What makes alcohols different from other organic molecules structurally?.

Answer:

may be mp3 player......

Answer:

mp3 player

Explanation:

Neon sign contains Neon

Flash camera contains Xenon

Helium balloon contains Helium

There are two types of isomers for [Cr(CO)₃(NH₃)₃]₃ [Cr(CO)₃(NH₃)₃]₃. These are positional isomers and geometric isomers.

Positional isomers are isomers that have the same atoms but are arranged in a different position in the molecule. In this case, [Cr(CO)₃(NH₃)₃]₃ [Cr(CO)₃(NH₃)₃]₃ has two positional isomers, which are formed by changing the position of the nitrogen atoms in the NH₃ ligands.

Geometric isomers, on the other hand, have the same atoms and are arranged in the same position, but differ in the spatial arrangement of their atoms due to the presence of a double bond or a chiral center. [Cr(CO)₃(NH₃)₃]₃ [Cr(CO)₃(NH₃)₃]₃ does not have any geometric isomers as there are no double bonds or chiral centers present in the molecule.

In summary, [Cr(CO)₃(NH₃)₃]₃ [Cr(CO)₃(NH₃)₃]₃ has two positional isomers and no geometric isomers.

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Answer:

For any multicellular organism to survive, different cells must work together. The right type of cell must be in the right place to do the work that needs to be done. Organization starts with the cell. Cells in multicellular organisms are specialized for a specific function.

Explanation:

Answer:

Cells in multicellular organisms are organised into tissues and tissues are organised into organs, organs are organised into organ system, and finally, organ systems are organised into an organism

Answer:

Looks like a mitrochondria

Explanation:

In a titration of a weak acid with a strong base, the concentration of the weak acid and its conjugate base are approximately equal at the halfway point of the titration, also known as the half-equivalence point.

At the beginning of the titration, the solution contains only the weak acid and its concentration is high. As the strong base is added, it reacts with the weak acid to form its conjugate base and water. The concentration of the weak acid gradually decreases while the concentration of the conjugate base increases until it reaches the halfway point.

At the halfway point, half of the weak acid has been neutralized by the strong base, and half remains in the solution. At this point, the concentrations of the weak acid and its conjugate base are approximately equal, and the pH of the solution is equal to the pKa of the weak acid. After the half-equivalence point, the concentration of the conjugate base becomes higher than the concentration of the weak acid, and the pH of the solution starts to rise more rapidly.

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The percent activity of the radioactive isotope cobalt-60 remaining after 2 half-lives IS 25%

The percent activity of a radioactive isotope remaining after a certain number of half-lives can be calculated using the following formula:

Percent Activity Remaining = (1/2)^(Number of Half-Lives) * 100

In this case, we are given that 2 half-lives have passed.

Number of Half-Lives = 2

Let's calculate the percent activity remaining:
Percent Activity Remaining = (1/2)^(2) * 100

= (1/4) * 100

= 25%

Therefore, the percent activity of the radioactive isotope cobalt-60 remaining after 2 half-lives is 25%.

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Gas that has increased in our atmosphere from 300 parts to 410 parts since 1950 is : 2) carbon dioxide (CO₂). It first exceeded 300 parts per million threshold in the 1950s and today it is over 410 parts per million.

The concentration of carbon dioxide in the atmosphere is currently nearly 412 parts per million. This shows a 47 percent increase since the beginning of the Industrial Age when the concentration was nearly 280 ppm.

The atmospheric level of carbon dioxide has been rising since the 1960's. In 2021, atmospheric carbon dioxide levels reached 416.45 parts per million in comparison to 1960 levels which was 316.91 parts per million.

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Answer:

Force of gravity,

Weak nuclear force

close,

Strong nuclear force

done,

Electrostatic force is the correct answer

Sorry I'm a bit late, but hopefully this helps someone else :)

The empirical formula for a compound that contains 1.656 g C, 0.414 g H, and 2.208 g O is C2H5O2.

The empirical formula can be determined using the following steps:

Convert the mass of each element to moles.

To do this, divide the mass of each element by its molar mass.

The molar masses of C, H, and O are 12.01 g/mol, 1.01 g/mol, and 16.00 g/mol, respectively.

C: 1.656 g / 12.01 g/mol = 0.138 mol

H: 0.414 g / 1.01 g/mol = 0.410 mol

O: 2.208 g / 16.00 g/mol = 0.138 mol2.

Divide each mole value by the smallest mole value to get the simplest ratio of the atoms in the compound.

C: 0.138 mol / 0.138 mol = 1

H: 0.410 mol / 0.138 mol = 2.97

O: 0.138 mol / 0.138 mol = 1

The empirical formula is therefore C2H5O2, with subscripts of 2, 5, and 2 for carbon, hydrogen, and oxygen, respectively.

Since these subscripts cannot be reduced any further, this is the simplest ratio of the atoms in the compound.

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Answer:

D

Explanation:

The matter is being conserved because the equal number of atoms of each element in the reactants and products, and the total mass of the reactants is equal to the total mass of the products. Therefore, option (A) is correct.

One or more initial substances change into different substances in any chemical change. Both the initial and final substances are made up of atoms as all matter is made up of atoms.

According to the law of conservation of matter, matter can neither be created nor destroyed, we just can convert it from one form to another. So the same number and kind of atoms before and after the chemical change are present.

According to this law, the total mass of the reactants in a chemical reaction must be equal to the total mass of products for a low-energy thermodynamic process.

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Answer:

I am pretty sure it is An exothermic reaction has reactants that are lower in energy than products because energy is released to form the products.

Hope i could help and please mark me

The reaction is exothermic because the total energy released by the products is greater than the energy absorbed in the reactants.

The exothermic reactions are those in which heat and light is released to its surrounding.

In an exothermic reaction, the standard enthalpy is always negative.

Some examples are burning sugar, burning of candles, rusting of iron.

Thus, the correct option is D, The reaction is exothermic because the total energy released by the products is greater than the energy absorbed in the reactants.

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Answer: The circulatory system.

Explanation: The circulatory system, which is part of the "cardiovascular" system, is one of the eleven organ systems of the human body. Its main function is to transport nutrients to cells and wastes from cells (Figure 3.4. 1). This system consists of the heart, blood, and blood vessels.

The blood cells carry nutrients from food to the rest of the cells in the body.

The human circulatory system moves important nutrients and minerals throughout the body and metabolic waste products out from the body. The human circulatory system contains blood, blood vessels, heart, and lymph.

The human circulatory system provides essential nutrients, minerals, oxygen, and hormones to different parts of the body and is responsible for collecting toxins from the cells and tissues to be purified or eliminated from the body.

The human circulatory system contains a wide network of blood vessels. These constitute arteries, veins, and capillaries. The primary function of blood vessels is to transport nutrients and oxygenated blood to all parts of the body.

The Circulatory system helps in sustaining all the organ systems and transports blood, nutrients, oxygen, and hormones throughout the body. It secures cells from pathogens and acts as an interface for cell to cell interaction.

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The Lewis structure of H2S, or hydrogen sulfide, can be drawn as follows: First, the central atom sulfur (S) is surrounded by two hydrogen (H) atoms.

Since sulfur has six valence electrons and each hydrogen atom has one valence electron, the total number of valence electrons in the H2S molecule is:

6 (sulfur) + 2(1 electron per hydrogen) = 8 electrons

To draw the Lewis structure, we first place the atoms in a linear arrangement, with sulfur in the center and the hydrogen atoms on either side. Each hydrogen atom forms a single bond with the sulfur atom, and each bond contains two electrons. This uses up four of the eight available valence electrons, leaving four more to be placed on the sulfur atom. To complete the octet of the sulfur atom, we add two lone pairs of electrons to it. These lone pairs are represented as two dots around the sulfur atom. The Lewis structure of H2S is then:

H

|

H—S—H

|

: :

In this structure, the sulfur atom has a complete octet of valence electrons (two bonding pairs and two lone pairs), and each hydrogen atom has a full valence shell with two electrons. This structure satisfies the octet rule, which states that atoms tend to bond in such a way as to achieve a full outer shell of eight electrons.

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Answer:

The balanced chemical equation you provided is:

Zn + 2HCl → ZnCl₂ + H₂

From the equation, we can see that for every 1 mole of zinc (Zn) reacting, 1 mole of hydrogen gas (H₂) is produced. Therefore, the mole ratio of zinc to hydrogen is 1:1.

