Describe the structure of ammonium lauryl sulfate. Refer to the given diagram. Your answer should include the type of bonding, the elements contained, and the size and shape of the molecule. Write a short paragraph.

Metal of the following surfaces does NOT absorb moisture.

The correct option is B.

The presence of a liquid, things like water, even in minute amounts, is referred to as moisture. Examples of locations where small amounts of water can be found include the air (humidity), foods, and some commercial goods. The amount of water vapor in the atmosphere is also alluded to as moisture.

Warm, moist weather that comes in touch with a cool surface, such uninsulated cold water mains, causes moisture to condense into water droplets. Numerous other represent the lowest including cooking, taking a bath, drying clothing, washing the dishes, and others also release moisture into the air.

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The complete question is -

Which of the following surfaces does NOT absorb moisture? *

A-Cardboard

B- Metal

C-Magazine cover

D-Rough wood

Answer:

2 - B, 5 - D, 6 - A

Explanation:

2 - Penicilin was actually discovered on accident!

5 - Microbes were discovered around the mid-1600s

6 - Choice A seems to be correct here, noting that the answers of C and D are marked out and B seems a bit far-fetched (from my current knowledge)

Answer:

120/0.5

=240ohms

For polar molecules :

a) The polarities of the bonds must not cancel each other out  is True.

b) All of the bonds must be polar is false. if we have one polar bond the molecule is polar.

c) there must be at least one nonbonding pair of electrons is false.

d) the molecule must be symmetrical is False.

e) double or triple bonds do not count is false

f) all of the bonds must be nonpolar is false.

g) all of the terminal atoms around a central atom must have different identities is False.

h) at least one bond must be polar is true.

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Volume of the helium in weather balloon at 15 °C with initial volume of 10L and temperature of 5 °C is 30 L

Given that, Initial volume (V1) = 10 L

Initial Temperature (T1) = 5 °C

Final Temperature (T2) = 15 °C

By gas law,

V1 / V2 = T1 / T2 (Pressure constant)

10 / V2 = 5 / 15

V2 = (15 / 5) * 10

V2 = 3 * 10

V2 = 30 L

Thus, the volume of helium in the weather balloon at 15 °C is 30 L

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1.28atm

According to Boyle's law

P1V1 = P2V2

where

P is the pressure

V is the volume

Given the following

P1 = 2atm

V1 = 3.2L

V2 = 5L

Required

Final pressure P2

Substitute

P2 = P1V1/V2

P2 = 2*3.2/5

P2 = 6.4/5

P2 = 1.28atm

Hence the pressure in atm of the expanded gas sample

If a compound rotates plane-polarized light in a clockwise direction, the compound is called dextrorotatory, and is labeled d

If a compound rotates plane-polarized light in a anti- clockwise direction, the compound is called levorotatory compound is labeled as l.

An enantiomers rotate the plane polarized light in clockwise direction or positive direction is called dextrorotatory. given as [(+), d- ]. while enantiomers that rotates plane polarized light in anti - clock wise direction or negative direction is called levorotatory compound . given as [ (-) , l-].

Thus, If a compound rotates plane-polarized light in a clockwise direction, the compound is called dextrorotatory, and is labeled d

If a compound rotates plane-polarized light in a anti- clockwise direction, the compound is called levorotatory compound is labeled as l.

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The student made a mistake in substituting the wrong values of the relative abundance of the isotopes Potassium-39 and Potassium-41. That is why his answer was wrong.

The student exchanged the values of the relative abundance of the isotope values. That is why it has resulted in the wrong value of the average atomic mass. On substituting the correct values using the following formula, we get the atomic mass of the respective isotopes as,

atomic mass = Mass x Relative abundance

atomic mass of K⁴¹₁₉ = 40.962 x 0.0688

the atomic mass of K⁴¹₁₉ = 2.8181856amu

Similarly, for the mass of K₃₉¹⁹ = 38.964 x 0.9312

                                                  = 36.28327amu

Thus the average atomic mass of Potassium is given by,

Average atomic mass of potassium = Mass of K₃₉¹⁹ + Mass of K⁴¹₁₉

The average atomic mass of potassium = 36.2832 +2.8181

The average atomic mass of potassium = 40.962amu

Hence, the correct value of the average atomic mass is thus obtained.

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The arrangement of an atom's or molecule's electrons in atomic or molecular orbitals is known as the electron configuration in atomic physics and quantum chemistry.

One orbital can house a maximum of two electrons, and there are four different types of orbitals (s, p, d, and f). More electrons can be held in the p, d, and f orbitals since they contain various sublevels. Each element's position on the periodic table determines the specific electron configuration of that element. The arrangement of an atom's or molecule's electrons in atomic or molecular orbitals is known as the electron configuration in atomic physics and quantum chemistry.

A standardized notation is used for expressing electron configurations, in which the energy level and type of orbital are written first, followed by the number of electrons in the orbital, which is expressed in superscript. For instance, carbon's (atomic number: 6) electronic configuration is 1s22s22p2.

