Given that an average person burns about 100 calories when running a mile, after eating a candy bar, you must run 2.55 miles to burn it off.
The amount of energy in an item of food or drink is measured in calories.
If a candy bar has 30 g of sugar (which has 4 calories/g) and 15 g of fat (which has 9 calories/g), then the total calories each candy bar has is:
sugar : 30g(4 calories/g) = 120 calories
fat : 15g(9 calories/g) = 135 calories
candy bar = 120 + 135 = 255 calories
If you eat a candy bar that has 255 calories, and an average person can burn 100calories/mile running, then,
x = 255 calories/(100calories/mile)
x = 2.55 miles
where x = number of miles you need to run to burn off the calories
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Balance the following decomposition reactions.
KCl -> K + Cl2
Ag20 -> Ag + 02
Hl -> H2 + l2
Answer:
In explanation
Explanation:
1. 2, 2, 1
2. 2, 4, 1
3. 2, 1, 1
What product should be obtained if benzyne is generated in the presence of 1,3-butadiene?
3-bromo-1-butene is the end product of adding 1 equivalent of HBr to 1,3-butadiene.
What is butene ?The alkene butene, often known as butylene, has the chemical formula C4H8. Any of the several chemicals may be referred to by the word "butene." They are odorless gases that are found in crude oil in trace amounts that are insufficient for practical extraction.
In the manufacturing of rubber and gasoline, 1-butene is used to create a wide range of compounds. Alkylate and polymer gasoline are used to make more than half of the butene produced worldwide. A third is utilized directly as fuel, primarily as fuel gas or blendstock for gasoline, without any conversion.
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How many grams of boric acid (to two decimal places) are required to make 850 ml of the the stock solution?
To prepare 1 M, 850 ml boric acid solution, 52.7 gm solute is reported.
What is stock solution?
Simply said, a stock solution is a concentrated form of the "working solution" you used to conduct your experiment. This is typically done if the more diluted working solution degrades or decomposes quickly over time.
Stock solutions are used to speed up the preparation process, save time and resources, free up space in storage, and increase the precision with which working lower concentration solutions are made. The main benefits of adopting stock solutions are that they are easier to measure and save time when manufacturing solutions.
We know that,
Molarity (M) = Moles of solute ÷ liters of solution
Let's assume to prepare 1M, 850 ml (= 0.85 liter) boric acid solution, X mole solute is required.
So, 1 = X ÷ 0.85
Or,. X = 0.85
Molecule weight of boric acid 62 gm.
So,
1 mole boric acid = 62 gm boric acid
0.85 mole boric acid = 62×0.85 gm. Boric acid
= 52.7 gm.
To prepare 1 M, 850 ml boric acid solution, 52.7 gm solute is reported.
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Why do you wash the aldol condensation product crystals with 4ml acetic acid/ ethanol solution?
The aldol condensation product crystals was washed with a solution of 4% acetic acid in 95% ethanol. Because this combination eliminates the base used in the reaction, it has the ability to slow down the self-condensation process of the carbonyl compound in the aldol reaction.
The aldol reaction is accompanied by the dehydration reaction, which produces conjugated enone. It also contributes to the creation of a carbon-carbon bond. The aldol condensation reaction is an organic synthesis that accounts for the formation of?-hydroxyketone or ?-hydroxyaldehyde from the reaction of an enol or an enolate ion and a carbonyl compound.
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Help ASAP! 50pts! Brainliest for best answer!
The length of a bond, between two atoms, is the distance between the two nuclei of the atoms that is the point of ________.
Covalent inclusion
Maximum Energy
Minimum Energy
Nuclear fission
Answer:
Covalent
Explanation:
A ladder and a ramp are one analogy for quantized vs, continuous theories of energy. 'Think of another analogy to compare the two theories and draw a diagram to represent it.
Quantization means that only specific values are allowed
what are quantized and continuous theories?
If the energy levels are continuous then a particle (or system) can have any energy in that interval. If they are quantized say E1,E2..., then a particle (or system) can have only one of those energies, and not anything in between them.Quantization of energy is not a consequence of Schrödinger equation, instead it is a consequence of confinement. Energy levels in quantum systems are not always quantized. On the other hand, classical systems also exhibits quantization of the energy levels. For example, consider the allowed frequencies of a string with fixed length (confinement) like in a guitar or violin. In such string, the allowed "energy states" corresponds to frequencies (harmonics) which are multiples of a fundamental frequency (first harmonic). Energy level are quantized if wavefunction is confined in finite space. eg; atomic orbital or quantum well. Energy level in solids are continuous while in gases they are quantized.In a solid energy levels are also quantized but the difference between levels decreases as the system size increases. Thus in the thermodynamical limit (large system sizes), these quantized energy levels become a continuum of states.Thus we can conclude that quantization of energy levels appears both in quantum and classical mechanics
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