Consider the reaction 2H2(g)+O2(g)→2H2O(l) 2 H 2 ( g ) + O 2 ( g ) → 2 H 2 O ( l ) What is the mass of water, H2O(l) H 2 O ( l ) , produced when 5.70 g g of O2(g) O 2 ( g ) reacts with excess H2(g) H 2 ( g ) ?hen 5.70 g g of O2(g) O 2 ( g ) reacts with excess H2(g) H 2 ( g ) ?

Radical bromination of (S)-3-methylhexane results in 3-bromo-3-methylhexane as the main byproduct, which is optically inactive. The branching hydrocarbon 3-methylhexane has two enantiomers. It belongs to the family of heptane isomers.

One of heptane's two structural isomers, 2,3-dimethylpentane, and this particular molecule both possess the chirality property. They are (R)-3 methylhexane and (S)-3 methylhexane, respectively. Bromomethane is the natural product. This is a substitution process because one of the hydrogen atoms in the methane has been swapped out for a bromine atom. Enantiomers are stereoisomers that cannot be superimposed mirror images of one another. Depending on how each stereocenter is set up, enantiomers are different. In terms of handedness, they can be compared to gloves for the right or left hand.

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Answer:

C

Explanation:

Answer:

Hydrolysis of pyrophosphate

Explanation:

The hydrolysis of pyrophosphate into two molecules of inorganic phosphate (Pi) reaction which is highly energetic that drives the other two reactions. These two reactions highly exergonic reactions that take place inside the aminoacyl-tRNA synthetase which is specific for that amino acid. Exergonic reactions are the reactions that produce free energy that can be used in the next phases of reactions so we can say that  hydrolysis of pyrophosphate is responsible for the happening of aminoacylation reaction.

Answer:

the most useful hydrocarbon is fuel.

Explanation:

some examples like: natural gases,coal,diesel fuel, kerosene etc.

The most useful hydrocarbon is fuel like gasoline, natural gas, fuel oil, diesel, jet fuel, coal, kerosene, and propane.

The term hydrocarbon is defined as the compound which is made up of hydrogen and carbon. They are useful as energy sources. Hydrocarbons are examples of group 14 hydrides.

There are four types of hydrocarbon that are alkanes, alkenes, alkynes and aromatic hydrocarbons.

Among the most widely used hydrocarbon fuels include gasoline, natural gas, fuel oil, diesel, jet fuel, coal, kerosene, and propane. Plastics and synthetic fabrics like polyester are made using hydrocarbons as well.

Thus, The most useful hydrocarbon is fuel like gasoline, natural gas, fuel oil, diesel, jet fuel, coal, kerosene, and propane.

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Answer:

Convex

Explanation:

8 guess not sure cause light rays should be converging to meet to their eye

Answer:

D.

Explanation:

The group of organic molecule polymers with the most complex and

diverse three-dimensional structure is Protein.

This is a biological macromolecule which comprises of one or more chains

of amino acids. They are very important as they are involved in many

biological activities in the body.

Protein has the most  complex and diverse three-dimensional structure

because there are over twenty amino acids which are arranged uniquely

to form different types of protein.

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Explanation:

Carbon-14 has a half life of 5730 years, meaning that 5730 years after an organism dies, half of its carbon-14 atoms have decayed to nitrogen atoms. Similarly, 11460 years after an organism dies, only one quarter of its original carbon-14 atoms are still around.

Explanation:

What factors affect purity?

A1: The key parameters that can be controlled in an emew cell are current density, flow rate, electrolyte temperature, and plating time. The current density controls the production rate, while the flow rate, temperature, and plating time can all have an impact on the product

What factors affect yield?

The yield and rate of a chemical reaction depend on conditions such as temperature and pressure. In industry, chemical engineers design processes that maximise the yield and the rate at which the product is produced. They also aim to reduce waste and energy costs at all stages of the process.

HOPE THIS HELPS YOU THANK YOU.

Answer:

Hot and rainy conditions

Explanation:

High temperatures and greater rainfall increase the rate of chemical weathering. Rocks in tropical regions exposed to abundant rainfall and hot temperatures weather much faster than similar rocks residing in cold, dry regions. A cold, dry climate will produce the lowest rate of weathering. A warm, wet climate will produce the highest rate of weathering. The warmer a climate is, the more types of vegetation it will have and the greater the rate of biological weathering.

Got these from the internet to help explain. Hope it helps!

Answer:

Because there is some element which is already in an octet state and has no need to achieve it, they have a full electron in their outermost shells such as helium, argon etc.

