What else should you listen for as a speaker gives a speech?

Answer:

Solute=the substance which a solvent dissolve to produce homogeneous mixture

Solvent= the substance in which a solute dissolve to produce homogeneous mixture

Explanation:

solvent: The liquid in which a solute is dissolved to form a solution.

solute: The component in a solution, dissolved in the solvent.

Answer:

m = 16.67 g of Hg

Explanation:

Let's write the overall decomposition reaction that is taking place:

2HgO ---------> 2Hg + O₂

According to the balanced reaction, we can see that the mole ratio between HgO and Hg is the same (2:2 or 1:1), therefore, we can assume that the moles reactants of HgO would be the moles produced of Hg. So, in order to get the grams of mercury, we need to determine the moles first.

To get the moles, we need to use the following expression:

moles = mass / MM   (1)

The molar mass of HgO can be calculated using the atomic weights, which are:

Hg: 200.59 g/mol ; O: 15.999 g/mol

MM HgO = 200.59 + 15.999 = 216.589 g/mol

The moles are:

moles HgO = 18 / 216.589 = 0.0831 moles

As we stated before, moles reactants are the same moles produced, so:

moles HgO = moles Hg = 0.0831 moles of Hg.

Finally, to get the mass, we just solve the mass from (1):

m = moles * MM   (2)

m = 0.0831 * 200.59

Hope this helps

In the bicarbonate buffering system, carbon dioxide and water join to form carbonic acid, which dissociates into hydrogen and bicarbonate.

A buffer solution resists the changes in acidity by combining with the hydrogen ions that were added and inactivates them. It is a solution of weak acid and its conjugate base, (carbonic acid and bicarbonate). The natural conversion of carbon dioxide into carbonic acid is slow.

Bicarbonate buffer absorbs hydrogen ions and forms carbonic acid. The total number of hydrogen ions and hence the pH of the solution does not change. Bicarbonate is consumed and carbonic acid is produced when hydrogen ions are added.

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The PESTLE and SWOT analyses provide a comprehensive assessment of the external and internal factors influencing the Harvard case "Clean Edge Razor: Splitting Hairs in Product Positioning."

The PESTLE analysis examines the external factors that may impact the case. Politically, regulations on product safety and environmental sustainability could affect the razor industry. Economically, consumer purchasing power and economic trends may impact the demand for high-end razors. Sociocultural factors, such as grooming habits and preferences, influence consumer behavior. Technological advancements, such as electric razors and online shopping, pose opportunities and challenges. Legal factors include intellectual property rights and advertising regulations. Environmental considerations involve sustainability and eco-friendly practices.

The SWOT analysis evaluates the internal strengths and weaknesses of the case. Strengths may include the Clean Edge brand reputation and innovative product features. Weaknesses could involve high manufacturing costs or limited market presence. Opportunities may arise from market growth and expanding into new segments. Threats may come from intense competition and changing consumer preferences.

By conducting both analyses, the case can gain insights into the broader industry landscape, identify potential risks and opportunities, and assess its own internal capabilities. This holistic understanding aids in making informed decisions and formulating effective strategies for positioning the Clean Edge Razor product.

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. Propanamide is an organic compound with the molecular formula C3H7NO. It is a primary amide, which means it contains a carbonyl group (C=O) attached to an amino group (NH2) on a primary carbon atom (i.e., the carbon atom directly attached to the nitrogen atom).

Propanamide is a colorless to pale yellow liquid at room temperature and is commonly used as a solvent in the production of polymers, pharmaceuticals, and other industrial products.

b. 2-Aminopropanoic acid, also known as Alanine, is an α-amino acid with the molecular formula C3H7NO2. It is a nonpolar amino acid, which means it has a hydrophobic side chain (methyl group) and is commonly found in the interior of proteins. Alanine is important in protein synthesis and is also a source of energy for muscle tissues during exercise.

c. 2-Aminoethanoic acid, also known as Glycine, is an α-amino acid with the molecular formula C2H5NO2. It is the simplest amino acid and is the only one that is not optically active because its R-group is a hydrogen atom. Glycine is an important neurotransmitter in the central nervous system and is also used in the synthesis of proteins, purines, and heme.

d. Butanamide, also known as Butyramide or Butyramine, is an organic compound with the molecular formula C4H9NO. It is a primary amide that is commonly used as a precursor in the production of various chemicals and pharmaceuticals. Butanamide can be synthesized from butyric acid, which is a fatty acid found in milk, butter, and cheese. It is also found in some plant extracts and is a metabolite of the neurotransmitter GABA.

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Answer: Umm

Explanation:

I can't draw on the picture oh wait I can let me add my answer

Answer:Well just use the numbers in the chart and go from the bottom to the top. I understand that these are hard I would recommend watching a video on something that is similar to this problem and do it that way I understand if This is not much help but this question has stumped me. :(

Explanation:

Answer:

120 gram sample of a radioactive element, how many grams of that element will be left after 3 half-lives have passed? If you have a 300

Explanation:

Hope this helps!

Answer:

pints

Explanation:

Answer:

B: pints

fl.oz.

Explanation:

Answer: A and B have the same density

Explanation:

After solving the problem the final volume of the gas is 35L.

The final volume is the amount of space occupied by an object, gas, or liquid in its finished state. It is the total volume of a substance, regardless of any changes that may have occurred to it during a process.

The final volume of the gas can be calculated using the ideal gas law. The ideal gas law states that:
PV = nRT
where P is pressure, V is volume, n is the amount of substance, R is the ideal gas constant and T is temperature.
Since this is an isothermal process, the temperature is constant and can be cancelled out. We can rearrange the equation to:
V2 = V1 (P2/P1)
where V2 is the final volume and V1 is the initial volume.
Substituting in the values, we get:V2 = 20L (1.75/1.00)
V2 = 35L
Therefore, the final volume of the gas is 35L.

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The volume of new solution is 87.88 mL.

To dilute a solution, you are adding a solvent (usually water) to decrease the concentration of the solute. In this case, you have 31.6 mL of a 4.45 M NaOH solution, and you want to dilute it to a concentration of 1.60 M while achieving a final volume of

The dilution formula is given by:

C1V1 = C2V2

Where:

C1 is the initial concentration

V1 is the initial volume

C2 is the final concentration

V2 is the final volume

Using this formula, you can calculate the volume of the concentrated solution needed to achieve the desired concentration.

4.45 M × 31.6 mL = 1.60 M × V2

V2 = (4.45 M × 31.6 mL) / 1.60 M

= 87.88 mL

So, to obtain a 1.60 M NaOH solution with a volume of 87.88 mL, you need to add 31.6 mL of the concentrated 4.45 M NaOH solution and then add enough water to reach the final volume of 87.88 mL.

By diluting the concentrated NaOH solution, you are effectively reducing the number of moles of NaOH per unit volume, which results in a lower concentration.

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The structure for 5-chloro-2-propyl-1-heptanol can be drawn by drawing a 7 carbon chain with (OH) functional group on C1, adding propyl group on C2 and  Cl on C5                                  

5-Chloro-2-propyl-1-heptanol is an organic compound that belongs to the class of alcohols.

The IUPAC name of the compound is 5-chloro-2-propylheptan-1-ol, which denotes the position of the hydroxyl group on the carbon chain. The prefix "heptan-" refers to the seven-carbon chain, and the suffix "-ol" denotes the presence of an alcohol functional group (-OH).

5-Chloro-2-propyl-1-heptanol is a colorless to pale yellow liquid with a strong odor. It is a primary alcohol. It is a versatile chemical intermediate that can be used to prepare a variety of other compounds, including pharmaceuticals, agrochemicals, and flavors. It is also used as a solvent and a reagent in organic synthesis

Thus, the structure for 5-chloro-2-propyl-1-heptanol can be drawn by drawing a 7 carbon chain with (OH) functional group on C1, adding propyl group on C2 and  Cl on C5  

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Answer:

I'm pretty sure it all of the above

sorry if I'm wrong

Explanation:

Answer:

volume problem

Explanation:

cubic usually means volume

Answer:

9.7 ml

Explanation:

Molarity = 2.5 M

Mass = 0.97g

Volume = ?

The relationship between these quantities is;

Molarity = Number of moles / Volume

Number of moles = Mass / Molar mass

Molar mass of NaOH = 40g/mol

Number of moles = 0.97 / 40  = 0.02425 mol

Volume = Number of moles / Molarity = 0.02425 / 2.5 = 0.0097 L

1000 ml = 1L

x = 0.0097 L

x = 0.0097 * 1000 = 9.7 ml

Answer:

They all wear their skeletons on the outside! This is called an exoskeleton and all creatures that have their structure on the outside are included in the phylum of Arthropods.

Explanation:

After 8 years with a continuously compounded rate of 6%, the cost of one new cash register would be approximately $729.41.

To calculate the cost of one new cash register after 8 years with a continuously compounded rate of 6%, we can use the formula for continuous compound interest:

A = P * e^(rt)

Where:

A is the final amount (cost of one new cash register after 8 years)

P is the initial amount (cost of one cash register at the start)

e is the mathematical constant approximately equal to 2.71828

r is the interest rate (6% or 0.06 in decimal form)

t is the time in years (8 years in this case)

Let's assume the initial cost of one cash register is $450.

A = 450 * e^(0.06 * 8)

Using a calculator or math software, we can calculate the value of e^(0.06 * 8):

A ≈ 450 * 2.71828^(0.48)

A ≈ 450 * 1.62092

A ≈ 729.41

Therefore, after 8 years with a continuously compounded rate of 6%, the cost of one new cash register would be approximately $729.41.

It's important to note that continuous compound interest assumes that the interest is being compounded constantly throughout the given period. This calculation provides an estimate based on the assumption of continuous compounding, and actual financial calculations may consider different compounding periods or factors such as taxes, inflation, or other fees that could affect the final cost.

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Answer: Ovalbumin (Albumin)

Explanation:

The albumen (egg white) is composed of almost 60% of the protein ovalbumin. It's the main source of proteins for tissue synthesis in the embryo. It acts as a storage protein, storing ions and amino acids necessary for embryonic development.

There are four different proteins present in egg white. In which the most abundant protein is ovalbumin present in 54 %.  

Proteins are biomolecules very essential for life. Proteins are made of a number of amino acids.  Amino acids join together to form peptides and large number of peptides constitute a protein.

Essential amino acids have to be up taken from diet and non-essential will be produced inside the body.

Proteins are the major substances to build up our body. There are essential and non essential amino acids. Nails and hair are made of keratin protein. Milk contains the protein called lactine.

Similarly the protein in curd is casein. The proteins in egg white are ovalbumin, ovotransferrin, ovomucin and ovomucoid. In which ovalbumin is most abundant.

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The neutral organic product obtained from the reaction is propene (CH3CH=CH2)

The given reaction involves the dehydration of 1-propanol (CH3CH2CH2OH) in the presence of concentrated sulfuric acid (H2SO4) at 200°C. Dehydration is the removal of a water molecule from the alcohol compound. In this case, 1-propanol loses a water molecule to form propene (CH3CH=CH2), which is an alkene.

The neutral organic product resulting from this reaction is propene (CH3CH=CH2). The reaction occurs as the hydroxyl group (-OH) of 1-propanol is protonated by the acidic H2SO4, leading to the loss of a water molecule. This creates a double bond (C=C) between the second and third carbon atoms, resulting in the formation of propene.

Thus, the neutral organic product obtained from the reaction is propene (CH3CH=CH2).

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Answer:

A.

Explanation:

There are no vehicle emissions other than water vapor. This means no pertroleum products and no fossil fuels. :)

-Sienna Sushi

We need ti find how many elements there are in the first period and what are these.

To know what is the first period we must use that

Seeing the periodic table, the first row has two elements.

We can see that these elements are H ( hydrogen ) and He ( helium ).

ANSWER:

Firs period in the periodic table has two elements and they are called hydrogen and helium.

Answer:

atomic mass of sulfur is 32.06 g/mol

Explanation:

Answer: What are black holes and how do they work?

Explanation:

Answer: An element has 2 isotopes: 6X at 7.59% and 7X at 92.41%. What is the average atomic mass?

Explanation:

In a bid to  calculate the average atomic mass, we  multiply the fraction of each isotope by the mass number , then add them together.

This is more like weighted average, as shown below:

average atomic mass=(mass number of first isotope*fraction)+(mass number of second isotope*fraction)

average atomic mass=(6X*7.59%)+(7X*92.41%)

average atomic mass= 6.92X

Answer:

K < Fe < Br < Kr

Explanation:

Given chemical elements;

      Potassium

      Iron

      Bromine

      Krypton

Problem; arrange in order of increasing electronegativity

Solution:

The electronegativity of an element measures the relative tendency with which the atoms of the element attracts valence electrons in the chemical bond.

 To solve this problem, we are going to use values of electronegativity from the Pauling's electronegativity table of elements;

       For;

            Potassium  = 0.8

            Iron = 1.83

            Bromine  = 2.8

            Krypton = 3.0

So;

  K < Fe < Br < Kr

The volume (in liters) of 12.5 g of argon gas at a pressure of 1.05 atm and a temperature of 322 k is 7.86L.

Given,

Mass of argon = 12.5 g

Molar mass of argon = 40 g

Pressure = 1.05 atm

Temperature = 322K

By using ideal gas equation:

PV = nRT

where,

P = pressure, V = volume, n = number of moles,

R = gas constant = 0.0821Latm/ mol K

and T = temperature

Moles = given mass/ molar mass

= 12.5/40

= 0.3125 mol

V = nRT/P

V = 0.3125× 0.0821 × 322/1.05

= 7.86L

Thus, we find that the volume of 12.5 g of argon gas is 7.86L.

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Answer:

P = 2.145kPa

Explanation:

Mass = 22.1g

Molar mass of CO2 = 44g/mol

Vol = 165mL = 0.165L

T = -188°C = (-188 + 273.15)K = 85.15K

R = 8.314J/mol.K

From ideal gas equation,

PV = nRT

P = pressure of the ideal gas

V = volume the gas occupies

n = number of moles if the gas

R = ideal gas constant

T = temperature of the gas

n = number of moles

n = mass / molar mass

n = 22.1 / 44 = 0.50moles

PV = nRT

P = nRT/ V

P = (0.5 × 8.314 × 85.15) / 0.165

P = 2145.26Pa = 2.145kPa

Pressure of the gas is 2.145kPa

Answer:

The Five-Column Chart is a useful tool for summarizing your investigation. In the case of your investigation involving solids, the chart would include columns for Properties, Examples, Uses, Interactions and Special Characteristics. In the Properties column, you would list the physical and chemical properties of solids, such as shape, texture, melting point, boiling point and solubility. The Examples column would list examples of solids, such as metals, plastics and rocks. The Uses column would list the various uses of solids, such as in construction, engineering and medicine. The Interactions column would list how solids interact with each other, such as through adhesion, cohesion and friction. Finally, the Special Characteristics column would list any special characteristics of solids, such as their electrical conductivity or magnetic properties.

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