If you have 3 moles of zinc, you will produce an equal number of moles of hydrogen gas. Therefore, when 3 moles of zinc react with an excess of hydrochloric acid, 3 moles of hydrogen gas will be produced.

Explanation:

Answer:

Play what exactly???????

Answer:

It’s caused by a disturbance.

It requires a medium to travel.

Explanation:

A wave is an unsettling influence that sends energy starting with one point then onto the next. It does no essentially convey the particles or matter of the medium.  

Waves typically conveys energy. It is this energy they use in making aggravations.  

Not all waves conveys matter; a genuine model is electromagnetic waves. Additionally, electromagnetic waves don't need a mode for proliferation.

Answer: The only answer that is NOT true is that waves carry matter.

Explanation:

Waves are caused by a disturbance, require a medium to travel (by definition) and carry energy.

If you're talking about electromagnetic waves tho, those do not require a medium. Waves in general DO require a medium

Answer:

Explanation:

jsjshwanjakansksnsnnanjaja

A researcher uses several procedures to separate a rock sample into different chemicals. A mass of 50 grams of one chemical is produced. If this chemical cannot be separated into other chemicals, then it is best described as the element.

The element is pure form of the substance. If this chemical cannot be separated into other chemicals, then it is an element. element is a substance which can not be further broken into simpler substance.

Thus, A researcher uses several procedures to separate a rock sample into different chemicals. A mass of 50 grams of one chemical is produced. If this chemical cannot be separated into other chemicals, then it is best described as the element.

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The gas occupies a volume of 1.28 L in its final state, which is option (c).

We can solve this problem using the combined gas law:

(P1V1/T1) = (P2V2/T2)

where P1, V1, and T1 are the initial pressure, volume, and temperature, respectively, and P2, V2, and T2 are the final pressure, volume, and temperature, respectively.

Plugging in the given values, we have:

(3.0 atm)(2.0 L)/(300 K) = (5.0 atm)(V2)/(320 K)

Solving for V2, we get:

V2 = (3.0 atm)(2.0 L)(320 K)/(5.0 atm)(300 K) = 1.28 L

Therefore, the gas occupies a volume of 1.28 L in its final state, which is option (c).

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Answer:

The first one is: 1602.68

The second one is: 72.8

The third one is: 2.11764705882

Hope this helps!

Sometimes the instructions say to round to the nearest hundreth, thousandth, or whole number. Make sure to check that before you enter any of these!!

Answer:

Explanation:

The sketch of the curve for two Br atoms can be seen in the image attached below. From the image below, we can deduce the following:

On the periodic table, the Bromine (Br) atom is the fourth member in the halogen family group. The atomic size increases from top to bottom down the group, thus Br atom posses a larger atomic size than Cl atom. As a result of that, the bond length formation between the two Br atoms will be larger compared to that of the two Cl atoms.

this reaction, which has a kp of 76.7 under certain conditions. co(g) h2o(g) co2(g) h2(g) if the initial pressure of co is 0.415 atm and the initial pressure of h2o is 0.415 atm, is \(7.34 \text { atm. }\)

What is pressure?

The force delivered perpendicularly to an object's surface per unit area across which that force is dispersed is known as pressure. In comparison to the surrounding pressure, gauge pressure is the pressure. Pressure is expressed using a variety of units.

Let \($\mathrm{x}$\) atm be the equilibrium partial pressure of water vapor.

The equilibrium partial pressure of \($\mathrm{CO}$\) will also be \($\mathrm{x}$\) atm.

The equilibrium partial pressures of \($\mathrm{H}_2$\) and \($\mathrm{CO}_2$\) will be\(10-\mathrm{x} \text\) { atm and } \(20-\mathrm{x}\) atm and \($20-\mathrm{x}\)  atm respectively.

\(\text { The equilibrium constant expression is } \mathrm{K}_{\mathrm{p}}\)\(=\frac{\mathrm{P}_{\mathrm{H}_2 \mathrm{O}} \mathrm{P}_{\mathrm{CO}}}{\mathrm{P}_{\mathrm{H}_2} \mathrm{P}_{\mathrm{CO}}}\)

\(\begin{aligned}& 1.60=\frac{\mathrm{x} \times \mathrm{x}}{(10-\mathrm{x}) \times(20-\mathrm{x})} \\& 0.625 \mathrm{x}^2=200-10 \mathrm{x}-20 \mathrm{x}+\mathrm{x}^2 \\& 0.375 \mathrm{x}^2-30 \mathrm{x}+200=0 \\& \mathrm{x}=72.7 \text { or } \mathrm{x}=7.34\end{aligned}\)

The value \($72.7$\) is discarded as the equilibrium partial pressure of hydrogen cannot be negative.

\($$[10-x=10-72.7 < 0]$$\)

\(\text { Hence, the partial pressure of water vapour at equilibrium is } 7.34 \mathrm{~atm} \text {. }\)

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The external expression of a mineral’s orderly internal arrangement of atoms is referred to as its crystal form

Internally, a mineral's crystal structure, or regular, repeating arrangement of atoms, reflects the chemical makeup of the mineral. A CHEMICAL FORMULA, which only lists the proportions of the various elements and groups of elements in the mineral, can be used to describe the composition of a mineral. For minerals with a narrow range of composition, the latter idea—groups of elements—comes into play. Color, hardness, luster, crystal formations, density, and cleavage are characteristics that aid geologists in determining a mineral's identity in a rock. The atomic structure of a crystal essentially determines its form, cleavage, and hardness. Chemical composition is the main determinant of color and density.

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The mole fraction of oxygen gas in air from table 5.3 of the textbook is 0.2095.

In the textbook table 5.3, the mole fraction of oxygen gas in air is 0.2095. The mole fraction refers to the number of moles of a substance in a given solution divided by the total number of moles of all components present in the solution. For air, the other components include nitrogen, carbon dioxide, and other trace gases.

In conclusion, the mole fraction of oxygen gas in air from table 5.3 of the textbook is 0.2095.

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A tightly sealed jar will form liquid and water equilibrium but the drinking glass will not.

The liquid and water vapor establish equilibrium in a tightly sealed container but not in the drinking glass because in the tightly sealed jar, the water can't go into the atmosphere but in the drinking glass the water will evaporate.

So we can conclude that a tightly sealed jar will form liquid and water equilibrium but the drinking glass will not.

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The standard enthalpy of reaction for a system in which increasing the temperature by 15 K reduces the equilibrium constant by half, relative to its value at 310 K is -0.956 kJ/mol.

Given: ΔT = 15 K and ∆K/K = 1/2

Temperature is directly proportional to equilibrium constant K,

So, ∆T/T = ∆K/K

This can be written as ∆K/K = ΔH°/R × (1/T2 − 1/T1)

On solving this equation, we getΔH° = −2.303 × R × ΔK/K × T2T2 = 310 + 15 = 325 K∆K/K = 1/2∆H° = −2.303 × 8.314 J mol−1 K−1 × 1/2 × 325 K∆H° = −955.7 J mol−1= −0.956 kJ/mol

Therefore, the standard enthalpy of reaction for a system in which increasing the temperature by 15 K reduces the equilibrium constant by half, relative to its value at 310 K is -0.956 kJ/mol.

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The correct statement about the buddy system for allocating memory is:

C. With the buddy system, memory segments can be either divided or coalesced to satisfy an allocation request.

The buddy system is a memory allocation technique used in operating systems. It divides memory into fixed-size blocks or segments, typically in powers of two. When a memory allocation request is made, the system looks for a free block of suitable size. If the block is larger than required, it can be divided or split into smaller blocks to satisfy the request. Conversely, if adjacent blocks are free, they can be coalesced or merged to form a larger block for allocation.

A. The buddy system is not specifically designed for quickly allocating pages on demand for user-space applications. It is a general memory allocation strategy used in various contexts.

B. The buddy system may still result in internal fragmentation. Internal fragmentation occurs when allocated memory blocks are slightly larger than the requested size, leaving unused space within the block.

D. The buddy system does not guarantee physically contiguous memory allocation. It can allocate memory from different available blocks, which may or may not be physically contiguous.

Therefore, the only true statement is C. With the buddy system, memory segments can be either divided or coalesced to satisfy an allocation request.

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Answer:

I HOPE IT HELPED THANKS