1. 82554000 mg medicine should be given to 182 pound person

2. 0.036  

Here in the 1st question given data is 8.70 kg of medicine per kg of body then, we have to calculate medicine should be given to 182 pound person = ?

Then we have to convert 182 pound into kg then,

1 pound = 0.454 kg

Then, 182 pound = 82.554 kg

Now we have to convert kg in mg then

1 kg = 10⁶ mg

Then,  82.554 kg = 82554000 mg

82554000 mg  medicine should be given to 182 pound person

Here in the 2nd question given data is 36 joules then we have to calculate how many kilojoules = ?

So 1 joule = 0.001 kilojoule

Then 36 joules = 0.036 kilojoule

Here in 2nd question says that do not write answer in unit so, 36 joules = 0.036

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The force applied to the rocket by its engines remains constant as it moves up, while its mass decreases, resulting in an increase in acceleration.

Newton's laws of motion provide an explanation for the acceleration of a rocket as it moves away from the ground. According to Newton's second law, the force exerted on an object is directly proportional to its acceleration, and the force required to move an object increases as its mass increases.

In the case of a rocket, its mass decreases as it consumes fuel, which means that less force is required to move it as it climbs higher into the atmosphere.

As the rocket moves up, its acceleration increases while the force exerted on it remains constant. Newton's second law of motion explains that the acceleration of an object is directly proportional to the force applied to it. According to the second law of motion, an object's acceleration is equal to the force exerted on it divided by its mass.

This means that as the rocket climbs higher and its mass decreases due to the consumption of fuel, less force is required to accelerate it, and so its acceleration increases. In other words, the rocket's acceleration is increasing because the force required to move it is decreasing due to the decreasing mass of the rocket.

This phenomenon is also related to Newton's third law of motion, which states that every action has an equal and opposite reaction. The force exerted by the rocket's engines is balanced by an equal and opposite force exerted on the rocket by the exhaust gases, according to this law.

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As combustion always result into the formation of water, the other type of reactions that may result into formation of water are Acid-Base Neutralization Reactions and Hydrogen and Oxygen Reaction.

Acid-Base Neutralization Reactions:

A neutralisation reaction is a chemical process in which an acid and a base combine to produce salt and water as the end products.

H⁺ ions and OH⁻ ions combine to generate water during a neutralisation reaction. Acid-base neutralisation is the most common type of neutralisation reaction.

Example: Formation of Sodium Chloride (Common Salt):

HCl + NaOH → NaCl + H₂O

Hydrogen and Oxygen Reaction:

Water vapour is created when hydrogen gas (H₂) and oxygen gas (O₂) are combined directly. This reaction produces a lot of heat and releases a lot of energy.

Example: 2 H₂ + O₂ → 2 H₂O

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Answer:

64

Explanation:

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The atomic number(Z) is equal to the number of protons to equal to number of electrons.

The number of neutrons is equal to atomic mass minus the atomic number

n=A-Z

For Zn^2+, Z=28, e=28

For iron, Z=25,A=55

The number of neutrons is 55-25=30

The charge is zero

For O^2-, Z=8+2=10, n=p=10

The number of neutrons is 16-10=6

For sulfur, Z=16,A=34

For S2-, Z=16+2=18, A=34

The charge is 2-

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Explanation:

First, you need to balance the equation:

N2    +  3 H2   ====>    2  NH3

                  so three moles of H2   result in  2 moles of NH3

                               ratio of   3:2

How many moles of NH3 is 36.5 gm  ??

   Using periodic table NH3 mole weight = 14.007  + 3*1.008 =17.031 g/mole

     36.5 g / 17.031 g/mole = 2.14 moles  of NH3

Using the ratios above   3/2 = x / 2.14   shows x = 3.21 moles of H2 needed

Answer:

A.wood

Explanation:

It is a poor conductor of heat

Answer:

= 15.51 mL

Explanation:

Here's is the reaction:

2HgO(s) ⇒ 2 Hg(s)+O₂(g)

In this reaction 2mol HgO =  1mol O₂

The molecular weight of HgO = 216.59g

so, 3.0g HgO = 3.0g x 1.00molHgO/216.59gHgO

= 0.0138511 molHgO

The amount of Oxygen follows:

0.0138511 molHgOx1/2= 0.00692555 mol O₂

Now, volume of 1 any gas = 22400mL

so, 0.00692555 mol O₂ x22400mLO₂/1mol O₂

= 15.513232mL O₂

Answer:

where is the picture?

Explanation:

no picture at all....

Based on the potential ligands given, C2O42- and CO32- can form a maximum of two bonds to a metal

ion.

Ligands are ion or molecule that binds to a central metal atom to form a coordination complex.

Ligands are essential in many biological and enzyme complexes.

