Some gases are soluble enough in water to dissolve to produce an acidic solution, although in some cases only slightly so. Identify which gas can dissolve in water to produce H2SO3(aq)?

The main precautions to take if a gas cylinder sign is present in the lab visually check that the gas cylinder is restrained, but keep a safe distance from it. The correct option is c.

Precautions are the preventive steps that are taken to save yourself from any dangerous circumstances. These steps are always taken in doing experiments and other scientific procedures.

Here, the precautions are to check the gas cylinder.

Thus, the correct option is c, Visually check that the gas cylinder is restrained, but keep a safe distance from it.

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The question is incomplete. Your most probably complete question is given below:

Remove the strap from around the gas cylinder to use it in the lab.

Open the valve on the gas cylinder periodically to release pressure.

Visually check that the gas cylinder is restrained, but keep a safe distance from it.

Test out the regulator on the gas cylinder to make sure it is working properly.

Answer: Based on Rock Formation, the student's judgment that Rock 2 is more likely to contain a fossil than Rock 1 is appropriate.

Explanation:

Rocks are classified into three types:

Igneous rocks, metamorphic rocks, and sedimentary rocks.

Rock 1 is an Igneous Rock.

When a fiery, molten rock crystallizes and hardens, it forms igneous rocks (from the Latin root word fire).

Rock 2 is a Sedimentary Rock

At standard surface temperatures, sedimentary rock is developed at or near the Earth's surface by the build-up and lithification of sediment (detrital rock) or by precipitation from suspension (chemical rock).

Under low temperatures and pressure, rock deposits produce sedimentary rocks in the ocean and on the Earth's crust. Plants and animals die and are deposited in a sedimentary deposit.

The following are the reasons why sedimentary rocks are the only rock types that hold fossils:

The burial of deceased plants and animals by additional sediment results in the build-up of minerals from water in bones, which leads to the development of fossils.

As a result, sedimentary rocks are the only rock types that retain fossils.

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1. Unit of pressure called a derived unit because it is a combination of base units (kg·m^-1·s^·2).

2. We measure the volume of milk by a instrument called Milk Lactometer.

Put on safety goggles and protective gloves.

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1. The equation is 2KCl + F2 → 2KF + Cl2

2. The moles is 0.4 moles

3. The mole ratio is 2:1

4. 0.2 moles of chlorine is produced

5. The volume of the chlorine gas is 4.48 L

We have that the reaction equation is;

The balanced reaction equation is;

2KCl + F2 → 2KF + Cl2

The moles of the KCl = 30 g/75 g/mol

= 0.4 moles

If 2 moles of KCl produced 1 mole of chlorine

0.4 moles of KCl will produce 0.4 * 1/2

= 0.2 moles

If 1 mole occupies 22.4 L

0.2 moles occupies 0.2 * 22.4/1

= 4.48 L

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The best reagents to convert 1-hexyne into (e)-1,2-dibromo-1-hexene are 1 equiv. Br2 in CCl4, followed by NaOH to convert the mixture of (Z)- and (E)-isomers to the desired (E)-isomer.

This reaction is called the Vicinal Dibromination reaction. Option A: xs Br2 in CCl4 is a good choice of reagents, but it will give a mixture of (Z)- and (E)-isomers. Option B: 1 equiv. HBr will result in the formation of (Z)-1-bromo-1-hexene. Option C: ROOR is a radical initiator and will not result in the desired product.

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Answer:

2.8 moles

Explanation:

The formula for water is H2O, so one mole of water contains two moles of hydrogen and one mole of oxygen.

Here, the ratio of water particles to oxygen particles is one to one.

Therefore, in 2.8 moles of water, there are 2.8 moles of oxygen.

Hence, 2.8 moles of oxygen are required to produce 2.8 moles of water.

49 becase you multilpy it

Explanation:

Answer:

Its the thin lining around the cell the moniters what gets in and out of the cell.

Explanation:

Answer:

Explanation:

what are the statments i can't help till i have the posable answers

Answer:

1- Natural sources are renewable with time

2- To refrain from over usage of products on unnecessary things

3- An example of poor soil management is using the soil with the most minerals to put houses on instead of farming with

Answer:

B.) If sodium carbonate is added to vinegar, the reaction will absorb heat.

Explanation:

A.) is incorrect because this is not testable. Rather, it is just an opinion that cannot be proven correct or incorrect.

B.) is correct because this statement is testable. Tests need to be run to determine the accuracy of the statement.

C.) is incorrect because this statement explains something that does not need to be tested. It is an example of a physical change when one tears a piece of paper.

D.) is incorrect because this is already a true statement. It is obvious that not all reactions absorb/release heat. While tests could be run to further prove this statement true, it is already considered accurate.

The type of compound that can be made in one step from a secondary alcohol is a ketone. This is because the process of oxidizing a secondary alcohol results in the formation of a ketone.

Oxidation is a chemical reaction that involves the loss of electrons, and in the case of secondary alcohols, the loss of two electrons from the hydroxyl group (OH) results in the formation of a carbonyl group (C=O) that characterizes ketones.The reaction can be carried out by using various oxidizing agents such as chromic acid, potassium permanganate, or sodium dichromate. The choice of the oxidizing agent depends on the specific secondary alcohol being used and the desired end product. However, it is important to note that the reaction conditions need to be carefully controlled to avoid over-oxidation, which can lead to the formation of a carboxylic acid.In conclusion, a ketone can be made in one step from a secondary alcohol through oxidation. This process is commonly used in organic synthesis to create various compounds that have different applications in industries such as pharmaceuticals, perfumes, and flavors.Hi! The compound that can be made in one step from a secondary alcohol is D. a ketone. When a secondary alcohol undergoes oxidation, it is converted into a ketone.

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Answer:

Explanation:

If the particle has a velocity of 4 m/s initially (at t=0) and has a constant acceleration of 2 m/s2, find the velocity of the particle: when t=1; when t=2; after t seconds.

The average acceleration of the car starting with a starting velocity of 0 meters/second and accelerating up to 9 meters/second in 3 seconds would be 3 meters/second².

There are three equations of motion given by  Newton

The first equation is given as follows

v = u + at

the second equation is given as follows

S = ut + 1/2×a×t²

the third equation is given as follows

v² - u² = 2×a×s

As given in the problem we have to find the average acceleration of the car starting with a starting velocity of 0 meters/second and accelerating up to 9 meters/second in 3 seconds,

By using the first equation of motion

v = u + at

By substituting the value of velocities and time period in the first equation of motion,

9 = 0 + 3a

3a = 9

a = 9/3

a = 3 meters/second²

Thus, the acceleration of the car would be 3 meters/second².

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The net ionic equation for potassium fluoride and ammonium chloride is

NH_4^++F^-(aq)--->NH_3(aq)+HF(aq)

Generally, The net ionic equation can simply be defined as a chemical equation that records solely those species experiencing the reaction.

Therefore,  net ionic equation for potassium fluoride and ammonium chloride

NH_4Cl(aq) and KF(aq) are both salys

Therefore, the ionic equation excludes them and is

NH_4^++F^-(aq)--->NH_3(aq)+HF(aq)

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Answer:

1: As the temperature rises, the equilibrium moves towards the products

2: The higher the pressure, the higher the equilibrium goes to the reactants

3: By removing chlorine, the equilibrium moves towards the products

:))))))))

Here is my Answer:

Explanation:

1Na2SO4 + Cacl2 → CaSO4 +2NaCl

The correct answer is option 4: 2,3-Dimethyloxan-4-one. In a crossed aldol addition reaction, two different aldehydes or ketones are used as reactants to form a β-hydroxy aldehyde or ketone.

The reaction involves the nucleophilic addition of an enolate ion to the carbonyl group of the other reactant, followed by dehydration.

When considering the reaction between ethanal (CH3CHO) and butanal (CH3(CH2)2CHO), there are several possible products that can be formed. Let's evaluate the options:

3-Hydroxybutanal (CH3(CH2)2CH(OH)CHO): This product can be formed by the nucleophilic addition of the enolate of ethanal to the carbonyl group of butanal. It is a valid product.

4-Hydroxybutanal (CH3(CH2)2CHOHCHO): This product can also be formed by the nucleophilic addition of the enolate of butanal to the carbonyl group of ethanal. It is a valid product.

2-Hydroxy-2-methylbutanal (CH3(CH2)2C(OH)(CH3)CHO): This product can be formed by the nucleophilic addition of the enolate of ethanal to the carbonyl group of butanal, followed by dehydration and methyl migration. It is a valid product.

2,3-Dimethyloxan-4-one: This compound does not correspond to a possible product resulting from the crossed aldol addition between ethanal and butanal. It does not involve the formation of a β-hydroxy aldehyde or ketone. Therefore, option 4 is not a possible product in this reaction.

Therefore, the correct answer is option 4: 2,3-Dimethyloxan-4-one.

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Answer:

H2

Explanation:

I would say H2 cause CH4 have less hydrogen gas .

At standard temperature and pressure conditions, both the balloons have equal grams of gas.

Standard temperature and pressure are defined as a standard set of conditions required for experimental measurements which are established to allow comparison between different sets of data.

Standards which are commonly used are those International Union of pure and applied chemistry and national institute of standards and technology.These are not universally accepted standards but are the ones which are commonly used.

Standard conditions of pressure and temperature are necessary to define standard reference conditions used to express volumes of liquids and gases.

These values are important to physicists, chemists ,engineers ,pilots and navigators.

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In case of exothermic or endothermic reactions  where heat is  absorbed  or released  there is a need to measure specific heat, change in temperature and time to heat.

An exothermic reaction is defined as a chemical reaction which involves release of energy in the form of light,heat .In these reactions, energy is transferred from system to surroundings rather than taking energy from surroundings into system as in endothermic reactions.

In an exothermic reaction,change in enthalpy is negative.Therefore, it can be inferred that net amount of energy which is required to start the exothermic reaction is less than the net amount which is released by the reaction.

Examples of exothermic reactions are combustion reactions, detonation of nitroglycerin , neutralization reactions and nuclear fission.

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The hybridization change that occurs for phosphorus in the reaction PCl3 + Cl2 → PCl5 is sp3 → sp3d.The hybridization change that occurs for phosphorus in the reaction PCl3 + Cl2 → PCl5 is sp3 → sp3d.PCl3 + Cl2 → PCl5The above reaction is a balanced chemical equation.

The phosphorus (P) atom in PCl3 has a hybridization of sp3, whereas the Cl2 molecule has a hybridization of sp2. During the formation of PCl5, there is a hybridization change in the phosphorus atom from sp3 to sp3d.A change in the hybridization of an atom occurs when it is involved in a chemical reaction. The changes in hybridization occur due to the difference in electronegativity of the atoms in the reactants or due to the bond formation.

For instance, in the reaction PCl3 + Cl2 → PCl5, the reaction occurs due to the formation of a covalent bond between the P atom in PCl3 and Cl atom in Cl2. This causes the electrons in the 3p subshell of the P atom to undergo excitation, resulting in the hybridization change from sp3 to sp3d.Hence, the correct answer is sp3 → sp3d.

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Metabolic acidosis would be the result of ketosis. A buildup of ketones in the body that is too great leads to metabolic acidosis.

An excess of acids in the blood can lead to metabolic acidosis. When our kidneys find it difficult to sufficiently eliminate acid from human blood, this occurs.

Because there is an excessive amount of ketone bodies in the blood, ketoacidosis would be a metabolic acidosis with a significant anion gap (keto-anions). The liver releases ketone bodies (acetoacetate, beta-hydroxybutyrate, and acetone) into the blood when the state of the liver's lipid metabolism shifts to one of greater ketogenesis.

In addition to assisting with fat loss, ketosis can reduce your appetite. It also aids in maintaining muscle. Ketosis typically begins to occur in healthy individuals who do not have diabetes and are not pregnant after 3 to 4 days of consuming just under 50 grams of carbohydrates each day.

Therefore, the outcome of ketosis will be Metabolic acidosis

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Answer:

Graham's law states that the rate of effusion or of diffusion of a gas is inversely proportional to the square root of its molecular weight. So, rate of diffusion of hydrogen gas is four times faster than oxygen gas.

Explanation:

Answer:

Rate of diffusion of hydrogen is higher than other gases because mass of hydrogen is very small and it diffuses easily.

Explanation:

Answer:

1. B = 1.13M

2. A. 8.46%

3. D = 0.0199

Explanation:

1. Molarity of a a solution = number of moles of solute/ volume of solution in L

Number of moles of solute = mass of solute/molar mass of solute

Molar mass of NaC₂H₃O₂ = 82 g/mol, mass of NaC₂H₃O₂ = 245 g

Number of moles of NaC₂H₃O₂ = 245 g / 82 g/mol = 2.988 moles

Molarity of solution = 2.988 mols/ 2.65 L = 1.13 M

2. Percentage by mass of a substance = mass of substance /mass of solution × 100%

Mass of 2.65 L of water = density × volume

Density of water = 1 Kg/L = 1000 g/L; volume of waterb= 2.65 L

Mass of water = 1000 g/L × 2.65 L = 2650 g

Mass of solution = mass of water + mass of solute = 245 + 2650 =2895 g

Percentage by mass of NaC₂H₃O₂ = 245/2895 × 100% = 8.46%

3. Mole fraction of NaC₂H₃O₂ = moles of NaC₂H₃O₂/moles of solution

Moles of water = mass /molar mass

Mass of water = 2650 g; molar mass of water = 18 g/mol

Moles of water = 2650 g / 18 g/mol = 147.222 moles

Moles of solution = moles of solute + moles of water = 147.222 + 2.988 = 150.21

Moles of NaC₂H₃O₂ =2.988 moles

Moles fraction of NaC₂H₃O₂ =2.988/150.21 = 0.0199

Answer:

D. Al

Explanation:

because ik my period table. ; )

Henry's law, a gas law in physical chemistry, asserts that the quantity of dissolved gas in a liquid is inversely proportional to the partial pressure of the gas above the liquid. Henry's law constant is the name of the proportionality constant.

William Henry, an English chemist, developed Henry's law around the beginning of the 19th century. It claims that the relationship between dissolved gas concentration and gas phase partial pressure is linear. The Henry's law constant is the name of the proportionality factor.

Kн K1 is equal to 1.25 x 10-3 mol dm-3 atm-2.

KH times Pgas equals soluble.

Solvability = 1.25 x 10-3 x 2.5

Solubility is equal to 3.125* 10-3 mol/dm2.

The Henry's law constant (KH), commonly known as the air-water partition coefficient, is the ratio of a compound's concentration in water to its partial pressure in the air at a given temperature.

For example, moles per cubic meter for water and atmospheres for air (atm-m3/mol), or in a dimensionless unit like KH′ = KH/(RT), where KH′ is the dimensionless unit Henry's law constant (atm-m3/mol), ideal gas constant (8.20575 105 atm-m3/mol-K), and water temperature (K).

When a compound's molecular weight is less than 200 grammes per mole and its Henry's law constant is more than 103 atm-m3/mol, it is often classified as volatile.

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