What is the major organic product obtained from the following reaction? os04 nahso4

Answer:

Zn+2

Explanation:

I'm sorry if its wrong but have a good one!

Answer:

what is it asking???? I'm confused on what it wants you to do

An experiment consists of making 80 telephone calls in order to sell a particular insurance policy. The random variable in this experiment is a discrete random variable. Therefore, the correct option is A.

The random variable in this experiment is a discrete random variable. A discrete random variable is a variable that can only take on specific values and not a range of values. In this case, the variable represents the number of insurance policies sold out of 80 telephone calls. The variable can only take on whole numbers from 0 to 80, making it a discrete random variable.

The other options mentioned (continuous, complex, simplex, robo-calling, spam, and telemarketing random variables) are not applicable in this scenario as they do not accurately describe the nature of the variable being studied. Hence, the correct answer is option A.

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The answer response are:

Lead is a metal that is commonly used in various applications, including protecting against radiation in dental x-rays and as a component in car batteries. The carbon family, located in Group 14 of the periodic table, includes elements such as carbon, silicon, and germanium. These elements have similar chemical properties and physical characteristics such as having four valence electrons, being non-metallic, etc.

Therefore, Some common uses of the carbon family include the production of semiconductors, alloys, and ceramics. Silicon, for example, is used in the production of computer chips and solar panels, while carbon is used in the production of graphite and diamond. Understanding the properties and applications of these elements can have important implications for various fields such as engineering, materials science, and environmental health.

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Answer:

The average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by its natural abundance.

A nitrogen atom in N2O3 has an oxidation number of +3.

The unknown nitrogen oxidation number can be given a variable (x) to ascertain its oxidation number. Since oxygen has an oxidation number of - 2 and there are three oxygen particles in N₂O₃, the complete negative charge from oxygen is (- 2) × 3 = - 6.

The total charge of a compound is equal to the sum of its oxidation numbers. Since the compound in question is neutral, the sum of the oxidation numbers must be zero in this instance.

2(N) + 3(O) = 0

2x + (-6) = 0

2x = 6

x = 3

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The solubility of the substances from MOST soluble in water to LEAST soluble in water is OHCH₂CH₂OH > CH₃CH₂CH₂OH > CH₃CH₂CH₂CH₃

The correct order is B > A > C

The solubility of a substance is the amount in moles of a substance that can dissolve in a given volume of solvent at that temperature.

The solubility of a substance depends on the nature of the solvent and solute. For example, polar substances dissolve very well in polar solvents but sparingly in non-polar solvents.

Alkanols are soluble in water because of the -OH group. The solubility of alkanols decreases with an increase in the molecular weight of the alkanol.

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Answer:

c

Explanation:

In the modern periodic table, periods with heavier elements are longer than periods with lighter elements. This difference in period length exists because there are many more heavy elements than light elements.

The periodic table is arrangement of elements in groups and periods. Elements in the same group of the periodic table have the same number of valence electrons while elements in the same period have the same number of shells.

Period 1 contains the lightest elements, hydrogen and helium. However, in the periodic table, we notice that periods with heavier elements are longer than periods with lighter elements. This is because there are many more heavy elements than light elements.

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Answer:

=0.15M

Explanation:

To get the moles of the unknown LiOH, calculate the number of moles of HCl in 12.3mL.

Using the stoichiometric coefficient, mole ratio 1:1.

This means that the number of moles is the same. This number of moles is contained in 18mL. Then Calculate the molarity (concentration) which is in 1000mL

See the explanation from the image I have shared with you for calculations.

Approximately 176.3 grams of tin (II) fluoride (SnF2) are produced when 45.0 grams of HF react.

The balanced chemical equation for the reaction between hydrofluoric acid (HF) and tin (II) fluoride (SnF2) is:

2 HF + SnF2 → SnF4 + 2 HCl

This equation tells us that for every 2 moles of HF that react with SnF2, we will get 1 mole of SnF4 produced.

To determine how many grams of SnF2 are produced from 45.0 grams of HF, we need to first convert the mass of HF to moles using its molar mass. The molar mass of HF is approximately 20.01 g/mol:

45.0 g HF × (1 mol HF / 20.01 g HF) = 2.25 mol HF

According to the balanced equation, 2 moles of HF react with 1 mole of SnF2. Therefore, we can determine the moles of SnF2 produced by dividing the moles of HF by 2:

2.25 mol HF ÷ 2 = 1.125 mol SnF2

Finally, we can convert the moles of SnF2 to grams using its molar mass, which is approximately 156.70 g/mol:

1.125 mol SnF2 × (156.70 g SnF2 / 1 mol SnF2) ≈ 176.3 g SnF2

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Answer:

1.8066 x \(10^{24}\) people

Explanation:

One mole of any substance has 6.022 x \(10^{23}\) number of particles in it.

