How does the body use energy from respiration

Explanation:

D mole is a power. .......

[NOBr]2/[NO]2[Br2] is the equilibrium expression for 2NO+Br2⇌2NOBr. Therefore, the correct option is option D.

When the observable qualities, such as colour, pressure, temperature, concentration, etc. do not vary, the process is said to be in equilibrium. As "balance" is the definition of the word "equilibrium," it follows because a chemical reaction reflects a balance among the substances and outcomes involved in the reaction.

In some physical processes, such as the melting of ice at 0°C, where both the two substances are present at equilibrium, the equilibrium state can also be observed. Physical equilibrium refers to the equilibrium that results from physical processes like the melting of solids.  [NOBr]2/[NO]2[Br2] is the equilibrium expression for 2NO+Br2⇌2NOBr.

Therefore, the correct option is option D.

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Answer:

Ideal?

Explanation:

This question is lacking context, but it's most likely looking for ideal. There is an idea of "ideal" gasses, which are gasses the behave according the ideal gas law PV=nRT. The concept is the gasses can get very close to behaving ideally, but there is never a gas the will perfectly obey the ideal gas law. There are many factors that affect this, but I won't get into thoes since that's not what the question asked.

Answer:

Z: Planet was formed after the sun.

Explanation:

Characteristic Z: The planet was formed after the sun cannot be used to help identify the planet since all the planets in the solar system, including Earth, were formed after the sun. Therefore, this characteristic applies to all planets in the solar system, and it cannot be used to distinguish one planet from another.

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During alpha decay, the process of alpha decay results in the atomic number decreasing by two units.

Alpha decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle, which is a helium nucleus.

During alpha decay, the atomic number of the element decreases by two units and the mass number decreases by four units, because an alpha particle has two protons and two neutrons.

The decay of a radioactive element by alpha decay reduces the atomic number by two units and decreases the atomic mass by four units.

Because alpha particles are positively charged helium nuclei with two protons and two neutrons, they contain two fewer electrons than their parent nuclei. The loss of two electrons, or a positive charge of +2, results in a reduction of the atomic number by two units.

Thus, atomic number decreases by 2 units during an alpha decay.

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Answer:

6250

Explanation:

so m=500 and v=5

so v²=25

using the equation we can do 1/2 x 500 x 25 = 6250

1) Chemical formula

2) Mg Lewis structure

3) O2 Lewis structure

4) MgO Lewis structure

5) Chemical formula written as Lewis dot structure

.

The compound with the molecular formula C3H8O that produces a broad signal between 3200 and 3600 cm-1 in its IR spectrum and two signals in its 13C NMR spectrum can be identified as 2-propanol.

The molecular formula C3H8O suggests a compound with three carbon atoms, eight hydrogen atoms, and one oxygen atom. By examining the information given about the IR and 13C NMR spectra, we can determine the structure of the compound.

The broad signal between 3200 and 3600 cm-1 in the IR spectrum corresponds to the O-H stretching vibration. This signal indicates the presence of an alcohol functional group, which consists of an oxygen atom bonded to a carbon atom that is also bonded to three hydrogen atoms.

The two signals observed in the 13C NMR spectrum indicate the presence of three distinct carbon environments in the molecule. This suggests that the compound has a propane backbone (C3H8), with one of the carbon atoms being bonded to the hydroxyl group.

Combining this information, we can conclude that the compound is 2-propanol. Its structure consists of a propane backbone with an attached hydroxyl group, as shown below:

         H

         |

    H - C - C - C - H

        |

        O - H

Therefore, the compound with the molecular formula C3H8O and the described spectral data is 2-propanol.

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The molecule described has five bonded atoms and no lone pairs, giving it a total electron domain of five. The ideal bond angle for a molecule with this electron domain is 120 degrees, and the hybridization of the central atom is sp3d. The polarity of the molecule depends on the identity of the bonded atoms and their respective electronegativities.

The molecule with three bonded atoms and two lone pairs, and an electron domain of 5 is trigonal bipyramidal.

The ideal bond angle for a trigonal bipyramidal molecule is 90° between the axial positions and 120° between the equatorial positions.

The hybridization for this molecule is sp3d.

The polarity of the molecule depends on the electronegativity of the atoms and their arrangement in space. If the bonded atoms are identical and the lone pairs are symmetrically arranged, the molecule will be nonpolar.

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The concentration of ammonia in the 2 L flask, as determined by

titration with 0.200 M hydrochloric acid, is found to be 0.00388 M.

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British thermal units (Btu) are a unit used to measure the amount of heat in fuels or other energy sources.

