the sweetness of honey gradually decreases at a high temperature. also, high-fructose corn syrup (a commercial product in which much of the glucose in corn syrup is converted to fructose) is used for sweetening cold drinks but not hot drinks. what chemical property of fructose could account for both of these observations?

Answers

Answer 1

Answer:

Fructose will cyclize to either furanose or pyranose. Increasing the temperature shifts the equilibrium in the direction of furanose, the less sweet form.

Explanation:

The higher the temperature the less sweet since there will be more furanose than pyranose.

Related Questions

Using VSEPR theory, we would expect the three dimensional geometric shape of a molecule of CCl4 to be

A) trigonal planar
B) tetrahedral
C) bent
D) linear

Answers

Tetrahedral. The 4 Cl atoms are going to be equally placed around the central Carbon

aaaa can someone genuinely help me please, :’)

What pressure will be required for neon at 30°C to have the same density as nitrogen at 20°C and 1.0 atm?

Answers

1.5 atm pressure will be required for neon at 30°C to have the same density as nitrogen at 20°C and 1.0 atm.

What does nitrogen gas density mean?

Nitrogen gas has a density of 0.07807 lbs/cubic foot (0.0012506 grams/cubic centimeter) at 32 degrees Fahrenheit and one atmosphere of pressure. At one atmosphere of pressure, nitrogen gas boils at 320.4 degrees Fahrenheit.

Is nitrogen a solid at STP?

Dinitrogen, a colorless and odorless diatomic gas with the formula N2, is created when two of the element's atoms combine at standard temperature and pressure. Around 78% of the atmosphere on Earth is made up of dinitrogen. Diatomic molecules of nitrogen are found and have unusually low melting temperatures (210 °C) and boiling points (196 °C).

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Given the speed of light is 3×10^8m/s calculate the wavelength of the electromagnetic radiation whose frequency is 7.8x10^12Hz. Answer in units of m.

Answers

The wavelength of the electromagnetic radiation is 4.87 × 10⁻⁵ m.

What is the wavelength of an electromagnetic radiation?

The wavelength of an electromagnetic radiation is the distance between successive points in the wave that are in phase.

The wavelength, speed and frequency of a wave are related by the formula below:

Speed = wavelength * frequency

Hence;

Wavelength = speed / frequency

The speed of the wave = 3 × 10⁸ m/s

frequency = 7.8 x 10¹² Hz

Wavelength = 3 × 10⁸ m/s / 7.8 x 10¹² Hz

Wavelength = 4.87 × 10⁻⁵ m

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Examine the graph below. Which of the following statements describing the diagram is TRUE?

A) this is an endothermic reaction

B) energy is being absorbed

C) this is an exothermic reaction

D) the reactants have less energy than the products

Answers

The reaction shown in the given graph is an exothermic reaction. Therefore, option (C) is correct.

What is an exothermic reaction?

An exothermic reaction involves the release of energy in the form of heat or light in the chemical reaction. These reactions can be expressed in a chemical equation as follows:

Reactants → Products + Heat/energy

An exothermic reaction in which energy is released in the form of light or heat and are the opposite of endothermic reactions. The energy is transferred into the surroundings in an exothermic reaction rather than absorbing energy from the surroundings as in an endothermic reaction.

The change in enthalpy ( ΔH) will be negative in an exothermic reaction. The net amount of energy needed to start an exothermic reaction is less than the net amount of energy liberated by the reaction.

In an exothermic reaction, the reactants have higher energy than that of the products. Therefore, an exothermic reaction will have a negative value for the change in enthalpy (ΔH < 0).

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