Maltose has a (1→4) α linkage between glucose and ________. xylulose mannose galactose glucose

The final temperature of the mixed water will be approximately 311.3°C.

To solve this problem, we can use the principle of heat transfer, which states that heat will flow from the hotter object to the colder object until they reach thermal equilibrium at the same temperature.

The amount of heat lost by the hot water will be equal to the amount of heat gained by the cold water. This can be expressed mathematically as:

Qlost = Qgain

where Q is the amount of heat, and subscripts h and c denote the hot and cold water, respectively.

The amount of heat gained or lost can be calculated using the formula:

Q = m * c * ΔT

where m is the mass of the water, c is the specific heat capacity of water (4.184 J/g°C), and ΔT is the change in temperature.

Let's first calculate the amount of heat lost by the hot water:

Qlost = m_h * c * (T_h - T_f)

where T_f is the final temperature of the mixed water.

Substituting the values given in the problem, we get:

Qlost = 75.0 g * 4.184 J/g°C * (73.7°C - T_f)

Next, let's calculate the amount of heat gained by the cold water:

Qgain = m_c * c * (T_f - T_c)

Substituting the values given in the problem, we get:

Qgain = 100.0 g * 4.184 J/g°C * (T_f - 24.5°C)

Since Qlost = Qgain, we can set the two equations equal to each other and solve for T_f:

75.0 g * 4.184 J/g°C * (73.7°C - T_f) = 100.0 g * 4.184 J/g°C * (T_f - 24.5°C)

Simplifying the equation, we get:

31155 J - 311.55 T_f = 4184 T_f - 102584 J

Combining like terms, we get:

429.55 T_f = 133739 J

Solving for T_f, we get:

T_f = 311.3°C

Therefore, the final temperature of the mixed water will be approximately 311.3°C.

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Answer

C) no energy is lost; the total amount of energy remains the same.

Explanation

The law of conservation of energy states that "The energy can neither be created nor destroyed - only converted from one form of energy to another." Therefore some energy will be used for metabolism while the other can be used for other properties and some can be stored.

Answer:

1 grams NH3 is equal to 0.058718113128665 mole. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between grams NH3 and mole.

Explanation:

V2 = 2.499 2.5 L is the sample's volume when its temperature is raised to 30 °C and its pressure is lowered to 90 kilopascals.

What does the word "volume" actually mean?

The volume of an item is the space occupied inside its three-dimensional boundaries. A other word for it is the object's capacity.

What is the volume of the liquid?

The volume of liquid measured in a vessel's standard units is known as the liquid measurement. Infant milk bottle with milliliter measurement indications and juice bottle with a 1 liter capacity are two examples of vessels that have a "capacity" or "volume."

As,

Gas constant R is constant, so, Ideal gas equation can be written as,

                                        P₁ V₁ / T₁  =  P₂ V₂ / T₂

Solving for V₂,

                                          V₂  =  (P₁ × V₁ × T₂) ÷ (T₁ × P₂)

Putting Values,

                             V₂  =  (101.325 KPa × 2 L × 303 K) ÷ (273 K × 90 KPa)

                             V₂  =  61402.95 ÷ 24570

                             V₂  =  2.499 ≈ 2.5 L

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Answer:

a: iron is a substance

Explanation:

because its hard and brittle and classified as a metal

1. decantation

2. 2O₂

3. intensive

4. Pure Substance

5. 15O₂

6. homogenous

7. Solubility

8. mixture

9. extensive

10. distillation

Answer:

They're called free electrons.

The particle Y marked in the given diagram is electron and surrounding circles indicates metal atom or ions. Free electrons in metal lattice locates at the interstices of the crystal.

Metals are electron rich elements exhibit higher thermal electrical conductivity. Metals are a pool of ions or electrons and therefore they form bonds with electronegative elements by donating electrons.

The interstitial sites of metal crystal lattice are occupied with free electrons and they can be transited to another sites or can be excited to get conductivity.

The electron transition from interstices provide the metal lattice some colors. The region from which an electron is transited is called F-center.

Therefore, the particle Y shown in the interstices of the metal lattice is electron.

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The proper resonance structure of benzaldehyde that best illustrates why it is a moderately deactivating substituent is option c) C.

Benzaldehyde (C₆H₅CHO) has a moderately deactivating substituent due to the presence of the carbonyl group (-C=O). In resonance structures, the double bond can shift, allowing electron delocalization.

In option c) C, the double bond in the carbonyl group (-C=O) is shifted towards the oxygen atom, resulting in a resonance structure where the oxygen has a negative charge (O⁻) and the carbon has a positive charge (C⁺).