The amount of heat needed to raise a pound of liquid water's temperature by one degree Fahrenheit at the point where water has its highest density (approximately 39 degrees Fahrenheit).

Temperature is a physical parameter that, with the aid of a certain scale, indicates the kinetic energy and amount of energy transfer from an object or an entity to its environment (surrounding). Different temperature sensors, such as thermocouples, thermistors, and digital temperature sensors, can be used to control or maintain the temperature.

A unit of measurement that shows the amount of energy or heat required to raise the temperature associated with an object's hotness.

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The third law of thermodynamics describes the entropy of a: solid.

The third law of thermodynamics states that the entropy of a pure crystalline substance approaches zero as the temperature approaches absolute zero (0 Kelvin or -273.15 degrees Celsius). This law implies that at absolute zero, a perfectly ordered and pure crystalline solid will have zero entropy.

The third law of thermodynamics is not specific to liquids or gases but applies to solids. In a solid, the molecules are highly ordered and have fixed positions in a regular lattice structure. As the temperature decreases towards absolute zero, the thermal motion of the molecules reduces, and the system becomes more ordered, resulting in a decrease in entropy.

In contrast, liquids and gases have higher entropy compared to solids at absolute zero because their molecules have more freedom of movement and are not as tightly arranged. Therefore, the third law of thermodynamics specifically addresses the entropy of solids and does not apply to liquids or gases.

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Answer:

B

Explanation:

NaNO3 and H2O

(double replacement reaction)

Answer:

kcl,cacl2

Explanation:

The scientific question that can be answered through investigation will be:

"Which of the four types of macromolecules, and in which proportions, are present in the food sample?"

A scientific question is a question that may lead to a hypothesis and help us in. answering (or figuring out) the reason for some observation.

A scientific question simply means a question where a researcher designs a question in order to get an answer to a particular investigation.

According to this question,

Since the researcher wants to know the person responsible for the classroom good mess by determining which macromolecules are present in the mystery food sample, then the question will be "Which of the four types of macromolecules, and in which proportions, are present in the food sample?"

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Answer:

B

Explanation:

just because it feels right and why not

Answer:

I would personally choose A but .....

Explanation:

flip a coin and the letter that came to your mind before you see it is the one to choose .

Answer:

A. In a graduated cylinder, put some quantity of water and measure the initial volume. Then put a coin and measure the volume. To find the volume of the coin, simply subtract the initial volume (water only) from the ending volume (water + coin). To measure the mass, take a dry coin and place it on an electronic scale. Density = mass / volume, so divide the mass by the volume to calculate the density of the coin.

B. When measuring the volume, make sure to look at the graduated cylinder at eye level and read from the bottom of the meniscus.

When an atom from group 2 of the periodic table(say X) reacts with an atom of group 17(say Y), then the general formula is XY₂.

The elements present in group 2 of the periodic table (Be, Mg, Ca, Sr, Ba, Ra) are metals having valency 2. On the other hand, the elements present in group 17 ( F, Cl, Br, I, At, Ts) are halogens or non-metals having valency 1. So, elements from both these groups combine together by transfer of electrons, forming an ionic bond between them.

The general formula is formed by exchange of valencies.

here, valency of X=2, Y=1

Thus, the general formula is XY₂

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Answer:

hope it helps you a little

Answer:

1.03L

Explanation:

M1V1=M2V2

0.200L×18M=3.5M×V1

3.6=3.5M×V1

divide both sides by 3.5M to cancel out on the right

3.6÷3.5M=1.028L

The shortest possible length of the rope is calculated to be 114 feet.

Percent error is a measure of accuracy of measurement, calculation, or estimate, expressed as percentage of the difference between actual or accepted value and measured, calculated, or estimated value.

If the website says the percent error in the length of rope may be up to 5%, it means that the actual length of rope could be either 5% longer or 5% shorter than advertised length.

Let L be advertised length of the rope. The shortest possible length of the rope would be if the actual length is 5% shorter than advertised length, which means that the actual length of the rope would be: L - 0.05L = 0.95L

Shortest possible length = 0.95 x 120 feet = 114 feet

So the shortest possible length of the rope is 114 feet.

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Answer:

It is true , that the tropical zone experiences the trade winds .

Explanation:

TRADE WINDS -: The trade winds or easterlies are the dominant east-to - west permanent winds that flow in the equatorial area of the Planet (between latitudes 30 ° N and 30 ° S). In the Northern Hemisphere, the trade winds blow primarily from the northeast and from the southeast in the Southern Hemisphere, strengthening throughout the winter and when the Arctic oscillation is in its warm phase. Trade winds have been used by sailing ship captains for centuries to cross the world's oceans and have enabled colonial expansion into the Americas and the construction of trade routes across the Atlantic and Pacific oceans. They act as the steering flow for tropical storms in meteorology. developing over the Atlantic , Pacific, and Southern Indian Oceans and landing in North America, Southeast Asia, Madagascar, and East Africa. Under trade wind regimes, shallow cumulus clouds are seen and are capped from being larger by a trade wind inversion induced by downward air aloft from within the subtropical ridge.

When trade winds blow through tropical areas , due to more direct sunlight , air masses heat up across lower latitudes. Those that develop over (continental) land are drier and hotter than those that develop over (maritime) oceans and travel northward to the subtropical ridge 's western periphery. Masses of maritime tropical air are often referred to as masses of commercial air. There are extensive areas of trade winds in all tropical oceans except the northern Indian Ocean.

Hence , the statement is true.

pH of the base solution is 1.52.

Given,

The number of moles of base = 88.4 x 0.2700 = 23.868

The number of moles of acid = 0.4300 x 66.3 = 28.509

After the equivalence point,

Net moles of acid = 28.509 - 23.868

= 4.641mol

Total vol. of solution = 88.4 + 66.3 = 154.7mL

Conc. of Acid = moles/volume = 4.641/154.7 = 0.03M

pH = \(-log[H^+]\) = -Log[0.03]

pH = 1.52

Hence, the pH of the base solution is 1.52.

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"There is not enough oxygen in space to support life," is the right response.

The short answer is that oxygen is brought from Earth by astronauts and cosmonauts (a Russian astronaut), and that oxygen is created by passing electricity through water. (this is called electrolysis). On the Space Station, both the air and the water were initially imported from Earth.

Typically, astronauts restrict their bodies in a small sleeping compartment or sleeping bag while they are sleeping. Since there is nearly no gravity in space, there is no such thing as up or down like there is on earth. Astronauts are able to sleep anyplace since any surface can serve as a floor, wall, or ceiling.

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Explanation:

0.24 grams of LiOH are needed to make 100 ml of a 0.1 M solution

The molecular mass of the gas if 200 mL of gas weighs 0.344 grams at STP is 38.53g/mol. Details on how to calculate molecular mass can be found below.

The molecular mass of a gas can be calculated by using the following expression:

Molecular weight of the gas = mass × volume at STP (22.4L)/ volume of gas

= 0.344 × 22.4/0.2

= 7.7056/0.2

= 38.53g/mol

Therefore, the molecular mass of the gas if 200 mL of gas weighs 0.344 grams at STP is 38.53g/mol.

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The mass of propane, C₃H₈ that will vaporise as a result of absorbing 100 KJ of energy is 280.25 g

1 mole of propane C₃H₈ = (3×12) + (1×8) = 44 g

From the question given above,

15.7 KJ of heat energy vaporised 44 g of propane.

Therefore,

100 KJ of heat energy will vaporise = (100 × 44) / 15.7 = 280.25 g of propane

Thus, 280.25 g of propane were vaporised from the tank.

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Answer:

The process of turning from liquid into vapor.

Explanation:

Methylotrophy refers to the microbial oxidation of organic compounds containing a single carbon atom, specifically compounds known as methyl compounds, for growth.

Microorganisms capable of methylotrophy possess enzymes called methylotrophic enzymes that enable them to utilize and metabolize methyl compounds as a carbon and energy source. These methyl compounds include methanol (CH3OH), methylamine (CH3NH2), dimethylamine ((CH3)2NH), trimethylamine ((CH3)3N), and methane (CH4).

Methylotrophic microorganisms play important roles in various ecological niches and biogeochemical cycles. They can be found in diverse environments such as soil, freshwater, marine ecosystems, and even the gastrointestinal tracts of animals.

Methylotrophy offers unique metabolic capabilities for microorganisms, allowing them to thrive in environments where traditional carbon sources like sugars or organic acids may be limited. The microbial oxidation of methyl compounds proceeds through specific pathways and enzymatic reactions that allow the organisms to extract energy and generate necessary cellular components.

Overall, methylotrophy represents a specialized metabolic strategy employed by microorganisms to utilize single-carbon compounds like methanol, methylamine, dimethylamine, trimethylamine, and methane as carbon and energy sources, contributing to the diversity and functioning of ecosystems

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Answer:

Function A: +3

Function B: +2

y intercept is greater in Function B, the value is 16

Explanation: