Maltose is the alpha-1,4 glycosidic linkage of 2 glucose molecules. True or False?

Answer: A-, NA+ And OH-

Explanation: Thank me later

The molecule has three electron pairs and is trigonal planar geometry. Carbonate ion is found in limestone as calcium carbonate.

Each atom is composed of a nucleus and one or greater electrons sure to the nucleus. The nucleus is product of one or more protons and a number of neutrons. best the maximum common form of hydrogen has no neutrons. An atom is the smallest unit of everyday matter that bureaucracy a chemical detail.

An atom is a particle of depend that uniquely defines a chemical element. An atom includes a relevant nucleus this is surrounded via one or extra negatively charged electrons. The nucleus is definitely charged and contains one or extra pretty heavy debris known as protons and neutrons.

An atom itself is made from 3 tiny types of debris referred to as subatomic particles protons, neutrons, and electrons. The protons and the neutrons make up the center of the atom referred to as the nucleus and the electrons fly around above the nucleus in a small cloud.

Learn more about atoms here:-https://brainly.com/question/6258301

#SPJ4

Estimated maximum and minimum thermal conductivity values for the cermet are:
Maximum thermal conductivity = 0.77 x 29 + 0.23 x 64 = 35.33 w/m-k
Minimum thermal conductivity = 0.77 x 64 + 0.23 x 29 = 55.27 w/m-k

To estimate the maximum and minimum thermal conductivity values for a cermet containing 77 vol% carbide particles in a metal matrix, we need to use the rule of mixtures.

The rule of mixtures states that the effective thermal conductivity of a composite material can be calculated as a weighted average of the thermal conductivity values of its constituent materials, where the weight is determined by the volume fraction of each material.

In this case, we have a cermet with 77 vol% carbide particles and 23 vol% metal matrix. Using the rule of mixtures, we can estimate the maximum and minimum thermal conductivity values as follows:

(a) Maximum thermal conductivity:

The maximum thermal conductivity of the cermet would occur if all the carbide particles were perfectly aligned and in contact with each other. In this scenario, the thermal conductivity of the cermet would be equal to the thermal conductivity of the carbide particles themselves, which is 29 w/m-k.

(b) Minimum thermal conductivity:

The minimum thermal conductivity of the cermet would occur if all the carbide particles were completely dispersed within the metal matrix, with no contact between them. In this scenario, the thermal conductivity of the cermet would be equal to the thermal conductivity of the metal matrix, which is 64 w/m-k.

Therefore, the estimated maximum and minimum thermal conductivity values for the cermet are:

Maximum thermal conductivity = 0.77 x 29 + 0.23 x 64 = 35.33 w/m-k
Minimum thermal conductivity = 0.77 x 64 + 0.23 x 29 = 55.27 w/m-k

To know more about thermal conductivity, refer

https://brainly.com/question/29419715

#SPJ11

The calculated maximum wavelength is 495 nm

The energy needed to break a bond and create two atomic or molecular fragments, each containing one of the original shared pair of electrons, is known as the bond dissociation energy. The link between silicon and fluorine, which was previously discussed, is discovered to be the strongest chemical bond. The initial silicon-fluorine bond in a silicon tetrafluoride molecule requires 166 kcal/mol of bond dissociation energy to be broken.

ΔH=+240 kJ/mol

E=242×103/6.022×1023

=4.0186×10−19 J

Now I use the Planck Expression:

E=hf=hc/λ

∴λ=hc

Eλ=6.63×10−34×3×108/4.0186×10-19 m

λ=4.949×10−7 m

λ=495 nm.

Learn more about dissociation energy here-

https://brainly.com/question/20475991

#SPJ4

Answer:

Explanation:

The new volume can be found by using the formula for Boyle's law which is

\(P_1V_1 = P_2V_2\)

Since we're finding the new volume

\(V_2 = \frac{P_1V_1}{P_2} \\\)

We have

\(V_2 = \frac{195000 \times 3.5}{150000} = \frac{682500}{150000} \\ = 4.55\)

We have the final answer as

Hope this helps you

The statement that is true among the options provided is: "An electron may fall back to the ground state in a single step or in multiple steps."

Higher energy levels are attained by excited electrons in atoms. The extra energy is finally released as light when they reach their ground state, though. The electron may return to its ground state in a single step, emitting a photon with a certain wavelength, or it may do so in several phases, releasing photons with various wavelengths.

The following additional options' statements are untrue:

Without having to leave the heat of the flame, excited electrons can return to the ground state. The flame's heat is what initially excite the electrons, yet the atom can still return to its ground state while it is still in the flame.

The claim that only one electron can be excited at a time is untrue since several electrons can be excited simultaneously.

In a flame test, each element emits a variety of recognizable light wavelengths. The energy differences between the excited states and the ground state of various electrons in the atom are reflected in the specific wavelengths that are emitted.

To know more about electrons :

https://brainly.com/question/29654378

#SPJ4

The article aims to highlight the most recent improvements in the PCET procedures for electrocatalysis at clearly characterized electrode–electrolyte interfaces.

Aim : Here, we focus on the most recent developments in the PCET methods for electrocatalysis at clearly defined electrode–electrolyte interfaces.

Method: Since the groundbreaking and ongoing studies made by Frumkin and his colleagues initiated in the 1930s, non-covalent interaction, which is controlled by the cation/anion features, is known to play a crucial role in the interfacial water and adsorbate environments correlated to electrode–electrolyte catalytic properties.

The microscopic perspective of this interaction is still a significant scientific mystery, nevertheless. Recent research based on the well-defined surface and solid-liquid interfacial structure of single-crystal model electrodes revealed novel characteristics of the cation effect.

Practical usage: Designing high-performance electrode and electrolyte materials requires an understanding of the roles played by the electrical double layer (EDL) structure in proton-coupled electron transfer (PCET) electrode processes.

Learn more about  electrode–electrolyte here:

https://brainly.com/question/10427575

#SPJ4

Answer:

Matter can change state when thermal energy is transferred into or out of the substance. Ice melts and liquid water boils as thermal energy is added. Water vapor condenses and liquid water freezes as thermal energy is removed.

Answer:

Molecule

Explanation:

when two or more than two non-metal elements are combined then it form Molecule.

Answer:

docx it is a science document

Answer:

The answer is

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

\(volume = \frac{mass}{density} \)

From the question

mass = 420 g

density = 10.5 g/cm³

The volume is

\(volume = \frac{420}{10.5} \\ \)

We have the final answer as

Hope this helps you

Answer:

a pure compound because mixtures are formed from two or more compounds.

Answer: B. Surface Tension

Explanation:

It is the tension of the surface film of a liquid caused by the attraction of the particles in the surface layer by the bulk of the liquid, which tends to minimize surface area.

Answer

Mass of (H30)2CrO = 38 g

Explanation

Given:

Mass of Sn(CrO4)2 = 43.4 g

Mass of (H3O)2HPO4 = 35.2 g

Required: The mass of (H30)2CrO4 that will be produced

Solution:

Calculate the possible mass that could be produced by each reactant, so as to determine the limiting reagent. Use stoichiometry.

For Sn(CrO4)2:

For (H3O)2HPO4

Sn(CrO4)2 will produce less (H30)2CrO4 therefore, Sn(CrO4)2 is the limiting reagent.

The percent yield of the reaction 2Na + Cl2 -> 2NaCl, where 200 g of chlorine reacts with excess sodium to produce 240 g of sodium chloride, is approximately 64.2%.

To calculate the percent yield, we first need to determine the theoretical yield of sodium chloride (NaCl) from the given amount of chlorine (Cl2). Then, we will compare the theoretical yield to the actual yield, which is the amount of NaCl produced in the reaction.

1. Calculate the moles of Cl2:
Moles of Cl2 = mass of Cl2 / molar mass of Cl2
Moles of Cl2 = 200 g / (35.45 g/mol * 2) = 2.82 mol

2. Determine the moles of NaCl produced based on the balanced equation:
2Na + Cl2 -> 2NaCl
Moles of NaCl = moles of Cl2 * 2 = 2.82 mol * 2 = 5.64 mol

3. Calculate the theoretical yield of NaCl:
Theoretical yield of NaCl = moles of NaCl * molar mass of NaCl
Theoretical yield of NaCl = 5.64 mol * 58.44 g/mol = 329.54 g

4. Calculate the percent yield:
Percent yield = (actual yield / theoretical yield) * 100
Percent yield = (240 g / 329.54 g) * 100 ≈ 64.2%

Therefore, the percent yield for this reaction is approximately 64.2%.

Know more about Percent Yield here:

https://brainly.com/question/17042787

#SPJ11

Answer: 10.63

Explanation: You divide the mass by volume.

Answer:

10.64g/cm³

Explanation:

1cm³ = 1ml

22 × 1cm³ = 22cm³

Density = Mass ÷ Volume

234 ÷ 22

Density = 10.64g/cm³ or 10640kg/m³

Reflecting telescopes are preferred for scientific research because they are better suited for gathering large amounts of light and producing high-quality images. However, refracting telescopes are still popular for amateur astronomers and for viewing objects on Earth.

Reflecting telescopes are different from refracting telescopes because reflecting telescopes use mirrors, whereas refracting telescopes use lenses. The reflecting telescope was invented in 1668 by Sir Isaac Newton, and it has since become one of the most popular types of telescopes.
Reflecting telescopes use a mirror to gather and focus light, while refracting telescopes use a lens to do the same thing. Reflecting telescopes can be made much larger than refracting telescopes because it is easier to make large mirrors than it is to make large lenses. The mirror in a reflecting telescope is placed at the back of the telescope, and it gathers and reflects light back to a secondary mirror, which then reflects the light to the eyepiece. The eyepiece is where the observer looks through the telescope.In contrast, the lens in a refracting telescope is placed at the front of the telescope, and it gathers and bends light as it passes through. The lens focuses the light onto an eyepiece at the back of the telescope. Refracting telescopes are generally smaller than reflecting telescopes because of the difficulty of making large lenses.
Another difference between reflecting and refracting telescopes is the way they are constructed. Reflecting telescopes have a simple tube that houses the mirrors and eyepiece, while refracting telescopes have a more complex design with a long tube that contains the lens and eyepiece.

for such more questions on telescopes

https://brainly.com/question/28359353

#SPJ8

A mixed inhibitor that has a higher affinity for the enzyme compared to the substrate can affect the Michaelis-Menten constant (Km) in enzyme kinetics by increasing the value of Km.

Km is a measure of the substrate concentration required for half-maximal velocity and is a key parameter in describing enzyme catalysis. However, In the presence of a mixed inhibitor, the inhibitor molecule can bind to both the free enzyme and the enzyme-substrate complex with different affinities.

The binding of the inhibitor to the free enzyme reduces the number of active enzyme molecules available for catalysis while binding to the enzyme-substrate complex slows down the catalytic reaction. This leads to a reduction in the effective concentration of the enzyme-substrate complex, which in turn increases the apparent Km value.

In other words, the higher affinity of the mixed inhibitor for the enzyme reduces the efficiency of the enzyme-substrate complex formation, making it more difficult for the substrate to bind to the enzyme, hence increasing the value of Km. Therefore, a mixed inhibitor that has a higher affinity for the enzyme compared to the substrate can cause a decrease in the efficiency of enzyme catalysis, which is reflected in the increase in Km.

Know more about Mixed inhibitor here :

https://brainly.com/question/31590577

#SPJ11

Answer:Protons are positively charged is the correct statement about an atom

I've also corrected the other statements

Atoms contain protons and neutrons in their nucleus

Neutrons posses no charge and are neutral

The nucleon number is the total number of protons and neutrons in a nucleus

Answer:

Rock

Explanation:

Let's calculate the density of each object:

Rock:

\(Density = \frac{mass}{volume}=\frac{8.5\ g}{4.5\ mL}=1.9\ g/mL\)

Pencil:

\(Density = \frac{mass}{volume}=\frac{2.4\ g}{4.5\ mL}=0.53\ g/mL\)

Therefore the rock is denser.

