Culinary emulsion can disperse fat into the water, but it cannot disperse water into the fat. The sentence is True.
The two types of culinary emulsions are fat dissolved in water and water dissolved in fat. The emulsions of fat and water that are most frequently used are hollandaise, mayonnaise, aioli, milk, and pan sauces. The most typical forms of water in fat emulsifications are vinaigrettes and whole butter. The vinaigrette is made by mixing vinegar and oil. Mayonnaise is typically made with egg yolks and oil. Aioli is made with garlic and oil. Milk sauces can be made with any type of milk, but are mostly commonly seen in cream sauces. The fat in butter is emulsified with water. The butter is created when the butterfat is emulsified with salt and water.
Therefore, the given statement is right.
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Answer: its false
Explanation: got it right on test
Determine physiological temperature, 98.6 F in degree C
Answer:
37
Explanation:
( 98.6 - 32 ) × 5(100c) ÷ 9(180f) = 37
beta-carotene is an organic compound with an orange color. the diagram above shows the ultraviolet spectrum of beta-carotene. which of the following statements is true about the absorption bands in the spectrum? responses the absorption band between 250 and 320 nm is due to transitions in electronic energy levels, and the absorption band between 380 and 520 nm is due to transitions in molecular vibrational levels. the absorption band between 250 and 320 nanometers is due to transitions in electronic energy levels, and the absorption band between 380 and 520 nanometers is due to transitions in molecular vibrational levels. the absorption band between 250 and 320 nm is due to transitions in molecular vibrational levels, and the absorption band between 380 and 520 nm is due to transitions in molecular rotational levels. the absorption band between 250 and 320 nanometers is due to transitions in molecular vibrational levels, and the absorption band between 380 and 520 nanometers is due to transitions in molecular rotational levels. the two main absorption bands are associated with transitions in electronic energy levels. the band in the region corresponding to shorter wavelengths shows a lower absorbance than the band in the region corresponding to longer wavelengths. the two main absorption bands are associated with transitions in electronic energy levels. the band in the region corresponding to shorter wavelengths shows a lower absorbance than the band in the region corresponding to longer wavelengths. the two main absorption bands are associated with transitions in molecular vibrational levels. the band in the region corresponding to shorter wavelengths shows a lower absorbance than the band in the region corresponding to longer wavelengths.
The correct response is: "The absorption band between 250 and 320 nanometers is due to transitions in electronic energy levels, and the absorption band between 380 and 520 nanometers is due to transitions in molecular vibrational levels."
The correct statement about the absorption bands in the spectrum of beta-carotene, an organic compound, is: "The absorption band between 250 and 320 nanometers is due to transitions in electronic energy levels, and the absorption band between 380 and 520 nanometers is due to transitions in molecular vibrational levels."The absorption band between 250 and 320 nanometers is due to transitions in electronic energy levels, and the absorption band between 380 and 520 nanometers is due to transitions in molecular vibrational levels."
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Which of the following combinations of quantum numbers (n, l, ml, ms) do NOT represent permissible solutions of the Schrodinger equation?
6, 5, -5, ½
6, -5, -1, ½
8,2,2, ½
All are allowed
9, 8, -4, ½
Explanation:
6, -5, -1, 1/2 is wrong because the angular momentum quantum number cannot be negative.
What is the ratio of oxygen atoms to hydrogen atoms in the mineral aluminiteAl2(SO4)(OH)4. 7H2O?A.8:4B.15:18C.18:15D.15:11E.11:15.
The ratio of oxygen atoms to hydrogen atoms in the mineral aluminite is 15:11. Answer: D. 15:11.
The ratio of oxygen atoms to hydrogen atoms in the mineral aluminite Al2(SO4)(OH)4. 7H2O is 15:11. The correct answer is option D. 15:11.
Explanation:
To find the ratio of oxygen atoms to hydrogen atoms in the mineral aluminite, we need to count the number of oxygen atoms and hydrogen atoms in the formula.
The number of oxygen atoms in the formula is:
4 (from SO4) + 4 (from OH) + 7 (from H2O) = 15 oxygen atoms
The number of hydrogen atoms in the formula is:
4 (from OH) + 14 (from H2O) = 11 hydrogen atoms
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true/false. definition 12 - wraps around the entire length of each thin filament. it also helps to anchor thin filaments to z discs in addition to regulating the length of thin filaments during development.
The protein that wraps around the whole length of each thin filament helps anchor thin filaments to z-discs in addition to regulating the length of thin filaments during development is tropomyosin.
In addition to regulating the length of thin filaments during development, tropomyosin also aids in anchoring thin filaments to z-discs.In muscle cells, the thin filaments are composed of two actin filaments that are twisted together, with tropomyosin being wrapped around the whole length of each thin filament.
The protein troponin is bound to the actin filaments along the length of the thin filament, and it serves to regulate the interactions between actin and myosin proteins during muscle contraction. Tropomyosin acts to stabilize the actin filaments, preventing them from falling apart or being degraded.
It also aids in anchoring the thin filaments to the z-discs that separate the sarcomeres, the basic unit of muscle contraction. Tropomyosin is vital for the proper functioning of muscle cells, and it plays a crucial role in regulating muscle contraction by ensuring the alignment of the actin and myosin filaments.
By stabilizing the thin filaments and anchoring them to the z-discs, tropomyosin ensures that the sarcomeres maintain their structure and that muscle contraction is coordinated and effective.
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Complete Question:
Which protein wraps around the entire length of each thin filament, and helps anchor thin filaments to z-discs in addition to regulating the length of thin filaments during development?
_______ is the type of heat that cooks the fruit.
A. Raditation
B. Conduction
C. Covection
Answer:
A.Radiation
Explanation:
A 50 kg girl rode her 12 kg bicycle in a race. She started from rest and then peddled with a velocity of 10 m/s. What is the change in kinetic energy of the girl and her bicycle?
The initial kinetic energy is zero because the girl was at rest. The final kinetic energy is thus, 3100 J. Therefore, the change in kinetic energy is 3100 J
What is kinetic energy ?Kinetic energy of an object is generated by virtue of its motion. It is related to the mass and velocity of the object as follows:
Ke = 1/2 mv²
Given that, mass of girl = 50 kg
mass of bicycle = 12 kg.
total mass = 62 kg.
velocity = 10 m/s.
Then initial kinetic energy = 0 since v = 0.
Then, ΔKe = 1/2 62 kg × (10 m/s)² - 0 = 3100 J
Therefore, the change in kinetic energy of the girl is 3100 J.
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Many factors would bring advantages when using fuel cells in cars, but which factor presents a drawback? fuel consumption hydrogen storage greenhouse gas emissions reliance on petroleum products
One potential drawback of using fuels cells in cars is that it require large tanks for hydrogen storage.
What are fuels cells?Fuel cells are cells which use hydrogen and oxygen as fuel to produce electrical energy for use in various purposes such as in powering cars.
The energy produced is as a result of redox reactions.
Fuels cells are clean renewable energy sources.
A potential drawback of using fuels cells in cars is that it require large tanks for hydrogen storage.
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Calculate the enthalpy of solution in kilojoules per mole of solute
Separation of solute: 13.5 kj/mol
Separation of solvent: 19.8 kj/mol
Formation of solute-solvent interactions: -88.8 kj/mol solute
(-88.8) - (13.5 + 19.8)
(-88.8) - (33.3)
= - 122 kJ/mol
the enthalpy of solution is -55.5 kJ/mol.
To calculate the enthalpy of solution, you need to determine the difference between the enthalpy of the solute in its separated state and the enthalpy of the solute when it is dissolved in a solvent.
The enthalpy of solution is the amount of energy absorbed or released when one mole of solute dissolves in a solvent.
In this case, you are given two values: -88.8 kJ/mol and -33.3 kJ/mol.
The first value, -88.8 kJ/mol, represents the enthalpy of the solute in its separated state, while the second value, -33.3 kJ/mol, represents the enthalpy of the solute when it is dissolved in a solvent.