Using the ratio method:

   moles     :    people

        1          :   6.022 x \(10^{23}\)

         3        :     X

X = (3 x 6.022 x \(10^{23}\))

X = 1.8066 x \(10^{24}\) people

The correct answer is c. Limestone. This is because limestone is a porous rock that can easily allow groundwater to flow through it, allowing contamination to travel farther distances compared to other subsurface formations like clay, granite, and gravel.

Additionally, the chemical composition of limestone can also make it more susceptible to certain types of contamination, such as from acidic or alkaline substances.
 The general type of subsurface formation in which groundwater contamination is likely to travel the farthest is:
d. Gravel

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The helix has a characteristic rise of 5.4 angstroms per turn and an average of 3.6 residues per turn. It can be either right or left-handed, depending on the direction of the helical turn. So, The correct answer is option: d.

However, it is not true that the alpha helix can accommodate only glycine and alanine residues in the center core of the helix. Other residues can also be found in the core, depending on their size and chemical properties. Therefore, the correct answer is (d) can accommodate only glycine and alanine residues in the center core of the helix.

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The turning black of powders on reaction with iodine is  a chemical property as the powders are undergoing  chemical change.

Chemical changes are defined as changes which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical change.

There are several characteristics of chemical changes like change in color, change in state , change in odor and change in composition . During chemical change there is also formation of precipitate an insoluble mass of substance or even evolution of gases.

There are three types of chemical changes:

1) inorganic changes

2)organic changes

3) biochemical changes

During chemical changes atoms are rearranged and changes are accompanied by an energy change as new substances are formed.

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Answer:

D

Explanation:

Valency is the combining power of an element

The current involved is 44.7 A

In an electrolytic reaction, we have the situation in which one specie is oxidized and the other specie is reduced in the electrochemical reaction. We have the reaction that occurs as;

2Cl^-(aq) ------> Cl2(g) + 2e

Now;

If 2 * 96500 C liberates 22.4 dm^3 of Cl2

x C liberates 20dm³ of chlorine gas at STP

x =  2 * 96500 C *  20dm³/24 dm³

x = 160833.33 C

Now

Q = It

Q = quantity of electricity

I = current

t = time = 1 hour or 3600 s

I = Q/t =  160833.33 C/ 3600 s

I = 44.7 A

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The solubility of carbon dioxide (CO2) in water depends on several factors, including temperature and pressure. Generally, as pressure increases, the solubility of CO2 in water also increases.

To determine the specific pressure at which CO2 gas would be more soluble in 100g of water, we would need additional information. The solubility of CO2 in water is typically expressed in terms of partial pressure, given in units such as atmospheres (atm) or kilopascals (kPa). Additionally, the temperature of the water is a crucial factor in determining solubility.

If you provide the temperature and the solubility data for CO2 in water at that temperature, I can help you calculate the pressure at which CO2 gas would be more soluble in 100g of water.

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Answer:

Explanation:

Answer:

B. all organisms are made of at least one cell.

C.cells are the building blocks of life.

D.all cells come from preexisting cells

Explanation:

According to the cell theory that was proposed via the contribution of three scientists in 1830's namely: Matthias Schleiden, Theodor Schwann, and Rudolf Virchow, the following was stated:

- Cells are the basic and fundamental unit of life

- Living organisms are made up of one or more cells

- All cells arise from pre-existing cells.

From the above components, the following are said to be true and correlate with the universal cell theory:

B. all organisms are made of at least one cell.

C.cells are the building blocks of life.

D.all cells come from preexisting cells

Answer:

The answer is "\(1.4 \ \bold{ billion-years}\)".

Explanation:

Using formula:

\(\to N_{Now} = N_{orige}e^{\lambda t} \\\\\)

\(\to\) 1 U atom produces 1 Pb atom after decay.

\(\to\) U's original numbers are now the sum of U counts and Pb counts.

 \(\to N_U=(N_U+N_{pb})e^{\lambda Ut}\)

\(\to 1 = (1+3) \ exp[(\frac{-\ln(2)}{t_{(half)}} \times t ]\\\\\to t = [\frac{\ln(4)}{\ln(2)}] \times t_{(half)}\)

      \(= 14 \times 10^8 \ \ years\\\\=1.4 \ billion \ \ years\)

The most likely option to be a gas at room temperature is B2H6 (diborane) because it has a low boiling point and is highly volatile. The other options are either liquids or solids at room temperature. CH3OH (methanol) is a liquid, C8H18 (octane) is a liquid, K2O (potassium oxide) is a solid, and MgF2 (magnesium fluoride) is a solid.

Diborane, also known as B2H6, is a chemical compound composed of boron and hydrogen atoms. It is a colorless and highly reactive gas. Diborane is a notable compound due to its unique structure and properties.In terms of solubility, diborane is sparingly soluble in water. It reacts with water to form boric acid (H3BO3) and hydrogen gas (H2). The reaction is exothermic and can be potentially hazardous.However, diborane is more soluble in organic solvents such as ether, benzene, and toluene. It readily dissolves in these nonpolar solvents due to its nonpolar nature.