This resonance structure indicates that the oxygen atom withdraws electron density from the benzene ring, making it less electron-rich and less reactive. The withdrawal of electron density by the carbonyl group decreases the reactivity of the benzene ring towards electrophilic substitution reactions.

This is why benzaldehyde is considered a moderately deactivating substituent.

Therefore, option c) C is the proper resonance structure that best illustrates why benzaldehyde is a moderately deactivating substituent.

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Answer:

3/4

Explanation:

Answer:

3/4

Explanation:

Got it right on Khan Academy

Brainlest if Correct

Answer:

D. heat flows into the system and its internal energy increas

Explanation:

The question defines the system as the piece of gold.  The answer will depend on the gold's perspective of what is happening.  If we assume room temperature to be cooler than \(100^{o} C\), then the gold will experience energy coming in until the tempeartures of both the water and gold are the same.  As heat flows into the gold, its internal energy will increase.  Option D seems to address both processes correctly.

If the absorbance of an experiment is greater than 1, it suggests that there is excessive light in the sample, which can lead to incorrect results.

To correct for this, the experimental procedure can be modified as follows:

Reduce the exposure time: Increasing the exposure time in a spectrophotometer will increase the absorbance reading, especially if there is excessive light in the sample. By reducing the exposure time, the absorbance reading will decrease, providing a more accurate measurement of the sample's optical properties.

Use a black background: The background of a spectrophotometer is the light that is present in the instrument itself, and it can contribute to the overall absorbance reading. To correct for this, a black background can be used, which will absorb most of the light and minimize the contribution to the absorbance reading.

Use a cuvette with a smaller path length: The path length of a cuvette is the distance that light travels through the sample to reach the detector. If the path length is too long, it can lead to errors in the absorbance reading. By using a cuvette with a smaller path length, the effect of excessive light can be minimized, resulting in a more accurate measurement.

Use a narrower bandwidth: In some cases, the absorbance reading may be high due to the presence of narrow bands of light in the spectrum. By using a narrower bandwidth, the instrument can measure only the bands of light that are relevant to the experiment, reducing the contribution of excessive light to the absorbance reading.

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Answer:

Unbalanced forces are forces whose net amount is not zero.

This can take place when two equal forces are acting in the same direction or opposite direction but with different forces.

Unbalanced forces make some change in the position of the object on which force is exerted.

Answer:

This can take place when two equal forces are acting in the same direction or opposite direction but with different forces.

Unbalanced forces make some change in the position of the object on which force is exerted.

Actually, no. While their mass may be the same (1kg), the volume of lead is a lot smaller than that of feathers. As there is the same mass stuffed in a smaller space, it must be denser. The density of water is 1 g/cm3, so if the density of the lead is more than 1g/cm3, it has to sink

Water is an example of a balanced synthesis equation: 2 H2(g) + O2(g) → 2 H2O(g). The number of atoms in the reactants and the number of atoms in the products must balance in a chemical equation.

A chemical reaction equation is said to be balanced if both the reactants and the products have the same total charge and the same number of atoms in the reaction. In other words, both sides of the reaction have an equal mass and charge balance.

The Law of Conservation of Mass states that mass cannot be created or destroyed in a chemical reaction. On the left and right sides of a balanced chemical equation, there are an equal number of atoms of each element.

Therefore,

Water: 2 H2(g) + O2(g) → 2 H2O(g)

2K + 2H2O → 2KOH + H.

NaCN ( a q ) + HBr ( a q ) → NaBr ( a q ) + HCN ( g )

2HgO(s)→2Hg(l)+O2(g)

2CH3OH + 3O2 → 4H2O + 2CO2

HCl(aq)+NaOH(aq)⇌NaCl(aq)+H2O

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Answer:

B: Magma

Explanation:

technically magma is the name for the hot molten rock (mixed with gases and mineral crystals) that collects in chambers beneath the Earth's crust.

The crust has been the upper layer of the earth's geosphere. It has been characterized by the presence of melted rocks and minerals that are called magma. Thus, option A is correct.

Magma has been defined as the hot semi-liquid president beneath the earth's surface in the crust layer. It has a very high temperature and is known to have many metals and minerals dissolved in it. The magma comprises metals minerals, dissolved gases, etc.

When the magma from the magma chambers flows outwards on the earth's surface then it is called lava. This lava on cooling produces igneous rocks. This event of magma explosion and lava formation along with other gases from a mountainous surface is called volcanic eruption.

Therefore, option A. melted rock and minerals in Earth's crust is called magma.

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Answer:

team 25 N because the force is more

Answer:

1.john dalton

2.jj.thomson

3.robert millikan

4.niels bohr

5.earnest Rutherford

6.albert Einstein

Explanation:

I just did this assignment a couple of weeks ago ur welcome.

Answer: John Dalton - Matter made of indivisible atoms

J.J. Thomson - Atoms contain negatively charged particles

Robert Millikan - Measured the charge of an electron

Niels Bohr - Atoms contain mostly empty space

Ernest Rutherford - Atoms contain nuclei with electrons orbiting

Albert Einstein - Light exists as photon packets; one photon can remove one electron from an atom

Visible light and radio waves are both examples of electromagnetic radiation, which has a dual nature, possessing the properties of both particles and waves.

Electromagnetic radiation (EM radiation) is a type of energy that is produced by the movement of electrically charged particles traveling through space or matter. Electromagnetic radiation is a type of radiation that includes radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma radiation. It's an oscillating electric and magnetic field that propagates through space at the speed of light.

Electromagnetic radiation exhibits the characteristics of both a particle and a wave. The wave nature of electromagnetic radiation can be characterized by its frequency, wavelength, and amplitude. The frequency of a wave is the number of oscillations per second, which is measured in hertz (Hz). The wavelength of a wave is the distance between two consecutive peaks or troughs, which is measured in meters (m). The amplitude of a wave is the height of its crest or trough, which is measured in units of power, such as watts (W).

The particle nature of electromagnetic radiation can be characterized by its energy and momentum. Electromagnetic radiation consists of particles known as photons, which are massless and travel at the speed of light.  The energy of a photon is proportional to its frequency, and its momentum is proportional to its wavelength.

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CsBr has a larger lattice energy than LiCl because Cs+ has a larger ionic radius and a greater charge than Li+.

The lattice energy of an ionic compound is determined by the strength of the electrostatic attraction between the ions in the solid crystal lattice. This attraction is influenced by the charges on the ions and the distance between them. The larger the charge on the ions, the greater the lattice energy, and the smaller the distance between them, the greater the lattice energy.

Br- also has a greater charge density than Cl-, making the electrostatic attraction between Cs+ and Br- stronger than that between Li+ and Cl-. Therefore, CsBr has a higher lattice energy than LiCl.

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To determine the rate law for the reaction 2 NO(g) + O₂(g) → 2 NO₂(g), the initial rates of reaction were measured with different initial concentrations of NO and O₂. The results are shown below:

Experiment | [NO] (M) | [O₂] (M) | Initial rate (M/s)
Copy code
1     | 0.02     | 0.02     | 1.0×10^-6
2     | 0.04     | 0.02     | 4.0×10^-6
3     | 0.02     | 0.04     | 2.0×10^-6
4     | 0.04     | 0.04     | 8.0×10^-6
Based on the data, the rate law can be determined by comparing the effect of changes in reactant concentration on the initial rate of reaction. For this reaction, the rate law is second order overall, which means that the exponents in the rate law expression must add up to 2.

To determine the exponents for each reactant, we can use the method of initial rates. For example, comparing experiments 1 and 2, we see that the initial rate doubles when the concentration of NO is doubled, while the concentration of O₂ remains constant.

This suggests that the rate is first order with respect to NO. Similarly, comparing experiments 1 and 3, we see that the initial rate doubles when the concentration of O₂ is doubled, while the concentration of NO remains constant. This suggests that the rate is also first order with respect to O₂.

Putting these observations together, we can write the rate law as:
rate = k[NO][O₂]

where k is the rate constant. Answer choice B is correct.

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a) Melting: An example of melting that occurs in our everyday life is when we heat butter on a stovetop.

b) Freezing: Freezing is the process in which a liquid transforms into a solid upon cooling.

c) Condensation: One example of condensation that we encounter regularly is when water droplets form on the surface of a cold drink on a hot day.

d) Evaporation: Evaporation is the process by which a liquid transforms into a gas or vapor.

e) Sublimation: Sublimation refers to the transformation of a substance directly from a solid to a gas without passing through the liquid state.

a) Melting:  Butter is a solid at room temperature, but when heat is applied, it melts into a liquid. This change is a result of the increase in temperature, which provides enough energy to overcome the intermolecular forces holding the butter molecules together.

b) Freezing:Eventually, the temperature reaches the freezing point of water (0°C or 32°F), at which the water molecules slow down and arrange themselves into a regular, crystalline structure. This transformation from a liquid to a solid state is accompanied by the release of heat energy.

c) Condensation: As the temperature decreases, the air's capacity to hold moisture decreases, causing the water vapor in the air to condense into liquid water droplets. This process occurs due to the transfer of heat energy from the warm air to the cold surface, leading to the saturation of the air and the conversion of water vapor into liquid form.

d) Evaporation:  As the sun's heat energy is absorbed by the water molecules on the clothes' surface, their kinetic energy increases, causing them to break free from the liquid phase and escape into the surrounding air as water vapor. This process occurs because the molecules at the liquid surface with sufficient energy can overcome the attractive forces within the liquid and enter the gas phase.

e) Sublimation: Sublimation refers to the transformation of a substance directly from a solid to a gas without passing through the liquid state. An example of sublimation is the process of dry ice (solid carbon dioxide) converting into carbon dioxide gas.

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A process that approaching equilibrium will have a constant universal value.

Equilibrium constant value is the ration of the concentration of the product over reactant. we can use the value of K to predict whether the reactant and product of the reaction are at equilibrium or not. When a reaction approach equilibrium both the forward and reverse reaction are occuing. At equilibrium, the foreward and reverse reaction are at the same rate. That means when the has reached a point where the concentration of the reactant and product remains unchanged with time. It is because both the reaction have same rate. The value of the equilibrium is the ratio of the concentration of the product over the reactant.

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The size of micropipette that you would select to deliver 215 microliters would be a micropipette with a volume range of 200-1000 microliters.

What is a micropipette?

A micropipette is a laboratory instrument used to measure and dispense small volumes of liquid, typically in the range of microliters (µL) or nanoliters (nL). They are commonly used in chemistry, biology, and biochemistry experiments, as well as in clinical and industrial settings.

Micropipettes consist of a handle, a digital or manual volume adjustment mechanism, and a tip that is placed into the liquid to be dispensed. They work by creating a vacuum or positive pressure inside the tip, which draws or pushes the liquid out of the tip.

Micropipettes come in different volume ranges and it is important to select the right one to ensure accurate delivery of the desired volume. For example, a micropipette with a volume range of 2-10 microliters would not be suitable for delivering 215 microliters, while a micropipette with a volume range of 200-1000 microliters would be more appropriate.

It's also important to note that, even if the micropipette is able to deliver 215 microliters, you should always check the calibration of the micropipette before use, to make sure that it's delivering the correct volume.

Hence, a micropipette with a volume range of 200-1000 microliters is suitable to deliver 215 microliters.

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Answer:

Explanation: when electric current is passed through water, water dissociates into hydrogen and oxygen. Hydrogen is deposited over negative pole and oxygen is deposited over positive pole. Deposition of hydrogen and oxygen at different poles is visible in the form of bubbles.

Familiarizing and determining the reactant and product of a chemical reaction is important because reactant and product are the two main component of the chemical reaction.

All the chemical reactions involves the reactant and product. chemical reactions are comprised of reactant and product. Reactants are substances that start a chemical reaction. Products are substances that are produced in the reaction. The relationship between reactants and products in a chemical reaction can be represented by a chemical equation that has this general form,

          Reactants → Products

The chemical formula allows us to give the scientific name to the substance. The chemical formula allows us to predict the nature and properties of the substance. The chemical formula allows us to write balanced chemical equations.

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Among the given options, the functional group that cannot hydrogen bond with itself is: 1) Ethers Ethers, which have the general formula R-O-R', consist of two alkyl or aryl groups bonded to an oxygen atom.

While oxygen is capable of forming hydrogen bonds with hydrogen atoms from other functional groups, ethers themselves do not have hydrogen atoms directly bonded to the oxygen atom. As a result, ethers lack the necessary hydrogen bonding donor or acceptor sites required for intermolecular hydrogen bonding.

2) Tertiary amines: Although they lack a hydrogen atom directly bonded to the nitrogen atom, they can still participate in hydrogen bonding as hydrogen bond acceptors.

3) Esters: The oxygen atom in the ester functional group can act as both a hydrogen bond donor and acceptor, enabling intermolecular hydrogen bonding.

4) Carboxylic acids: Carboxylic acids have a hydrogen atom bonded to the oxygen of the carboxyl group, making them capable of forming hydrogen bonds with other carboxylic acid molecules through the oxygen and hydrogen atoms.

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Answer:

absotutately right

Explanation:

What is the pH color scale?

The pH scale runs from 0 to 14, with each number assigned a different color. At the bottom of the scale sits red, which represents the most acidic, and a dark blue at its opposite end represents 14 and alkalinity. In the middle zone, the pH scale becomes neutral

The pH of the solution could be 10. The basic solution has a pH value of more than 7.

Litmus paper helps us qualitatively determine a substance as an acid or base. For any substance to be a base, blue litmus must remain blue.

The pH scale ranges from 0 to 14 and anything below 7.0 is acidic and anything above 7.0 is alkaline or basic.

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Put the numbers into your calculator to find the answer! 90 x 32, then divide by 18.02 x 2. Estimation can tell me that the answer is 79.9, or 80!