To calculate the enthalpy of solution, you simply subtract the enthalpy of the solute in its dissolved state from the enthalpy of the solute in its separated state.
This is because the enthalpy of solution represents the change in enthalpy as the solute dissolves:
Enthalpy of solution = Enthalpy of separated state - Enthalpy of dissolved state
Using the given values, you can perform the calculation:
Enthalpy of solution = (-88.8 kJ/mol) - (-33.3 kJ/mol)
When you subtract a negative number, it is the same as adding its positive equivalent:
Enthalpy of solution = -88.8 kJ/mol + 33.3 kJ/mol
Now, you can perform the addition:
Enthalpy of solution = -55.5 kJ/mol
This means that the enthalpy of solution is -55.5 kJ/mol. A negative value indicates that energy is released during the dissolution process, making it an exothermic reaction.
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Use linear algebra to balance the chemical equation: C7H₁6 +0₂ → CO₂ + H₂O. 20. Let V be the set of all vectors in ³ whose components sum to zero (e.g. (-5, 2, 3) is in the set V but (0, 0, 1) is not). Is V a subspace of R³2 Give compelling evidence either way. 15. (Determine the quadratic interpolant to the given data set using linear algebraic techniques. (The quadratic interpolant is a quadratic equation that best approximates the data set). {(6.667, 46.307), (4.567, 16.582), (3.333, 4.857)}
The balanced chemical equation is:
0.5C7H16 + O2 → 0.5CO2 + H2O
For balancing the chemical equation C7H16 + O2 → CO2 + H2O, we can use linear algebraic techniques. We need to determine the coefficients that balance the number of atoms on both sides of the equation.
Let's denote the coefficients for C7H16, O2, CO2, and H2O as a, b, c, and d, respectively.
The balanced chemical equation can be written as:
aC7H16 + bO2 → cCO2 + dH2O
To balance the carbon (C) atoms, we have:
7a = c (Equation 1)
To balance the hydrogen (H) atoms, we have:
16a = 2d (Equation 2)
To balance the oxygen (O) atoms, we have:
2b = 2c + d (Equation 3)
We have three equations (Equations 1, 2, and 3) and four unknowns (a, b, c, d). To solve this system of equations, we can write it in matrix form and find the solution using linear algebraic techniques.
The augmented matrix for the system of equations is:
[ 7 0 -1 0 | 0 ]
[ 0 0 0 -2 | 0 ]
[ 0 -2 2 -1 | 0 ]
By performing row operations to row-reduce the augmented matrix, we can obtain the solution:
[ 1 0 -0.5 0 ]
[ 0 1 -1 -0.5 ]
[ 0 0 0 0 ]
The solution to the system of equations is:
a = 0.5
b = 1
c = 0.5
d = 1
Putting the values of a,b,c, and d we get the balanced chemical equation as:
0.5C7H16 + O2 → 0.5CO2 + H2O
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In pulmonary ventilation, the movement of gases is between the ______ and the ______.
In pulmonary ventilation, the movement of gases is between the atmosphere and the alveoli of the lungs.
It is the process of inhalation and exhalation of air from the lungs. This happens because of the difference of pressure due to contraction and relaxation.
Inspiration occurs intrapleural cavity enlarges due to diaphragm's contraction which pulls it down. intrapleural cavity also occurs when ribs are elevated.
In pulmonary ventilation, three different pressures are included; Atmospheric pressure, Interalveolar pressure, Intrapleural pressure.
The pressure outside the body is known as atmospheric pressure. Pressure inside the alveoli of the lungs is known Interalveolar pressure. The pressure in the pleural cavity is known as Intrapleural pressure.
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Please help me respond this question
Could someone help me please?
Answer:
I think its A And C OR D HOPE ITS RIGHT
Explanation: BY THE LOVE YOUR AVTAR
True statements are:
Density increases if the volume of an object decreases and the mass remains the same.
Density increases if the mass of an object increases and the volume remains the same.
Density remains the the same if the mass and volume of an object increases proportional.
Further:
Density = Mass/Volume
Which bond between atoms will be more ionic?Group of answer choicesC-NO-OCl-ClC-CMg-Cl
Ionic compounds contain ions and are held together by the attractive forces among the oppositely charged ions. It's common to see ionic compounds formed by metal and nonmetal because you can note that the electronegativity difference between the elements of these compounds is greater than or equal to 1.7.
In the group of answer choices, you can see various things about Mg - Cl because it's the only answer that contains a metal (Mg) and nonmetal (Cl), their difference electronegativity is 1.8 (The electronegativity of Cl is 3.0 and for Mg is 1.2, so 3.0 - 1.2 = 1.8, it's greater than 1.7. The electronegativities can be found in the periodic table). Mg has a positive charge (+2) and Cl has a negative charge (-1).
All these characteristics is telling us that the bond Mg - Cl is the more ionic in this case. The answer is Mg - Cl.
Help!!! Answer
Imagine your teacher asks you to design an experiment where you test the effect of temperature on the growth of a plant. You have 5 plants that you plant and place in different temperatures around the room. What would your one variable be and what would your constants be?
Dependent variables could be height, number of leaves, biomass, etc. The constants could be the amount of water fed to the plants and other environmental conditions apart from the temperature.
Experimental variablesExperimental variables could be independent, dependent, or constant.
Independent variables are supplied by the researcher and are often varied or manipulated to produce different effects on experimental systems or subjects.
Dependent variables are measured. Their values are often affected by whatever independent variable the researcher supplies.
Constant variables are uniform throughout the experimental groups or subjects.
Thus, in this case, the aim is to test the effect of temperature on the growth of a plant. The independent variable is the different temperatures.
The dependent variable would be any feature of the experimental plants that indicate growth. It could the height, the number of leaves, etc.
The constant variable would be other conditions the experimental plants are subjected to.
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Nitriles can be converted into carboxylic acids. how would you use ir spectroscopy to monitor the progress of this reaction?
Fats or oils are created when the hydroxide group of glycerol combines in a dehydration synthesis process with the carboxyl group of fatty acids.
What is dehydration ?Your body loses more fluids when you are dehydrated than you are taking in. If unattended to, it could get worse and become a serious problem.
When you don't drink enough water or lose more than you take in, you become dehydrated. Sweat, tears, vomiting, urination, and diarrhea all cause fluid loss. Climate, level of physical activity, food, and other variables can all affect how severe dehydration is.
Dark urine, decreased urination, headaches, weariness, dry skin, decreased skin turgor, and poor focus are all indicators of dehydration.
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Complete and balance the following redox reaction in basic solution. Be sure to include the proper phases for all species within the reaction. CIO (aq) + CO2(aq) → CIO₂(g) + CO₂(g)
The balanced redox reaction in basic solution is: \(CIO(aq) + CO_2(aq) + OH^{-(aq)} \rightarrow CIO_2(g) + CO_2(g) + H_2O(l)\)
To balance this redox reaction in basic solution, we first need to identify the oxidation state of each element in the equation. We see that the oxidation state of chlorine changes from +1 to +4, while the oxidation state of carbon changes from +4 to +2.
Next, we balance the equation in acidic solution, as we normally would, and then add OH⁻ to both sides of the equation to neutralize the H⁺ ions and form water molecules. This adds an equal number of H⁺ and OH⁻ ions to both sides of the equation, so the charge balance is maintained.
After balancing the equation in basic solution, we make sure that the number of atoms of each element is the same on both sides, and that the charges are balanced. Finally, we add the phases of each species to complete the equation.
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The area of a square is 200 cm2. What is an
estimation of its side?
a) 20 cm
C) 14 cm
b) 10 cm
d 50 cm
Answer:
14cm
Explanation:
s x s=area
s²=200cm²
s=14.1421356237cm
s=14cm
How many elements are in CaCI2
Answer:
It is made up of 2 elements. The elements are calcium and chlorine.
Explanation:
I just know
if 193 ml of chlorine gas was collected at 21 celsius, what volume would it have if the temperature dropped to 0 celsius
Answer:
New volume of chlorine gas (V2) = 179 ml (Approx)
Explanation:
Given:
Volume of chlorine gas (V1) = 193 ml
Temperature of chlorine gas (T1) = 21°C = 21 + 273 = 294 k
New temperature of chlorine gas (T2) = 0°C = 0 + 273 = 273 k
Find:
New volume of chlorine gas (V2) = ?
Computation:
Using charle's law
V1 / T1 = V2 / T2
193 / 294 = V2 / 273
V2 = 179.21
New volume of chlorine gas (V2) = 179 ml (Approx)
Which of the following is a property of an ionic compound? low boiling point soft malleable high melting point
Answer:
High melting point.
Explanation:
An example of a high melting point would be: 4215 K (3942 °C, 7128 °F).
Answer:
High melting point.
Explanation:
Use the drop-down menus to identify the type of structure being described in each statement. Snakes have remnants of back legs. Bats have the same arm bone structure as cats. Frogs, humans, and whales have a backbone. Bats and moths both have wings, but not a common ancestor
The type of structure :
Snakes have remnants of back legs = Vestigial Structure.
Bats have the same arm bone structure as cats = homologous structure.
Frogs, humans, and whales have a backbone = homologous structure.
Bats and moths both have wings, but not a common ancestor = analogous structure.
The Vestigial Structure is the Genetically found structures and the attributes which have the lost most and the all of their function in the given species. The Homologous structures are those structures from the organisms that will share the common ancestor.
The Analogous structures are the features for the different species which are same in the function and not in the structure.
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Answer:
C, A, A, B
Proof:
A car's speedometer displays the speed of the vehicle
A car's speedometer shows instantaneous speed which is the speed the car is traveling at that instant.
What is speed?Speed is a measure of the ratio of the distance moved by an object or body and the time taken.
Mathematically;
Speed = distance covered / time takenWhen objects are moving, the speed of the object may change
with time. Hence, speed can be measured at a given instant known as instantaneous speed.
Speed over the duration of a journey can also be measured and this is known as average speed.
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Complete question:
Does a car's speedometer show instantaneous speed,average speed, or velocity Explain?
The average human heart beats 2.5 billion times in a lifetime. The average lifespan is 78 years. What is the average heart rate?
SHOW YOUR WORK!!!!!!
This process of heat transfer by conduction would NOT work __________
A) in space.
B) in a solid.
C) under water.
D) in the atmosphere.
Science
Answer:
B and C are the correct answers.
What is the pH of a solution with a [OH-] of 4.1 x 10-3 M?
The pH of the solution is 11.61.
We know that the concentration of hydroxide ions and the concentration of hydrogen ions in any aqueous solution are related by the equation:
\([OH-] * [H+] = 1.0 *10^-14\)
Taking the negative logarithm of both sides of this equation, we get:
\(-pOH + pH = 14.00\)
where pOH is the negative logarithm of the hydroxide ion concentration, and pH is the negative logarithm of the hydrogen ion concentration.
Substituting the given value of [OH-] into the above equation, we can calculate the pOH:
\([OH-] = 4.1 x 10^-3 M\\pOH = -log[OH-] = -log(4.1 * 10^-3) = 2.39\)
Using the relationship between pH and pOH, we can then calculate the pH of the solution:
pH = 14.00 - pOH = 14.00 - 2.39 = 11.61
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All of the following properties of alcohols are affected by hydrogen bonding except
A) molecular weight.
B) boiling point.
C) miscibility with water.
D) ability to dissolve polar substances.
E) none of the above
The property of alcohols that is not affected by hydrogen bonding is molecular weight. Hydrogen bonding is a type of intermolecular force that occurs between hydrogen atoms and highly electronegative atoms such as oxygen, nitrogen, or fluorine. Alcohols have an -OH group, which makes them capable of hydrogen bonding. When alcohols undergo hydrogen bonding, the intermolecular attraction between the molecules increases, which affects various properties of alcohols.
Boiling point and miscibility with water are two properties of alcohols that are affected by hydrogen bonding. Due to the stronger intermolecular forces caused by hydrogen bonding, alcohols have higher boiling points and are more soluble in water.
The ability of alcohols to dissolve polar substances is also affected by hydrogen bonding. Alcohols are able to dissolve polar substances such as sugars, aldehydes, and ketones because of the polar -OH group and the ability to form hydrogen bonds with other polar molecules.
However, molecular weight is not affected by hydrogen bonding. The molecular weight of an alcohol is determined by the sum of the atomic weights of its constituent atoms. It is not influenced by the presence or absence of hydrogen bonding. Therefore, the correct answer is option E, none of the above.
In summary, hydrogen bonding affects the boiling point, miscibility with water, and ability to dissolve polar substances of alcohols, but it does not affect their molecular weight.
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Someone please help! this is the last question
I only need help with B.
1. mol ratio of Al(NO₃)₃ : Na₂CO₃ = 2 : 3
2. Na₂CO₃ as a limiting reactant
Further explanationGiven
Reaction
2 Al(NO₃)₃ + 3 Na₂CO₃ → Al₂(CO₃)₃ + 6 NaNO₃
Required
mol ratio
Limiting reactant
Solution
The reaction coefficient in the chemical equation shows the mole ratio of the components of the compound involved in the reaction (reactants and products)
1. From the equation mol ratio of Al(NO₃)₃ : Na₂CO₃ = 2 : 3
2. mol : coefficient of Al(NO₃)₃ : Na₂CO₃ = 2 mole/2 : 2 mole/3 = 1 : 0.67
Na₂CO₃ as a limiting reactant (smaller)
Which compound(s) in the following chemical reaction is (are) in solution?HClO(aq) + HCl(aq) → Cl (aq) + H2O(1)a.all reactants and productsc. H20(I) onlyb. all productsd all reactants
ANSWER
All reactants
OPTION D
STEP-BY-STEP EXPLANATION:
Firstly, you need to know the meaning of the solution
\(\text{HClO}_{(aq)}+HCl_{(aq)}\rightarrow Cl_{(aq)}+H_2O_{(l)}\)Solution: Solution is defined as a homogenous mixture of two or more components in which particle size is smaller than 1nm.
Solution = solute + solvent
The solute is a substance that is dissolved in the solvent.
An aqueous solution is defined as a solution in which its solvent is water
As you can see from the above-balanced chemical equation, the solutions in the reaction have a subscript (aq) attached to them.
Also, from the reaction, the compounds that are in reactions are the reactants only which are HClO (aq) and HCl (aq)
Hence, the answer is all reactants -------- OPTION D
A solution of NaOH has concentration of 1.2M then mass of NaOH in g/dm3 is
Answer:
A solution of NaOH has concentration 1.2M. Calculate the mass of NaOH in g/dm3 in this solution. = 1.2x 40x 1 = 48 g 3.
The mass of NaOH in the solution having concentration of 1.2 M is 48.00 grams per decimeter cubed (g/dm³).
Concentration refers to the amount of a solute dissolved in a given amount of solvent or solution. It is a measure of how much solute is present in a specific volume or mass of the solution.
Concentration can be expressed in various units, such as molarity (moles of solute per liter of solution), mass percent (mass of solute per 100 grams of solution), parts per million (ppm), and others.
Given:
Concentration of NaOH solution = 1.2 M
The molar mass of NaOH (sodium hydroxide) is:
Na: 22.99 g/mol
O: 16.00 g/mol
H: 1.01 g/mol
Total molar mass of NaOH = 22.99 + 16.00 + 1.01
= 40.00 g/mol
1 mole of NaOH = 40.00 g
1.2 moles of NaOH = 1.2 moles × 40.00 g/mole
= 48.00 g/L
1 L = 1 dm³
So, 48.00 g/L = 48.00 g/dm³
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