Hence. The elements are denoted by the  electron configurations are,

1) Beryllium

2) Boron

3) Magnesium

4) Silicon

5) Phosphorus

6) Calcium

7) Nickel

8) Krypton

9) Bromine

10) Strontium

The complete question is,

Determine the elements denoted by the following electron configurations.​

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As you climb to the top of a academic mountain in florida, air pressure decreases from 1 atm to0.75 atm at the peak. what will the partial pressure of oxygen be at the top of the mountain.

Pressure

Pressure( symbol p or P) is the force applied vertical to the face of an object per unit area over which that force is distributed.

Colorful units are used to express pressure. Some of these decide from a unit of force divided by a unit of area; the SI unit of pressure, the pascal( Pa), for illustration, is one newton per forecourt metre( N/ m2); also, the pound- force per forecourt inch( psi) is the traditional unit of pressure in the Homeric and U.S. customary systems. Pressure may also be expressed in terms of standard atmospheric pressure; the atmosphere( atm) is equal to this pressure, and the torr is defined as 1⁄760 of this. Manometric units similar as the centimeter of water, millimeter of mercury, and inch of mercury are used to express pressures in terms of the height of column of a particular fluid in a manometer.

Pressure is the quantum of force applied vertical to the face of an object per unit area. The symbol for it's" p" or P.( 2) The IUPAC recommendation for pressure is a lower- case p.( 3) still, upper- case P is extensively used. The operation of P vs p depends upon the field in which one is working, on the near presence of other symbols for amounts similar as power and instigation, and on writing style.

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Explanation:

mole=mass/molar mass

molar mass of c12H17N4OS

12×12+17+14×4+16+32

=265

molar mass=265

mole=0.02/265

By utilizing ideal gas laws and the conversion of given temperatures into absolute temperatures we can calculate that the pressure of the gas at 89 °C will be 2.59 atm.

Amonton's law (one of ideal gas laws) states that at constant volume and number of moles of the ideal gas, the pressure that the gas exerts is directly proportional to the temperature of the gas. In mathematical form:

[tex]\frac{P_{1} }{T_{1} } = \frac{P_{2} }{T_{2} }[/tex]

P is the pressure of the gas while T is absolute temperature (in Kelvins). First, we convert temperature in Celsius to Kelvins:

T1 = (21 + 273) K = 294 K

T2 = (89 + 273) K = 362 K

Now, we transform the Amonton's law equation so that we can calculate the pressure at the higher temperature:

P2 = T2 * P1 / T1

Finally, we plug the known values into the transformed equation:

P2 = 362 K * 2.10 atm / 294 K = 2.59 atm

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Answer:

Oxytocin is a peptide of nine amino acids (a nonapeptide). 

Explanation:

Answer:Oxytocin is a peptide of nine amino acids (a nonapeptide). The sequence is cysteine - tyrosine - isoleucine - glutamine - asparagine - cysteine - proline - leucine - glycine (CYIQNCPLG).

Explanation:

Answer:

that "equal volumes of all gases, at the same temperature and pressure, have the same number of molecules." For a given mass of an ideal gas, the volume and amount (moles) of the gas are directly proportional if the temperature and pressure are constant.

Strong and Weak Foundations Bases provide a similar problem: a strong base is one that is completely ionized in solution.

Strong and Weak Foundations Bases provide a similar problem: a strong base is one that is completely ionized in solution. A weak base is one that is less than 100% ionized in solution.

Acids and bases are incompatible. Acids and bases will balance one another out. A solution's pH can be changed by acids but not by bases. While bases give hydrogen ions (H+), acids give hydroxide ions (OH-).

The aqueous solution of the salt formed by neutralisation of weak acid and strong base possesses basic nature, while aqueous solution of salt produced by neutralisation of weak base and strong acid possesses acidic nature.

The complete question is:

A strong base or salt in solution exist predominately as electrons in solution.

a) True

b) False

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Answer:

b Atom X = 1; Atom Y = 7

Explanation:

a valence electron is an electron in the outer shell

So X has 1 in outer shell

Y has 7 in outer shell

Answer: Making elephant toothpaste, roasting a marshmallow, And burning a piece of paper are all examples of chemical changes.

Explanation:

A chemical change is when the atoms in something have broken old bonds and made new ones.

Making elephant toothpaste is NOT a physical change because two things are mixed together to make a chemical change and therefore it's a chemical change not a physical change.

Burning a piece of paper is not a physical change because when a paper is burned it turns into ash/dust and it changes its chemical composition. Therefore it's a chemical change, not a physical one

Proton has positive charge whereas neutron has no charge.

Proton is a type of subatomic particle that has a positive charge whereas Neutron is a type of subatomic particle that has no charge.

An atom that has lost one or more number of electrons is known as anion.

Isotopes is defined as an element that have the same number of protons i.e. atomic number but different numbers of neutrons i.e. mass number.

Electron is located outside the nucleus of an atom.

Fluorine is that atom which has 9 number of protons so its atomic number is 9.

Atomic number is related to the number of particles in the nucleus of an atom because in the nucleus, proton is present which shows the atomic number of an atom.

There are three parts of an atom i.e. proton, electron and neutron.

The size of electron is about 2 × 10⁻¹⁰ cm, The size of proton is about 0.84×10⁻¹³ cm and the size of neutron is about 1.7×10⁻¹⁵ meters

Electron has negative charge, proton has positive charge and neutron has no charge.

Yes, we can tell about the element if we know about the charge and the number of electrons in it because different atoms has particular number of electrons.

The diameter of a nucleus in scientific notation is 1.6 x 10⁻¹⁵.

The mass of hydrogen atom in whole number is 0.00000000000000000000000000167.

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These isolated thylakoids are transferred to a ph8 solution in the dark, that the isolated thylakoids produce ATP.

The chloroplasts are exposed to a hypotonic buffer devoid of sorbitol in order to achieve this. While stromal extract (SE) must also be isolated during this preparation if the cpSec1 or cpSRP pathways are to be studied, isolated thylakoids can be used to test any of the translocation pathways.

In the experiment that follows, it is possible to make thylakoid membranes that were isolated from chloroplasts produce ATP without the assistance of photosynthetic electron transport. Thylakoids are taken out of chloroplasts and suspended in a pH 4 buffer.

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Answer:

Water Intake,Food Intake

Explanation:

By using the expression for the equilibrium constant for the reaction and solving the appropriate quadratic equation, we can calculate that the equilibrium concentration of iodine will be 1.77 M.

The balanced reaction equation for this reaction looks like this:

[tex]2 IBr[/tex] → [tex]I_{2}+Br_{2}[/tex]

The expression for the equilibrium constant will look like this:

[tex]K_{c} =\frac{[I_{2} ][Br_{2} ]}{[IBr]^{2} }[/tex]

Because all the volumes are the same, we can just use the moles of all reaction components instead of concentrations. Now, because there was no iodine or bromine when the reaction began, all iodine and bromine present at equilibrium are formed by IBr decomposition, their concentrations will be the same (X). The concentration of IBr will be reduced by 2X, so we can plug that into the equilibrium constant expression:

[tex]8.5=\frac{X^{2} }{(4.14-2X)^{2} }[/tex]

We transform this expression to get a quadratic equation:

33X² - 140.76X + 145.6866 = 0

When we solve for X, one solution is 2.49 M (which is impossible, because 4.14 moles of IBr can create a maximum of 4.14 mol / 2 = 2.07 mol of iodine), and the other (correct) solution is 1.77 M.

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The order of synthetic cycle for generation of fatty acid is Condensation > Reduction > Dehydration > Reduction.

What is fatty acid?

An aliphatic carboxylic acid with a saturated or unsaturated chain is referred to as a fatty acid and is employed in chemistry, particularly in biochemistry. In some species, like microalgae, fatty acids make up a significant portion of the lipids (up to 70% of the total weight). However, in some other creatures, such as triglycerides, phospholipids, and cholesteryl esters, fatty acids are not found in their freestanding form. In all of these forms, fatty acids are essential nutritional sources of energy for animals and essential cellular building components.

The synthetic synthetic cycle for the generation of fatty acids takes place in such a way that at first Condensation happens then Reduction then Dehydration then again Reduction happens.

The cycle of condensation, reduction, dehydration, and reduction continues until palmitoyl‐ACP gets completely made.

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Answer:

The reactants of photosynthesis are carbon dioxide and water.

Answer:

The element copper has naturally occurring isotopes with mass numbers of 63 and 65. The relative abundance and atomic masses are 69.2% for mass = 62.93 amu, and 30.8% for mass = 64.93 amu.

Resistance is inversely proportional to current because R = VI. Option D.

If you increase the applied voltage and don't change the resistance, the current will also increase. The higher the resistance the more strongly the electron interacts with the resistance, slowing it down. Electrons repel each other, so even if more electrons pass through the resistor this cannot be counteracted.

As resistance increases current decreases and all other factors remain constant. Materials with low resistance, such as metals, are called electrical conductors and allow current to flow easily. High-resistance materials such as plastics are called electrical insulators. Current is inversely proportional to resistance. If I fix the voltage across a variable resistor the current that flows is inversely proportional to the resistance.

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Answer:

B) Resistance is inversely proportional to current because R = V/I

Explanation:

Answer:

Arrhenius defined an acid as a compound that increases the concentration of hydrogen ion (H +) in aqueous solution. Many acids are simple compounds that release a hydrogen cation into solution when they dissolve.

A pressure of 210.5 torr will be exerted by the gas if the temperature is raised to 43.1°C.

According to Charles's law P₁/T₁ = P₂/T₂

Given,  P₁ is 127 torr and T₁ is 26°C and T₂ is 43.1°C.

127/ 26 = P₂/ 43.1

P₂ = (127 × 43.1) / 26

P₂ = 5473.7 / 26

P₂ = 210.5 torr

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The control provides a reference value for comparison to samples in which a variable is changed.

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