Answer:

In June of 1941, President Roosevelt issued Executive Order 8802, banning discriminatory employment practices by Federal agencies and all unions and companies engaged in war-related work. The order also established the Fair Employment Practices Commission to enforce the new policy.

Explanation:

Executive Order 8802 helped to establish the foundation for Title VII of the 1964 Civil Rights Act and Executive Order 11246 in 1965. This Order prohibited all forms of discrimination in employment and public facilities. Executive Order 8802 lead to future orders that abolished discrimination in public facilities.

Answer:

if an object weighs more than an equal volume of water, it is more dense and will sink, and if it weighs less than an equal volume of water, it is less dense and will float.

Explanation:

Hope that helps

Answer:

i think its c somebody correct me if im wrong. but hope this help

Explanation:

Answer:

4

Explanation:

because use the molar ratio of

ca:h2o

1:2

2;4

so u times it by 2 .

hope this helps:)

Answer:

Bohr thought that electrons orbited the nucleus in quantised orbits. ... In Rutherford's model most of the atom's mass is concentrated into the centre (what we now call the nucleus) and electrons surround the positive mass in something like a cloud. Bohr's most significant contribution was the quantisation of the model.

Explanation:

Answer:

G) It would speed up evaporation.

Explanation:

As the temperature increases, the rate of evaporation also increases.

The ratio for [C\(_5\)H\(_5\)N]/[C\(_5\)H\(_5\)NH⁺] if the solution has the following pH values 4.50 is 6.30.

A buffer is indeed a solution that resists pH fluctuations and contains either a weak acid as well as its salt or perhaps a weak base as well as its salt. To put it another way, a buffer is indeed an aqueous solution that includes a weak base as well as its conjugate acid, or a weak acid as well as its conjugate base.

A buffer may also be referred to as a buffer solution, hydrogen ion buffer, and pH buffer.

pOH =PKb+log[salt]/[base]

pOH =14-pH= 14-4.50=9.5

pKb= -logKb

     =-log(1.7×10⁻⁷)

     =8.7

9.5 =8.7+log[salt]/[base]

9.5 -8.7=log[salt]/[base]

0.8=log[salt]/[base]

[salt]/[base] =10^0.8=6.30

[C\(_5\)H\(_5\)N]/[C\(_5\)H\(_5\)NH⁺]=6.30

Therefore, 6.30 is the value for [C\(_5\)H\(_5\)N]/[C\(_5\)H\(_5\)NH⁺].

To know more about buffer, here:

https://brainly.com/question/29763040

#SPJ1

The scientist can conduct an experiment to determine the amount of base that can be added to a solution before the pH changes.

Here's a step-by-step approach:
1. Prepare a solution with a known pH.
2. Add a small amount of base to the solution and measure the pH using a pH meter.
3. Gradually increase the amount of base added while recording the pH at each step.
4. Observe the point at which the pH starts to change significantly.
5. Repeat the experiment multiple times to ensure accuracy and consistency.
6. Calculate the average amount of base required to cause a noticeable change in pH.
7. This average value will indicate the approximate amount of base that can be added before the pH changes significantly.

For example, if the scientist starts with a solution of pH 7 and notices a significant pH change when 10 mL of base is added, then they can conclude that around 10 mL of base is the threshold before the pH changes.
Remember, the experiment can be repeated with different solutions or bases to gather more data and ensure reliable results. The scientist should also consider using appropriate safety measures and equipment during the experiment.
Overall, this experiment will help the scientist understand the relationship between the amount of base added and the resulting pH change in a solution.

To know more about solution visit:-

https://brainly.com/question/1616939

#SPJ11