what alcohols are obtained from the reduction of the following compounds with sodium borohydride?

Answer:

Explanation:

Decomposition reaction, also known as analysis or dissociation, is a type of chemical reaction in which a compound breaks down into simpler substances or elements. In this reaction, a single reactant undergoes a chemical change and produces two or more products.

The decomposition reaction can be represented by the general equation:

AB → A + B

Where AB is the reactant, and A and B are the products. The reactant AB is usually a compound, and it breaks down into its constituent elements or simpler compounds.

There are different types of decomposition reactions, including:

Thermal decomposition: It occurs when a compound is heated, resulting in its decomposition into simpler substances. For example, the thermal decomposition of calcium carbonate (CaCO3) produces calcium oxide (CaO) and carbon dioxide (CO2):

CaCO3 → CaO + CO2

Electrolytic decomposition: It takes place when an electric current is passed through an electrolyte, causing it to break down into its component ions. For instance, the electrolysis of water (H2O) leads to the decomposition into hydrogen gas (H2) and oxygen gas (O2):

2H2O → 2H2 + O2

Photochemical decomposition: It occurs when a compound undergoes decomposition due to exposure to light energy. Chlorine gas (Cl2) can decompose into chlorine atoms (Cl) under the influence of light:

Cl2 → 2Cl

These are just a few examples of decomposition reactions. They are important in various chemical processes and are used in industries, laboratory experiments, and natural phenomena. By understanding and controlling decomposition reactions, scientists can gain insights into the behavior of different compounds and develop practical applications in fields such as chemistry, materials science, and environmental science.

Answer:

Explanation:

reaction in which a compound breaks down into simpler substances or elements

2 C 4 H 10 ( g ) +  13 O 2 ( g )  =  8 C O 2 ( g ) +  10 H 2 O ( g )

Answer:

ecosystem

Explanation:

An ecosystem includes all of the living things (plants, animals and organisms) in a given area, interacting with each other, and also with their non-living environments (weather, earth, sun, soil, climate, atmosphere). The living and nonliving components of the ecosystem are linked together through nutrient cycles and energy flows. Ecosystems are of any size, but usually they are in particular places.

In an ecosystem, plants depend on the soil for nutrients. These nutrients are cycled in nature by the various biogeochemical cycles within the ecosystem. The ecosystem is a self sustaining unit in terms of materials and energy flow.

Answer:

D. ecosystem

Explanation:

An ecosystem is a large community of living organisms (plants, animals and microbes) in a particular area. The living and physical components are linked together through nutrient cycles and energy flows.

In an ecosystem there is symbiotic relationship which entails each living organism contributes to the well being of the other and the entire population.

Circle b represents the solution after 300 mL of solvent has been added.

Volume percent = {Volume of solute / volume of solution} x 100

After adding the solution, the volume of solution increases but volume of solute remains the same. For same volume of solute, the volume percent is high for once which has the volume of solution is low.

In 100 mL the visually represented solution has 12 balls for solute. When 300 mL of solution is added to the solute, the total volume is 400 mL volume is increased 4 times. Then 12/4 = 3 is the number of solute present in the circle. Circle b represents the solution.

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Answer:

1) The volume occupied by an atom is composed of mainly empty space

2) Atoms have a very small, relatively dense, central nucleus that is positively charged

3) The region around the nucleus of an atom are orbited by negatively charged electrons in a the same fashion planets orbit around the Sun.

Explanation:

The selection of gold for the gold foil experiment was due to its ability to be rolled into extremely thin sheets such that it was expected for alpha particle to perforate or pass through the foil.

Answer:

Explanation:

Elements

Answer: b

Explanation: cheese

Answer:

Answer: About 71 percent of the earth's surface is covered by water.

--Submitted by Robert Gagosian, Woods Hole Oceanographic Institute

Answer:

9

Explanation:

The solubility of silver chloride (AgCl) in a solution that is initially 0.120 M in NH3 (ammonia) is approximately X mol/L.

To calculate the solubility of AgCl in the presence of NH3, we consider the formation of the complex ion [Ag(NH3)2]+. Using the equilibrium expression for the complex ion formation and the solubility product constant (Ksp) for AgCl, we determine that the concentration of Ag+ is equal to the solubility of AgCl. By considering the equilibrium constant (Kf) for the formation of the complex ion and the initial concentration of NH3, we can calculate the concentration of [Ag(NH3)2]+. Finally, knowing that [AgCl] is equal to [Ag+], we can conclude that the solubility of AgCl in the NH3 solution is approximately equal to the concentration of Ag+.

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Answer:

9.00 g H2O

Explanation:

Convert molecules to grams using stoichiometry

(3.01 * 10^23 molecules) * (1 mole H2O / 6.022 * 10^23 molecules) * (18.01 g / 1 mole H2O) = 9.00 g H2O

Answer:

answer  in picture

Explanation:

Answer: The number of moles of gas which are present in the sample are 1.49 mol.

Explanation:

Given: Volume = 55.3 L

Temperature = \(23.3^{o}C\) = (23.3 + 273) K = 296.3 K

Pressure = 0.658 atm

Formula used is as follows.

PV = nRT

where,

P = pressure

V = volume

n = no. of moles

R = gas constant = 0.0821 L atm/mol K

T = temperature

Substitute the values into above formula as follows.

\(PV = nRT\\0.658 atm \times 55.3 L = n \times 0.0821 L atm/mol K \times 296.3 K\\n = \frac{0.658 atm \times 55.3 L}{0.0821 L atm/mol K \times 296.3 K}\\= \frac{36.3874}{24.32623}\\= 1.49 mol\)

Thus, we can conclude that the number of moles of gas which are present in the sample are 1.49 mol.

Answer:

What 3 factors influence the amount of thermal energy in an object, and how do they each affect it? Mass, temperature, and phase. More mass, more Thermal Energy. Higher temperature, more Thermal Energy.

ASAP=abbreviation. As soon as possible. 'fill in your form and send it to us ASAP' More example sentences.

Answer:

I`m pretty sure it`s electrical tape.

Explanation:

The objects which does not conduct electricity are called insulators which are not needed to test electrical conductivity. Hence, insulated wire is the correct option.

Conductivity of a substance is the ability to conduct electrically or thermally through the substance. Based on their conductivity, there are three classes of materials conductors, semiconductors and insulators.

Conductors are materials conducting heat and electricity at all temperatures. Semiconductors conduct only at higher temperature or on doping. Insulators are material does not conduct at any condition.

Metals are good conductors. Silicon , germanium etc. are semiconductors. Whereas, wood, plastic etc. are insulators they does not allow flow of electrons through it. Therefore, an insulated wire is not needed to test conductivity.

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Answer:

The first thing that you need to do here is to figure out the mass of the sample.

To do that, you can use its volume and the fact that aluminium is said to have a density of

2.702 g cm

−

3

, which implies that every

1 cm

3

of aluminium has a mass of

2.702 g

.

Explanation:

The identity of the gas sample that weighs 4.84g and occupies a volume of 0.918L at 35 °C and 850torr is CHCl₃ with molar mass of 119.4g/mol (option A).

The number of moles of an ideal gas can be calculated using the ideal gas law equation as follows:

PV = nRT

Where;

According to this question, a sample of gas weighs 4.84g and occupies a volume of 0.918L at 35 °c and 850 torr. The number of moles can be calculated as follows:

1.12 × 0.918 = n × 0.0821 × 308

1.028 = 25.286n

n = 0.041moles

molar mass of gas = 4.84g ÷ 0.041moles

molar mass = 119.4g/mol

Therefore, the identity of the gas is CHCl₃.

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Answer:

the dipoles in the linear CO2 molecule cancel each other out, meaning that the CO2 molecule is non-polar.

Answer:

Explanation:

Here, we want to select an option that represents a chemical property of carbon

Let us take a look at the options;

a) This is a physical property that talks about the color of the gas at a certain temperature

b) This is a physical property that talks about the smell of the gas at a certain temperature

c) This is a physical property that talks about the weight in comparison to the same weight of air at that particular temperature

d) This is a chemical reaction as an entirely new substance will be formed

Answer:

How can you tell that one of the results has been recorded to a

Answer: D 25 degrees

Explanation: The reason because is 25x4=100 and slightly tilted =1/4 of the earth which is 25

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The critical point determines liquid or gas. The liquid region is denoted "L." Condensation occurs when crossing the vaporization curve.

The point that marks the highest temperature and pressure at which it is possible to determine whether a sample of pure substance "X" is a liquid or a gas is called the critical point.

At the critical point, the liquid and gas phases of a substance become indistinguishable, and there is no clear distinction between the two phases. The critical point is denoted by the letter "C" on a phase diagram.

To determine the region where a sample of pure substance "X" would be a liquid, we need to look at the phase diagram.

A phase diagram is a graph that represents the relationship between temperature, pressure, and the different phases of a substance. The region where the sample would be a liquid is typically denoted by the letter "L" on the phase diagram.

If a gaseous sample of substance "X" is observed to condense, it means that it is transitioning from the gas phase to the liquid phase. This transition occurs when the temperature and pressure cross the line separating the gas and liquid phases on the phase diagram.

This line is known as the vaporization curve or the saturation curve. Therefore, the temperature and pressure must cross this line in order for a gaseous sample of substance "X" to condense.

In summary, the critical point marks the highest temperature and pressure where it is possible to determine the phase of a substance.

The liquid phase region is denoted by "L" on the phase diagram, and a gaseous sample of substance "X" will condense when the temperature and pressure cross the vaporization curve.

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The arrangement of the gases in terms of  deviations from ideal behavior is; chlorine > fluorine > oxygen > Nitrogen.

We know that gases tend to follow the idea gas law. The gases that have ideal behavior tend to show this behavior at high temperatures and low pressure such that the interactions between the gas molecules could be regarded as non existent.

Now; we know that the greater the molar mass of the gas, the greater the gas tends to depart from ideal behavior. As such we would tend to arrange the gases in order of decreasing molar mass.

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The pressure of the gas in the bulb, given that height in the right arm is 100 mm and the left arm is 120 mm, is 740 mmHg (Option C)

From the question given above, the following data were obtained:

The pressure of the gas in the bulb can be obtained as shown below:

Pressure of gas = Atmospheric presure - Pressure due to difference in height

Pressure of gas = 760 - 20

Pressure of gas = 740 mmHg

Thus, we can conclude from the calculation made above that the pressure of the gas is 740 mmHg (Option C)

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Table MM.1: Bond Angles

Compound C-C-C Angle (straight chain or cyclic)

Propane 109.5 degrees

Butane 109.5 degrees

Pentane 109.5 degrees

Cyclopropane 60 degrees

Cyclobutane 90 degrees

Cyclopentane 108 degrees

The bond angles in organic compounds are primarily determined by the hybridization of the central atom and the number of electron pairs around it. In straight chain alkanes such as propane, butane, and pentane, the carbon atoms are sp³ hybridized and have tetrahedral geometry with bond angles of approximately 109.5°.

In cyclic compounds such as cyclopropane, cyclobutane, and cyclopentane, the bond angles are different from those in straight chain alkanes due to ring strain caused by the bond angles deviating from the ideal tetrahedral angle.

In cyclopropane, the bond angles are approximately 60°, while in cyclobutane they are approximately 90°, and in cyclopentane they are approximately 108°.

Overall, the bond angles in organic compounds are important in determining the overall shape and properties of the molecule.

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Answer: When the forces are balanced, neither of the teams, but if the rope moves away in a particular direction or if a team wins, then the forces applied by both teams are unbalanced. Practically anything that moves is a result of the exertion of unbalanced forces on it.

Explanation:

The balanced or unbalanced forces are related to rotational motion by the occurrence of the constant and altered changes in the speed of the object.

Rotational motion may be defined as a type of motion that involves the movement of an object along an axis in a circular path with a common angular velocity.

Balanced forces maintain the state of an object at a constant speed. It means that its velocity remains unchanged during the course of the time interval. While unbalanced forces stimulate the alteration in the velocity of an object. It either reduces or enhances the initial speed of an object.

Therefore, the balanced or unbalanced forces are related to rotational motion by the occurrence of the constant and altered changes in the speed of the object.

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Given :

Number of molecules of \(C_4H_2F_7I\).

To Find :

How many moles are in given number of molecules.

Solution :

We know, in 1 moles of any element/compound contains \(6.022\times 10^{23}\) at atoms/molecules.

So, number of moles in \(5.4\times 10^{24}\) molecules are :

\(n = \dfrac{5.4\times 10^{24}}{6.022\times 10^{23}}\\\\n = 8.97 \ moles\)

Therefore, number of moles are 8.97 .