acidic conditions prefer the pink/red end of the color spectrum while high alkaline levels produce blue colorations. As a result, as your rose bloom ages and its pH rises, the red will tend to lean toward the darker, bluer side of the spectrum. When a flower is in bloom, anthocyanin levels are still high, but they start to drop off swiftly as the blossom fades.

To know more about anthocyanin, click the following link

https://brainly.com/question/15609513

#SPJ9

Answer:

0.76moles of sucrose

Explanation:

1 mol = 6.022 x 10^23 molecules

4.6 x 10^23 molecules = X x 6.022 x 10^23

X = 0.7639

X = 0.76moles

Water striders use the high surface tension of water and long, hydrophobic legs to help them stay above water.

Surface tension:

The tension of the surface film of a liquid is caused by the attraction of the particles in the surface layer by the bulk of the liquid, which tends to minimize surface area.

The force responsible for surface tension is the cohesive force that is present between the molecules of the liquid, the surface tension of water is high this is just because there is a hydrogen bond present between the molecules of water.

As we know that the legs of a water strider are long and slender, allowing the weight of the water strider's body to be distributed over a larger surface area.

Therefore the water strider can land on the surface of the water because of the surface tension of the water.

To know more about the surface tension refer to the link given below:

https://brainly.com/question/138724

#SPJ4

A large net force of 280N  is required to accelerate a 2000 kg suv from rest with an acceleration of 0.14m/s2 .

According to Newton’s 2nd law of motion,  force is  equal to the change in momentum per change in time.Acceleration of an object depends on the mass of the object and the amount of force applied.

            Force=mass* acceleration

Here, mass is equal to 2000 kg and acceleration is equals to 0.14m/s/s.putting these values,

      F= ma

     F= 2000kg * 0.14 m/s2

        = 280 kg m/s2

        =280N

So, 280N of force is required.

To learn more about newton's 2nd  law please visit:

https://brainly.com/question/25545050

#SPJ4

Answer:

Covalent bonds usually occur between nonmetals.

Explanation:

The equilibrium concentration of ICl is 17.97M

Equilibrium concentration is when both reactant and product are in concentration which does not change with time any more

Here given data is

Volume =  2.00L

Number of moles of ICl = 0.440 moles

Kc = 0.110

Balanced chemical equation

2ICl ⇄ I₂ + Cl₂

We have to calculate equilibrium concentration of icl = ?

Calculations for initial concentration

ICl =  0.440 moles/ 2.00L = 0.22M

I₂ = 0M

Cl₂ = 0M

Concentration of equilibrium

ICl = (0.22M - 2x)M

I₂ = xM

Cl₂ = xM

Calculation for Kc

Kc = 0.110 = [I₂][Cl₂]/[ICl]

0.110 = x²/ (0.22M-2x)²

0.332 = x(0.22M-2x)

x = 0.332×(0.22M-2x)

x = 0.0730 - 0.664x

0.664x = 0.0730

x = 0.664/0.0730

x = 9.095

The equilibrium concentration will

[I₂] = [Cl₂] = 9.095M

[ICl] =  0.22M - 2(9.095)

[ICl] = 17.97M

Equilibrium concentration of ICl is 17.97M

Know more about interhalogen reactivity

https://brainly.com/question/28298120

#SPJ4

Helium moves more quickly on average than argon.

How much thermal energy does helium have compared to argon?

Helium has a lower thermal energy than argon does.

Explanation:

Due to the smaller mass of helium atoms in comparison to argon atoms, their average speed is higher under the given conditions. An atom's average speed is inversely related to its mass. While the average speed of an atom reduces as the mass of the atom grows, the opposite is true if the mass of the atom decreases.

To learn more about helium from the given link.

https://brainly.com/question/16998244

#SPJ4

The  MgSO₄ (magnesium sulfate) remove water molecules entrapped in biodiesel. Ion dipole are the interactions that allow this to work.

Diesel fuel can be replaced by domestically produced, clean-burning biodiesel. The use of biodiesel as a vehicle fuel increases energy security, benefits the environment and the air we breathe, and enhances safety. Animal fats, used cooking oils, yellow grease, and vegetable oils can all be used to make biodiesel. The process of transesterification, which turns fats and oils into biodiesel and glycerin, produces the fuel. The electrostatic attraction between an ion and a dipole-containing neutral molecule produces an attractive force known as the ion-dipole force. typically located in solutions. important in particular for ionic compound solutions in polar liquids.

Learn more about biodiesel here:

https://brainly.com/question/27438595

#SPJ4

The statements that collectively explain why radical bromination of 2-methyl pentane is

So the correct option are A, C, and D.

Radical Bromination is described as a process in which a free-radical chain mechanism introduces bromine into a molecule.

The bromine radical removes a hydrogen atom from the methane and because the hydrogen atom only needs to bring one electron with it to form a new bond to the bromine, and so one electron is left behind on the carbon atom.

In the creation of radicals, if  bromine (Br2) is treated with light (hν) it comes to hemolytic cleavage of the Br-Br bond.

Learn more about radical bromination at: https://brainly.com/question/20372187

#SPJ1

Complete question:

Which statements collectively explain why radical bromination of 2-methylpentane selectively gives the product shown? select all that apply.

a. the rate-determining step is endothermic, and so the most stable alkyl radical forms fastest.

b. the rate-determining step is exothermic, and so the least stable alkyl radical forms fastest.

c. The product shown arises from the most stable radical intermediate

d. The rate-determining step in the reaction is abstraction of a hydrogen atom from 2-methylpentane

e. The rate-determining step in the reaction is addition of a hydrogen atom from 2-methylpentane

If the work done by the expanding gas equals the heat added, despite the constant energy of the system of the gas, the temperature can stay constant.

An ideal gas is one where there were no inter - molecular attraction forces and all collisions involving atoms and molecules are entirely elastic. It can be seen as a group of perfectly nearly spherical that collide but do not otherwise interact with one another.

Temperature doesn't vary, but pressure and volume do. The energy content will not change throughout this procedure because there is no exchange of labor or heat with the environment. As a result, a perfect gas's internal energy depends solely on its temperature.

To know more about ideal gas visit:

https://brainly.com/question/28257995

#SPJ4

The function of propylene glycol and methyl oleate in a hand cream is as a thickening agent and as an emulsifier and skin softener used in cosmetics.

Propylene Glycol

Propylene glycol is a petroleum derivative product that has no odor and is colorless. This product is one of the products used as a raw material for making cosmetics. The function of propylene glycol is as a thickener for cosmetics such as facial moisturizers, facial cleansers, and other cosmetics that are liquid.

Methyl Oleate

Methyl Oleate is a long-chain saturated fatty acid found naturally in various animal and plant fats. Methyl oleate is solid and white in color, and has a mild aroma and is sometimes crystalline. The content contained in this product is often used as raw material for cosmetic products. The function of methyl oleate is as an emulsifier and lubricant that can soften the skin, and help keep cosmetic products from separating. One important function of methyl oleate in cosmetic products is to create a moist, slippery and unbreakable texture.

Learn more about propylene glycol and methyl oleate on https://brainly.com/question/10370589

#SPJ4

This is due to the methyl-requiring acid produced.

Methyl red test is considered positive when the culture medium turns red after the addition of methyl red, because of a pH at or below 4.4 from the fermentation of glucose.

methyl red test is considered negative when the culture medium gives yellow colour after the addition of methyl red.

when the bacteria are grown in a broth medium containing glucose .if the bacteria has the ability to utilise glucose with the production of a stable acid,

the colour of methyl red changes from yellow to red when added to broth culture.

In glucose carbohydrate broth 4 mol of acids,1 mole of ethanol, and 1 mol of CO2 are produced. the large quantity of acid produced causes a significant decrease in pH which gives red colour as a result.

learn more about the pH here;

https://brainly.com/question/172153

#SPJ4

Answer:

Volume is defined as the space occupied within the boundaries of an object in three-dimensional space. It is also known as the capacity of the object.

Time is the continued sequence of existence and events that occurs in an apparently irreversible succession from the past, through the present, into the future.

Recrystallization ; 25 mL of solvent are needed at 100 oC to dissolve 100 mg of the chemical. 75 mg of the chemical will precipitate at 0 oC while 25 mg will remain in solution.

The chemical compound para nitroacetanilide, commonly known as 4-nitroacetanilide, is a nitroacetanilide derivative made from acetanilide and a nitrating combination. A trace of ortho product also forms along with the para product.

Through nitration, the chemical molecule p-nitroacetanilide is created from acetanilide. P-nitroacetanilide is created when acetanilide is treated with a nitrating mixture, which is a combination of nitric acid and sulfuric acid. O-nitroacetanilide is also generated as a small byproduct along with p-nitroacetanilide. It is quite simple to separate p-nitroacetanilide through crystallization since o-nitroacetanilide is highly soluble in alcohol.

Because ethanol is endlessly cosoluble with water and has high dissolving properties for many organics, ethanol and water mixtures are frequently utilized. Many organic compounds' solubilities can be drastically and quickly decreased by the addition of water, which can cause crystallization.

The solution may become too diluted for crystals to form if you add too much solvent. The flask needs to be gently cooled, first at room temperature and then in cold water. Impurities will be captured by a hastily formed crystal's lattice. Smaller crystals will be produced as a result.

To know more about Recrystallization please click here ; https://brainly.com/question/28588509

#SPJ4

Boron and beryllium sometimes have less than 8 electrons around them, Sulphur sometimes has more than 8 electrons around it and odd electron species are reactive because of their instability and their examples ate NO, NO₂ and ClO₂.

a. The example of the atoms which sometimes have fewer than 8 electrons around them are Boron and beryllium.

b. The example of the atom with sometimes have more than 8 electrons around them is Sulphur.

c. The odd electrons species generally are very reactive and uncommon because there highly unstable.

To achieve stability the readily reacts with other compounds in order to complete their octet and achieves stability. They are very uncommon because when they are formed, they tend to break the octet rule which is not very frequently observed in the atoms. The example of odd electrons species are NO, NO₂ and ClO₂.

To know more about octet rule, visit,

https://brainly.com/question/865531

#SPJ4

Answer:

An element in Group 16 (oxygen, sulfur, selenium, etc.)

Explanation:

Sodium (Na) typically forms the cation Na⁺ during ionic bonding. If the overall charge of the compound is neutral (0), and there are two Na⁺ ions present (+1 + (+1) = +2), the element serving as the anion must have a -2 charge (+2 + (-2) = 0). Elements in group/column 16 have a -2 charge when ionized.

This is an example of positive feedback regulation.

A change in a particular direction causes an additional change in the same direction. For example, if the concentration of a substance increases, a feedback of continuously increasing concentration will occur.

A positive feedback loop occurs in nature when a product of a reaction leads to an increase in that reaction. Considering a system in homeostasis, a positive feedback loop pushes the system away from the goal of equilibrium.

Example of Positive Feedback Loops

The feedback loop possess two major forms: (1) positive feedback and (2) negative feedback. They work simultaneously to maintain body equilibrium under different conditions.

To know more about positive feedback regulation visit:

https://brainly.com/question/14451901

#SPJ4

so, to calculate the molar of the monoprotic weak acid ;

first, we write the reactions

HA +NaOH → NaH +H20

42.0ml NaOH ( 1l NaOH / 1000 ml NaoH ) (0.250 m/ 1l NaOH) (1 mol HA/ 1 mol NaOH)

0.0105 moles HA

now, we calculate the molar mass

molar mass= mass/ moles

                   = 0.483 grams/ 0.0105 moles

                   = 46 grams/moles

the molar mass of the monoprotic weak acid is 46grams/moles

Learn more about monoprotic weak acid here;

https://brainly.com/question/10088412

#SPJ4

Answer:

99 g/mol

Explanation:

2 carbon atoms in one molecule means double all the other atoms

(12*2)+(35.5*2)+(1*4)=99g/mol

448.142 mg was the initial mass (in mg) of the sample

What is half life ?

Half-life in radioactivity, the time interval required for half of the nuclei in a radioactive sample to decay (spontaneously converted to other types of nuclei by the release of particles and energy), or equivalently, the number of decays required Halve the amount of radioactive material per second of time interval.

For example, the radioisotope cobalt 60 used in radiotherapy has a half-life of 5.26 years. Therefore, after this interval, a sample that originally contained 8 g Cobalt-60 will only contain 4 g Cobalt-60 and emit half the amount of radiation. After another 5.26 year interval, the sample contains only 2 g of Cobalt-60. However, both the volume and the mass of the original sample are such that the unstable cobalt-60 nuclei decay into stable nickel-60 nuclei, leaving undecayed cobalt.

7/e^-4.1592 =448.142

To learn more about half life , click the link below ;

brainly.com/question/21912477

#SPJ4

The most valence electron is present in Cl. The fewest valence electrons are present in Ni and Ti. The most unpaired electrons are present in N. The fewest unpaired electrons are present in Cl.

What are valence electrons?

Valence electrons are the electrons present in the outermost shell of an atom that participate in formation of a chemical bond. For example, oxygen atom has total of six valence electrons. out of those 2 electrons are in the 2s subshell and 4 electrons are present in the 2p subshell. So the electronic configuration of oxygen atom can be written as 1s2 2s2 2p4.

Cl has 7 valence electrons in it. Ni and Ti have 2 valence electrons in them which is the least among the following. There are 3 unpaired electrons present in N atom which is the highest among the following atoms and Cl has 1 unpaired electron which is the lowest among the following atoms.

Therefore, the most valence electron is present in Cl. The fewest valence electrons are present in Ni and Ti. The most unpaired electrons are present in N. The fewest unpaired electrons are present in Cl among the following atoms.

To learn more about valence electrons click on the given link https://brainly.com/question/371590

#SPJ4

The substance with the highest specific heat value will have the highest increase in temperature.

What is a chemical reaction ?

Chemical reaction, the process by which one or more substances (reactants) are transformed into one or more other substances (products). Substances are either chemical elements or compounds. Chemical reactions rearrange the constituent atoms of reactants to produce different substances as products.

Chemical reactions are  part of technology, culture, life . Fuel combustion, glass and pottery making, beer , and wine and cheese making are few examples. Activities involving chemical reactions that have been around for thousands of years. Chemical reactions are abundant in a variety of complex processes occurring in the Earth's geology, atmosphere and oceans, and in all biological systems.

To learn more about the chemical reaction , click the given link ;

https://brainly.com/question/14361631

#SPJ1

Answer:

draw conclusions and analyze results

The unstable species is called as transition state.

Transition state in a chemical reaction is a point in the chemical reaction with highest potential or highest energy. This state is said to be the most unstable stage of any chemical reaction and this unstable stage exists between the substrate and the products.

When any chemical reaction takes place the energy of the reaction or the potential of the reaction gradually starts increasing as new bonds are about to form and the old bonds are ready to break. Once the reaction reaches a highest potential point we can see that at this point partial bond braking and partial bond is happening, this is called as the transition state.

As this is the unstable  state the reaction starts to loose energy as the product is formed.

To know more about transition state

https://brainly.com/question/14506318

#SPJ4

Each region has a different environment which can change the chemical composition of the body.

Many of the skeletons have related to age, sex, ancestry, and cause of death. The remains of an individual with biological information are especially valuable. Forensic anthropologists have used skeletons to develop standards for identifying the sex, age, and ancestry of unknown remains of the body. Analyzing the chemical composition of the murder victim's bone, can help to identify the region of the world from which the victim came because each region has a different environment that can change the chemical composition of the body.

So we can conclude that analyzing the chemical composition of the murder victim's bone helps the researcher to identify the victim due to the environment in which the person was exposed.

Learn more about bone here: https://brainly.com/question/412179

#SPJ1

If 2 isotopes of Osmium existed, Os-190 and Os-191,  one would have the highest percent abundance is Os - 190.

The isotopes are elements of the same family that all have the same number of protons but have the different number of neutrons. The two common type of isotopes of osmium is Os - 190 and the Os - 191. The isotopes whose mass is closer to the the relative atomic mass of osmium would have the highest percentage of the abundance. that is osmium 190.

Thus, If 2 isotopes of Osmium existed, Os-190 and Os-191,  one would have the highest percent abundance is Os-190.

To learn more about isotopes here

https://brainly.com/question/24707516

#SPJ1

the human activities like coal tar minings, foctory out let releasing the carbon gases out with out filtering, air polluting activities, over using personal vehicles for unnecessary activities,  and many other reasons that are briefly explained below

what is global warming?

a steady rise in atmospheric temperature often attributed to the greenhouse effect brought on by higher quantities of carbon dioxide, chlorofluorocarbons, and other pollutants.

The quantity of carbon dioxide emitted by human activity each year is at least 60 times greater than that produced by volcanoes. Large, ferocious eruptions may, for a few hours, match the pace of human emissions, but they are too uncommon and brief to come close to the yearly emissions of humans. In fact, the annual carbon dioxide emissions from a few specific U.S. states exceed those of the planet's entire active volcanoes.

In 2015, around 40 billion metric tonnes of carbon dioxide were released into the atmosphere as a result of human activity, mostly the burning of coal and other fossil fuels, but also cement manufacture, deforestation, and other landscape changes. The Global Carbon Project estimates that since the beginning of the Industrial Revolution, human activities have contributed more than 2,000 billion metric tonnes of carbon dioxide to the atmosphere.

To learn more about global warming follow the given link: https://brainly.com/question/46993

#SPJ4

Molecular formula of xanthophyll is C₄₀ H₅₆O₂ .

In the question given that

Compund xanthophyll is yellow in color and found in bird feathers and flowers.

It contains carbon , hydrogen and oxygen in ratio 20:28:1 .

Molecular formula : Μultiply each index of the molecular formula by n to get the molecular formula, as denoted by the general empirical formula AxBy: (AxBy)n= AₙₓBₙᵧ

from the given ration of composition of elements in compund we can drive empirical formula of xanthophyll.

empirical formula is C₂₀H₂₈O

Now , time to drive molecular formula for xanthophyll.

Molar mass of xanthophyll = 659g/mol

empirical formula mass = 12×20+1× 28+2× 16 = 300 g/mol

n formula per unit = molar mass of compound / empirical formula mass

=> n = 659/ 300 = 2.1 ~ 2

So , Molecular formula of xanthophyll is (C₂₀H₂₈O)2 = C₄₀H₅₆O₂

To learn more about Molecular formula, refer:

https://brainly.com/question/26388921

#SPJ4

Answer:

NH3 is the limiting reactant; 51 g of excess reactant left over.

Explanation:

First, create the chemical equation for this reaction and balance it:

4NH3 + 5O2 ---> 4NO + 6H2O

Then, find the limiting reactant, but in this case using NH3:

75 g NH3 * 1mol NH3/17.04 g NH3 *  5 mol O2/4 mol NH3 * 18.02 g 02/ 1 mol O2 = 99.14 g O2 needed

Since 99.14 g of O2 is needed to react with 75 g of NH3, this means O2 is the excess reactant, since we have 150 g of O2 which is more than needed. This means that NH3 is the limiting reactant.

To find the mass of excess reactant left over, subtract the mass of O2 needed (99.14 g) from the mass used in the reaction (150 g).

150 g - 99.14 g = 50.858 g

Round to the appropriate number of sig figs:

50.858 g --> 51 g

The statement that is true about the two isotopes is that carbon-12 has fewer neutrons (option D).

Isotopes are any of two or more forms of an element where the atoms have the same number of protons, but a different number of neutrons within their nuclei.

Based on the above explanation, this means that isotopes have the same atomic number but a different mass number.

According to this question, two isotopes were given as follows:

Carbon-12 and Carbon-14 both have the same number of protons of 6, however, they contain different number of neutrons. Carbon-12 possesses 6 neutrons while Carbon-14 possesses 8 neutrons.

Therefore, it can be said that Carbon-14 has more neutrons than Carbon-12.

Learn more about isotopes at: https://brainly.com/question/27475737

#SPJ1