From the potential ligands given;

Therefore, the potential ligands, C2O42- and CO32- can form a maximum of two bonds to a metal

ion.

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Answer:

D. adhesion and cohesion

When you are sweating or shivering, you are exhibiting your limits of tolerance.

The human body can only withstand certain amounts of environmental stress. A key element in defining the body's tolerance limitations is temperature. Only a small range of temperatures is tolerable for the human body, and both hypothermia and hyperthermia can be fatal. Air pressure and humidity both have an impact on how well the body can withstand the environment. Altitude sickness and dehydration are both caused by low air pressure and high humidity, respectively. The body's capacity to endure the environment can also be impacted by pollution and chemical exposure. While exposure to radiation can result in cancer and genetic damage, noise pollution can also induce stress and hearing loss. Overall, a complex interplay of many environmental influences affects the human body's tolerance thresholds.

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Answer:

\(m_{mixture}=52g\)

Explanation:

Hello.

In this case, since your mixture is composed by sugar and water, its mass turns out:

\(m_{mixture}=m_{sugar}+m_{water}\)

Whereas the mass of sugar is 2 g and the mass of water is 50 g, therefore, the result is:

\(m_{mixture}=2g+50g\\\\m_{mixture}=52g\)

Best regards.

Answer:

A) Using the ideal gas law, we can calculate the number of moles of gas present:

```

PV = nRT

```

where:

* P = pressure (atm) = 1 atm

* V = volume (L) = 5.6 L

* n = number of moles of gas

* R = ideal gas constant = 0.08206 L atm / mol K

* T = temperature (K) = 273.15 K

Solving for n, we get:

```

n = (P * V) / RT

```

```

n = (1 atm * 5.6 L) / (0.08206 L atm / mol K * 273.15 K)

```

```

n = 0.25 mol

```

Therefore, there are 0.25 moles of gas present.

B) The molar mass of the gas can be calculated by dividing the mass of the gas (8.0 g) by the number of moles of gas (0.25 mol):

```

Molar mass = Mass / n

```

```

Molar mass = 8.0 g / 0.25 mol

```

```

Molar mass = 32 g/mol

```

The molar mass of the gas is 32 g/mol.

C) The common atmospheric gas with a molar mass of 32 g/mol is oxygen (O2). Therefore, the gas that was collected is oxygen.

Explanation:

4.69 g of oxygen gas is consumed by the reaction of 2.0 g of ammonia.

What is Atomic Mass?

Atomic mass is the mass of an atom of a chemical element, expressed in atomic mass units (amu). It is a measure of the total number of protons and neutrons in the nucleus of an atom. The atomic mass is usually given relative to the mass of a carbon-12 atom, which is assigned a mass of exactly 12 atomic mass units.

The balanced chemical equation for the reaction is:

4NH3 + 5O2 → 4NO + 6H2O

From the equation, we can see that 4 moles of NH3 reacts with 5 moles of O2. We need to determine how many moles of NH3 we have, and then use the mole ratio to calculate the number of moles of O2 needed.

First, we calculate the number of moles of NH3:

moles of NH3 = mass of NH3 / molar mass of NH3

moles of NH3 = 2.0 g / 17.03 g/mol (molar mass of NH3)

moles of NH3 = 0.1174 mol

Now we use the mole ratio from the balanced chemical equation to calculate the number of moles of O2:

moles of O2 = (5/4) x moles of NH3

moles of O2 = (5/4) x 0.1174 mol

moles of O2 = 0.1468 mol

Finally, we can use the number of moles of O2 to calculate the mass of O2 consumed:

mass of O2 = moles of O2 x molar mass of O2

mass of O2 = 0.1468 mol x 32.00 g/mol (molar mass of O2)

mass of O2 = 4.69 g

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Answer:

It reflects the amount of force an object exerts. It states that every object attracts another object.

The reagents are H2, Pd/C at step 1 and H2, Lindlar's cat at step 3. The reactants are 1.1) NaNH2, 1.2) 1-bromo-2 methylpropane, 2.1) NaNH2, 2.2) 2 butanone, and 2.3) H+.

When the base H2, Pd/C reagent reacts with any NaNH2, an acidic proton is initially abstracted, leaving carbon with a negative charge that will be counterbalanced by any plus. Now, this alliance will attack the chemical one bromo three methylpropane from the back, releasing a negative. And substance B is created. NaNH2 and Compound B will react. There is acidic hydrogen compound B present, and NaNH2 will eliminate it. 2 Butane reacts with hydrogen that is acidic  to produce Compound C which further reacts with reagent H2, Lindlar's cat to produce final product.

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