a 6 carbon glucose molecule is broken down t 2 molecules of 3 carbon pyruvate cleavage, where ater molecule is broken off a frucose 1-6 bisphophate

Answer:

The definition of chemistry is a branch of science that deals with the form of properties of matter and substances or the interaction between individuals.

Answer:

that is Ph= -Log  ( 5.9  x10^-3)  =  2.2

the  solution is acidic since the  Ph is  less  than  7

Explanation:

Pathogenic bacteria are the most problematic in the food industry. The term "pathogenic" refers to any bacteria that are capable of causing illness when consumed by humans or animals.

Option A is correct

Pathogenic bacteria are often found in foods that are not cooked or handled correctly. This includes raw meat, unpasteurized dairy products, and foods that are stored at incorrect temperatures for an extended period of time. It is crucial for food industry professionals to follow strict safety protocols to minimize the risk of pathogenic bacteria contaminating their products, leading to foodborne illnesses.Foodborne illnesses can be caused by a variety of microorganisms, including bacteria, viruses, and parasites. Pathogenic bacteria are a significant concern in the food industry, as they can cause serious illness and even death in vulnerable populations such as young children, pregnant women, and the elderly. The most problematic bacteria in the food industry are those that are pathogenic and are capable of multiplying quickly in the food environment. Pathogenic bacteria can cause food poisoning, which is a severe illness that can result in dehydration, fever, vomiting, and diarrhea.

The symptoms can be severe and can lead to hospitalization or even death if left untreated. The most common pathogenic bacteria found in food are Salmonella, Listeria, and E.coli. These bacteria are often found in raw or undercooked meat, unpasteurized dairy products, and fruits and vegetables that are not washed correctly. It is essential for food industry professionals to follow strict safety protocols to prevent the growth and spread of these bacteria. Proper handwashing, storage, and cooking techniques can help minimize the risk of foodborne illnesses caused by pathogenic bacteria. In conclusion, pathogenic bacteria are the most problematic in the food industry. Food safety protocols should be followed to minimize the risk of foodborne illnesses caused by these bacteria.

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they get closer together

When the mixture of tea or coffee is added to dichloromethane and water and the mixture is agitated, the caffeine molecules will dissolve in the dichloromethane layer, which is the top layer. This is because caffeine is a non-polar compound that is more soluble in non-polar solvents, such as dichloromethane.

On the other hand, the polar components of the mixture, such as water-soluble organic acids and sugars, will dissolve in the water layer, which is the bottom layer. The two layers can then be separated by draining off the lower aqueous layer, leaving the top organic layer containing the caffeine.

Caffeine can be extracted from a mixture of tea or coffee using dichloromethane and water. Dichloromethane (also known as methylene chloride) is a non-polar solvent, meaning that it does not dissolve well in water, which is a polar solvent.

It's worth noting that extraction is a separation technique that relies on the differential solubility of the components in a mixture. By choosing a suitable solvent system, it is possible to selectively extract a specific compound, such as caffeine, from a complex mixture.

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Standardization is the process of titrating a solution that is prepared from: a carefully measured solid mass to accurately find the concentration of titrant.

Titration is also known as volumetric analysis (titrimetry) and it can be defined as a chemical process in which a solution of known concentration (titrant) is carefully and slowly added to another solution of unknown concentration, so as to determine the concentration or quantity of the analyte.

Similarly, a process referred to as standardization is used to titrate a solution that is prepared from a carefully measured solid mass to accurately find the concentration of titrant.

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Answer:

Explanation:

a) v=w*lambda

wavelength=5/2.5

wavelength=2m

b)342/320=1.06875m

c)342/1.5=228 Hz

d)4.6153=v/wave

Answer:

0.42g/cm³ or 420kg/m³

Explanation:

1cm³ = 1ml

10 × 1cm³ = 10cm³

Density = Mass ÷ Volume

4.2g ÷ 10cm = 0.42 g/cm³

Density = 0.42g/cm³ or 420kg/m³

The atomic number represents the number of protons, whereas the mass number represents the quantity of protons and neutrons. The number of protons equals the amount of electrons.

The atomic number is the number of protons. The number of neutrons may be calculated by subtracting the number of protons from the atomic mass, which is then rounded to the closest whole number.

For neutrally charged species, the number of electrons in an atom equals the atomic number of an element. This signifies that the number of electrons and protons in an element are equal. As a result, the number of electrons in oxygen is eight.

The number of valence electrons in neutral atoms equals the atom's main group number. A periodic table column can be used to determine an element's main group number. Carbon, for example, belongs to group 4 and contains four valence electrons.

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The artist adds pigment powder when melting wax with the encaustic method.option c.

Encaustic painting involves the use of heated wax as a medium. To create colors and add pigmentation to the wax, artists typically incorporate pigment powder. This allows them to achieve a wide range of vibrant hues and create various effects on their artwork.

By adding pigment powder to the melted wax, artists can control the intensity and shade of the colors they desire, enhancing the visual appeal and artistic expression of their encaustic paintings.

In encaustic painting, the addition of pigment powder to the melted wax provides the artist with a versatile and flexible medium for color manipulation. The powder is mixed into the molten wax until it is thoroughly blended, ensuring even distribution of the pigments.

This process allows artists to achieve different levels of transparency, opacity, and saturation in their artwork. The use of pigment powder in encaustic painting enables artists to create intricate details, textured surfaces, and expressive brushwork, adding depth and complexity to their compositions.

Overall, pigment powder is an essential component in the encaustic method, providing artists with a means to bring their artistic visions to life through a rich and visually captivating color palette.option c.

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Since the student wants to synthesize propionitrile from ethanol, the correct answer is C. PBr3, pyridine; NaCN.

This is a substitution reaction where the hydroxyl (-OH) group in ethanol is replaced with a cyano (-CN) group to form propionitrile. The reaction requires the use of a reagent that can convert the -OH group into a good leaving group and a nucleophile that can attack the carbon atom to form the C-N bond.

Out of the given options, PBr3 (phosphorus tribromide) is the best reagent to convert the -OH group into a good leaving group (Br-) by converting it into an alkyl bromide. Pyridine is used as a base to deprotonate the alcohol, making it a better leaving group. NaCN (sodium cyanide) acts as a nucleophile and attacks the carbon atom to form the C-N bond.

Therefore, the correct reagents for the synthesis of propionitrile from ethanol are PBr3, pyridine, and NaCN.

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Answer:

Differences in melting points between graphite and butter is how their atoms are fixed structurally. Graphite consists of carbon atoms that have covalent bonding with a compact hexagonal arrangement that gives a lot of stability to the compound and makes its melting point elevated to approximately 3500oC.

The allotropes of carbon are diamond and graphite. The allotropes can have same or different physical or chemical properties. Therefore,  differences in melting points between graphite and butter is due difference in structure.

Allotropy is a property by which an element exist in more than one form. The different forms of element are called allotropes.

The features of graphite are :

1.Graphite form strong covalent bonds.

2. Graphite has delocalized electrons but they don't have metallic bonding.

3. There are total four electrons per carbon but only three electrons are available for covalent bond. One electron per carbon is responsible for delocalization.

4. Graphite forms a giant structures.

Graphite consists of carbon atoms that have covalent bonding with a compact hexagonal arrangement that gives a lot of stability to the compound and makes its melting point elevated.

Therefore, differences in melting points between graphite and butter is due difference in structure.

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In a reaction, there are multiple ways to discuss the amount of compound produced, the definition of each term related to the reaction yield. The calculated amount of product under ideal conditions is theoretical yield, the amount of product experimentally produced  is actual yield, the comparison of the experimental amount of product to the calculated amount is the percent yield

In a reaction, there are multiple ways to discuss the amount of compound produced, the definition of each term related to the reaction yield is are 1. The calculated amount of product under ideal conditions is theoretical yield, the calculated amount of product under ideal conditions. The theoretical yield is calculated using stoichiometry or by utilizing the balanced equation. 2. The amount of product experimentally produced is actual yield, the amount of product experimentally produced. Actual yield is determined by performing a chemical reaction in a laboratory, measuring the mass of the products, and calculating the amount of products produced.

3. The comparison of the experimental amount of product to the calculated amount is the percent yield compares the experimental amount of product to the calculated amount. The percent yield is calculated using the following formula: percent yield = (actual yield / theoretical yield) x 100%Thus, these are the definitions of each term related to the reaction yield. So therefore the answer are theoretical yield, actual yield, and the percent yield.

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When the cold balloon filled with 2.30 L of helium is brought into the salt-conditioned car, the balloon is likely to shrink or decrease in size.

The volume of a gas is directly affected by temperature. When the cold balloon filled with helium is brought into a salt-conditioned car, the temperature inside the car is likely to be lower than the temperature outside. As a result, the temperature of the helium gas inside the balloon will decrease. According to Charles's Law, the volume of a gas decreases with a decrease in temperature, assuming constant pressure. Therefore, the helium gas inside the balloon will contract, causing the balloon to shrink or decrease in size.

Thus, the balloon will shrink or decrease in size when brought into the salt-conditioned car.

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Answer: a I think

Explanation:

Answer:

I think the answer is a

Explanation:

There is a 33.3% chance that it is correct. Why not risk it?

△ABC is an isosceles right-angled triangle If triangle abc is isosceles where Mole an=bc and m

One mole of any substance is equal to the value of 6.023 x 1023. It can be used to measure the products obtained from the chemical reaction. The unit is denoted by mol. The formula for the number of moles formula is expressed as. Number of Moles = Mass of substance / Mass of one mole.

The mole is an amount unit similar to familiar units like pair, dozen, gross, etc. It provides a specific measure of the number of atoms or molecules in a bulk sample of matter. A mole is defined as the amount of substance containing the same number of discrete entitie

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Answer: Galaxy

Explanation: A galaxy is a large system of stars held in place by mutual gravitation.

The pillar of sustainability broken by recycling electronics in India is environmental sustainability. Implementing a law that restricts electronics recycling to the US would not necessarily be the most effective solution, as it overlooks the complex global dynamics of electronic waste management.

Recycling electronics in India often involves improper disposal methods, such as burning or dismantling without proper safety measures. This leads to environmental pollution, including the release of hazardous substances into the air, soil, and water, thus violating the principle of environmental sustainability.

However, simply mandating that electronics can only be recycled in the US may not be the most optimal solution. Electronic waste is a global issue, and restricting recycling to a single country disregards the fact that electronic products are manufactured and consumed worldwide. A more comprehensive approach to addressing electronic waste would involve international cooperation, strict regulations, and monitoring of recycling practices to ensure they meet environmental standards.

Efforts should focus on improving recycling practices globally, including promoting responsible electronic waste management, developing sustainable recycling infrastructure in multiple countries, and encouraging the adoption of safe and environmentally friendly recycling practices. This approach would foster global sustainability and address the challenges associated with electronic waste disposal more effectively than a geographically limited restriction.

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Answer:

275g

Explanation:

Depending on the molar mass you are given, you can use that to solve this.

(I'm going based on my science class' molar mass of sulphur being 32.07g/mol)

Starting off, the formula for finding moles is

n=m/M (moles = mass / molar mass)

We can manipulate this equation to solve for mass.

m=Mn

now fill in what we now.

m = 32.07*8.56

mass = 274.5192

Now round for significant digits (if you are needed to do)

mass = 275g

Oils like petrol and diesel are fossil fuels. Using oil can be at a disadvantage as spilled oil can harm wildlife and the environment. Thus, option c is correct.

Oil is a nonrenewable fossil fuel that can get depleted when used in excess. It is extracted by many processes through mining underwater and in fields. During these extraction processes, oil spills can occur.

Oil spills directly affect the environment and cause pollution of water and soil. This leakage affects the flora and the fauna that lives in the area and causes their death due to lack of oxygen.

Therefore, option c. oil spills cause harm to wildlife.

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Answer:

Building artificial reefs and limiting fishing activity

Explanation:

The only activity that can successfully increase the natural biodiversity of fishes in the area would be building artificial reefs and limiting fishing activities.

The building of artificial reefs would create several microhabitats for fishes to thrive while limiting fishing activities would ensure that the rate of thriving or multiplication of fishes far outweighs the rate fishes are being removed from the area. Both actions will work synergistically to increase the natural biodiversity of fishes in the area.

The introduction of non-native species can have a negative consequence for the area as non-native species have a history of reducing biodiversity by outcompeting the native species and becoming invasive.

Building artificial reefs and increasing fishing activities would be counterproductive. While artificial reefs can increase the thriving of fishes, increasing fishing activities would take away the gains of the artificial reefs.

Eliminating non-native species and encouraging fishing for large predatory fish will disrupt the ecological balance of the area and might have negative effects on biodiversity.

Answer:

inorganic chemicals

Explanation:

Organisms that use inorganic chemicals as a source of energy and convert them into organic substances are known as Chemosynthetic bacteria. Unlike plants, they obtain their energy from the oxidation of inorganic molecules, rather than photosynthesis. Chemosynthetic bacteria use inorganic molecules, such as ammonia, molecular hydrogen, sulphur, hydrogen sulphide and ferrous iron, to produce the organic compounds needed for their subsistence. Chemosynthetic bacteria are found in deep-sea or in the areas where sunlight does not penetrate.

Answer:

1) Ba(OH)₂

2) The correct option is a) they conduct electricity.

Explanation:

To deduce the formula of Barium hydroxide, we have to go to the periodic table and look for the Barium (Ba), which is in group 2 and has an ionic charge of 2+. Hydroxides are not an element that is present in the periodic table is the combination of Oxygen and Hydrogen (OH), and its ionic charge is 1-.

To name this substance, we write the elements that form it, which are Ba OH, then we see the ionic charges that they have, Ba2+ OH 1- and we change these charges giving the 2+ to the OH and the 1- to the Ba. It would look Ba OH₂; we do not write the 1, and as there is a 2, the OH, has to be between brackets so that the final formula is Ba(OH)₂. What we did is balancing the charges of the elements. In other words, we need 2 OH for every Ba. Hydroxides give an electron to balance the Ba ionic charge.

Barium Hydroxide is an ionic compound because ionic compounds are formed by a metal (Ba) and a nonmetal element (OH), ionic compounds are charged, so when they are in an aqueous solution they conduct electricity because their ions move freely in the solution.                                          

The electron pair geometry around oxygen in a hydronium ion is tetrahedral. This is because there are four electron pairs around the oxygen atom, including three bonding pairs and one lone pair. The three hydrogen atoms are arranged in a trigonal planar arrangement around the oxygen atom, which creates a tetrahedral electron pair geometry for the oxygen atom.

To determine the electron pair geometry around oxygen in a hydronium ion (H3O+), we'll consider the following terms: electron pairs, lone pairs, and bonding pairs.

Step 1: Identify the number of electron pairs around the oxygen atom in the hydronium ion. Oxygen has 6 valence electrons, and in H3O+, it forms three single bonds with three hydrogen atoms, using 3 of its valence electrons. The remaining 3 valence electrons form a lone pair on the oxygen atom.

Step 2: Calculate the total number of electron pairs around oxygen. We have three bonding pairs (from the O-H bonds) and one lone pair. Therefore, there are 4 electron pairs around the oxygen atom in H3O+.

Step 3: Determine the electron pair geometry. With 4 electron pairs, the electron pair geometry around the oxygen atom in the hydronium ion is tetrahedral.

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In the given chemical equation, oxidation takes place at anode  of the electrochemical cell .

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

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Nonrestrictive elements are sets of words that can be deleted from a statement without affecting its meaning. Nonrestrictive elements can be separated from the rest of the sentence because their removal has no impact on meaning.

A sentence's non-restrictive or parenthetical elements are those that can be eliminated without affecting the meaning of the sentence. Without the parenthetical component, the sentence would still make sense. The non-restrictive or parenthetical phrase is "as I've said many times."

Readers will still comprehend the meaning of the sentence even if the information in the commas is not included. A non-essential clause or phrase is another name for one that is not restrictive. Here are some instances: I would like to thank my father, Mark Smith, for his unconditional love.

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They are extremely small infront of earth size.

The pH at the equivalence point will be 7. To find the pH at the equivalence point of the titration, we need to determine the moles of HCl and NaOH and then calculate the concentration of the resulting salt solution.

First, let's calculate the moles of HCl:

Moles of HCl = volume (in L) × molarity

           = 0.050 L × 0.100 mol/L

           = 0.005 mol

Since the stoichiometric ratio between HCl and NaOH is 1:1, the moles of NaOH used will also be 0.005 mol.

At the equivalence point, all the HCl is neutralized by the NaOH. Therefore, we have a solution of NaCl.

The volume of the resulting solution will be the sum of the initial volumes of HCl and NaOH:

Volume of resulting solution = Volume of HCl + Volume of NaOH

                           = 0.050 L + 0.050 L

                           = 0.100 L

To find the concentration of the resulting NaCl solution, we divide the moles of NaCl by the volume:

Concentration of NaCl = moles of NaCl / volume of NaCl solution

                    = 0.005 mol / 0.100 L

                    = 0.050 mol/L

NaCl is a salt of a strong acid (HCl) and a strong base (NaOH). It completely dissociates in water, resulting in a neutral solution. Therefore, the pH at the equivalence point will be 7.

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The products in the overall equation for aerobic respiration are ATP (adenosine triphosphate) and CO2 (carbon dioxide).

What is aerobic respiration?

Aerobic respiration is a metabolic process that uses oxygen to convert glucose into energy. During aerobic respiration, glucose (sugar) is broken down in the presence of oxygen (O2) to produce energy in the form of ATP (adenosine triphosphate). This process also produces carbon dioxide (CO2) and water (H2O). The energy produced by aerobic respiration is used to fuel cellular processes such as protein synthesis and muscle contractions. Aerobic respiration is the main form of respiration in humans and other animals.

The overall equation for aerobic respiration is C6H12O6 + 6O2 yields 6CO2 + 6H2O + energy (as ATP). ATP (adenosine triphosphate) and CO2 (carbon dioxide) are products in the overall equation for aerobic respiration. NaOH (natrium hydroxide) and CO (carbon monoxide) are not products in the equation.

Therefore, ATP (adenosine triphosphate) and CO2 (carbon dioxide) are the answers.

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Answer:

The three main subatomic particles that form an atom are protons, neutrons, and electrons.

Explanation:

Answer:

The three main subatomic particles that form an atom are protons, neutrons, and electron