It's worth mentioning that diborane is highly reactive and pyrophoric, meaning it can spontaneously ignite in the presence of air or moisture. Therefore, when handling diborane or working with its solutions, it is essential to take proper precautions and follow appropriate safety protocols.

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The answer of the mathematical operation to the correct number of significant figures is 1.71x10⁻⁴

The answer of the mathematical operation to the correct number of significant figures is 7.2

The no of significant figures in the answer depends on the no of significant figures in the problem given.

It is given 1.05x10⁻³/6.135 , so the number of significant figures in 1.05x10⁻³ is 3 and in 6.135 is 4. So the answer of this operation will be rounded off to have 3 significant figures only. Since the calculated amount comes out as 0.17114x10⁻³. But it has to be rounded to 4 significant figures. So the answer will be 1.71x10⁻⁴

It is given 21-13.8 , so the number of significant figures in the operation are 2 and 3 respectively. So the calculated amount comes to be 7.2 and it already has 2 significant figures.

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4g of water will contain 4.014 x \(10^{23\) atoms of water..

One molecule of water contains 3 atoms (2 hydrogen atoms and 1 oxygen atom).

To calculate the number of water molecules in 4 grams of water, we need to first determine the number of moles of water in 4 grams.

The molar mass of water (H2O) is approximately 18.015 grams/mol.

So, 4 grams of water is equal to:

4 g / 18.015 g/mol = 0.222 mol

Next, we can use Avogadro's number, which is approximately 6.022 x 10^23 molecules/mol, to calculate the number of water molecules:

0.222 mol x 6.022 x 10^23 molecules/mol = 1.338 x 10^23 molecules

Since each water molecule contains 3 atoms, the total number of atoms in 4 grams of water is:

1.338 x 10^23 molecules x 3 atoms/molecule = 4.014 x 10^23 atoms

Therefore, 4 grams of water contains approximately 4.014 x 10^23 atoms of water.

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Answer:

4.70 grams of NH4Cl is needed to prepare 350 mL of a 0.25 M ammonium chloride solution.

We need approximately 4.68 grams of NH4Cl to prepare a 0.25 M ammonium chloride solution with a volume of 350 mL.

To determine the mass of NH4Cl needed to prepare the solution, we us use the formula:

m=M x V x MM ... (i)

where,

m= mass in grams

M=molarity of solution

MM= molar mass of compound

V= volume in litres

The number of moles of NH4Cl needed can be calculated using:

  Moles = Molarity x Volume ...(ii)

  Moles = 0.25 mol/L x 0.350 L

  Moles = 0.0875 mol

Hence we can replace M x V with number of moles in equation i.

The molar mass of NH4Cl is :

  Molar mass of NH4Cl = (1 x 14.01 g/mol) + (4 x 1.01 g/mol) + (1 x 35.45 g/mol)

  Molar mass of NH4Cl = 53.49 g/mol

We have all the variables

Putting them in equation i.

Hence,

  Mass (g) = Moles x Molar mass

  Mass (g) = 0.0875 mol x 53.49 g/mol

  Mass (g) = 4.68 g

Therefore, you would need approximately 4.68 grams of NH4Cl to prepare a 0.25 M ammonium chloride solution with a volume of 350 mL.

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When the concentration of a substance varies from one region to another, the substance is exhibiting a gradient.

A gradient refers to the difference in concentration of a substance between two regions or areas. The concentration gradient occurs when there is an area of high concentration of a substance adjacent to an area of low concentration of the same substance.

For example, a concentration gradient can be seen in the air, where the concentration of oxygen is higher in the air outside of a building than inside a building. This gradient of oxygen concentration causes the air to move from high concentration to low concentration, which is the process of diffusion.

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Answer:The process of photosynthesis in plants converts carbon dioxide and water into glucose and oxygen. The balanced equation for this reaction is:

6 CO2 + 6 H2O --> C6H12O6 + 6 O2

This equation tells us that for every 6 molecules of carbon dioxide (CO2) that are consumed, 1 molecule of glucose (C6H12O6) is produced, along with 6 molecules of oxygen (O2).

Given that we have 760.0 grams of carbon dioxide and a sufficient amount of water, we can use the balanced equation and the molar mass of glucose to calculate the amount of glucose that will be produced.

First, we need to convert the given amount of carbon dioxide to moles. We can do this by using the molar mass of carbon dioxide, which is 44.01 g/mol.

760.0 g CO2 / 44.01 g/mol = 17.3 moles CO2

Next, we can use the balanced equation to determine the number of moles of glucose that will be produced. Since the ratio of CO2 to glucose is 6:1, for every 6 moles of CO2, 1 mole of glucose will be produced.

17.3 moles CO2 / 6 = 2.88 moles glucose

Finally, we can convert the number of moles of glucose to grams using the molar mass of glucose, which is 180.16 g/mol

2.88 moles glucose * 180.16 g/mol = 517.3 grams glucose

Therefore, plants will produce 517.3 grams of glucose using 760.0 grams of carbon dioxide and a sufficient amount of water.

Explanation: