Indicate the direction of polarity of each of the following covalent bonds. Please just write a + or - not the bonds.
1. C ---- O
2. O ---- Cl3. O ----- F4. C ----- N5. Cl ----- C6. S ----- H7. S ----- Cl

Answer:

C3H7O + O2 → CO2 + H2O

Explanation:

a) The full symbol equation for the oxidation reaction of an isomer of C3H7O can be represented as:

C3H7O + O2 → CO2 + H2O

b) The proper reagent for this oxidation reaction is O2 (oxygen gas). The catalyst required for this reaction depends on the specific conditions. Common catalysts used for oxidation reactions include transition metals such as platinum (Pt), palladium (Pd), or copper (Cu).

c) There is no need to remove the product (CO2 and H2O) from the reaction vessel because they are typically in the gas or liquid phase and do not significantly interfere with the reaction. The product gases can be easily vented out of the vessel, while the liquid water can be left in the reaction mixture. Additionally, the product CO2 is a stable and inert gas, which does not pose any hazards in most cases. Therefore, it is often not necessary to remove the products after the reaction is complete.

Using 645 L /s of oxygen at 195 ° C and 0.88 atm will result in 0.355kg/s of NO.

First, we go through the equation for the conversion of NH3 to NO: 4NH3(g) + 5O2(g) ⟶4 NO(g) +6 H2O(l). (l)

Next, we compile the data that will be used in our computations.

645 L/s O2 Volume Rate

0.88 atm of pressure

Temperature is equal to 195°C plus 273°K.

NO has a molecular mass of 30.01 g/mol.

Third, using the basic gas equation PV =n RT, we must determine how many moles (n) are contained in 645L of O2 in order to compute the number of NO moles created by this amount of O2.Keep in mind that the constant R in this equation is 0.08205Lxatm/Kxmol.

PV =n RT

n= PV / RT

n= [0.08205 Lxatm/Kxmol] x 468K / [(0.08atm x 645L/s)]

n= 14.781 moles of oxygen per second.

Fourth, now that we know how many moles of O2 will be created, we can use the equation to determine how many moles of NO will also be produced. Finally, with the help of the molecular weight, we will be able to get the total mass per second.

14.781 moles of O2 x 4 moles of NO x 5 moles of O2 x 30.01g of NO x 1 mol of NO x 1 kg of NO /1000g of NO = 0.355 kg/s of NO

Complete question:

Nitric acid is a key industrial chemical, largely used to make fertilizers and explosives. The first step in its synthesis is the oxidation of ammonia. In this reaction, gaseous ammonia reacts with dioxygen gas to produce nitrogen monoxide gas and water. Suppose a chemical engineer studying a new catalyst for the oxidation of ammonia reaction finds that liters per second of dioxygen are consumed when the reaction is run at and . Calculate the rate at which nitrogen monoxide is being produced. Give your answer in kilograms per second. Round your answer to significant digits.

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Answer:

a)

        Zn(s) + 2 H⁺(aq) ⇒ Zn²⁺(aq) + H₂(g)

#p⁺    30          2              30             2

#e⁻    30          0              28             2

b) 32

c) 30

d) Zn

Explanation:

There is some info missing. I will add the complete question.

Consider the following oxidation/reduction reaction.

         Zn(s) + 2 H⁺(aq) ⇒ Zn²⁺(aq) + H₂(g)

#p⁺                                                     2

#e⁻                                                     2

a) Fill in the number of protons and electrons for each product and reactant (two boxes have been filled in for you).

b) Verify that the number of protons on the left side of the chemical equation is equal to the number of protons of the right side. Show your work.

c) Verify that the number of electrons on the left side of the chemical equation is equal to the number of electrons of the right side. Show your work.

d) Which substance is being oxidized?

a) The atomic number of Zn is 30 so it will have 30 protons. Since it ts neutral, it will also have 30 electrons. Zn²⁺ will also have 30 protons but it lost 2 electrons, so it has 28 electrons. The atomic number of H⁺ is 1, so each H atom will have 1 proton (2 in total). But since H has 1 electron, and H⁺ lost 1 electron, H⁺ will have 0 electrons. The complete chart is:

        Zn(s) + 2 H⁺(aq) ⇒ Zn²⁺(aq) + H₂(g)

#p⁺    30          2              30             2

#e⁻    30          0              28             2

b) The total number of protons on the left side is: 30 + 2 = 32.

The total number of protons on the right side is: 30 + 2 = 32.

c) The total number of electrons on the left side is: 30 + 0 = 30.

The total number of electrons on the right side is: 28 + 2 = 30.

d) Zn(s) is oxidized because it loses electrons (from 30 to 28) and its number increases.

Answer:

10,033,232 joules

10,033.232 kilojoules

2.78837209 kilowatt-hours

Explanation:

2398 * 4184 =

2398 * 4.184 =

2398 / 860 =

Answer:

???

Explanation:

In descending order

Halogen

Non metal

Noble Gas

Halogen

Non metal

Answer:

Option C. The same number of energy levels.

Explanation:

From the diagram given above, element (i) belong to group 2 while element (ii) belong to group 6.

Also, both element i and ii belong to the same period (i.e period 4). This simply means that both element i and ii have the same number of energy levels.

NOTE: Elements in the same period have the same number of shells of electrons which simply means they have the same energy levels.

Answer:

It is because some elements have the symbol of their Latin names for example - Latin name of sodium is Natrium and potassium is Kalium .Thatswhy their symbol differs from their modern name .

The bond length has been defined by the distance shared by the covalently bonded atoms. C≡N (887 kJ/mol) has the longest bond followed by C=N and the shortest C-N.

Bond length is a parameter that defines the bond distance and measures the length between the bonded atoms. It is determined by bonded electrons.

The bond energy and bond length are directly related and hence the C≡N (887 kJ/mol) has the longest bond length because of high energy followed by C=N (615 kJ/mol) and the shortest C-N (305 kJ/mol).

Therefore, the order of bond length is C≡N > C=N > C-N.

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Answer:

Physical science, in turn, can be divided into chemistry and physics. Chemistry is the study of matter and energy at the scale of atoms and molecules. ... Physics is the study of matter and energy at all scales—from the tiniest particles of matter to the entire universe but i dont really know if there is new information to discover

Explanation:

hope it help and if it doesnt sorry ;)

Answer:

Some substances can change from the solid state to the gas state without ever becoming a liquid. During this process, known as sublimation, the sur- face particles of the solid gain enough energy to become a gas.When dry ice becomes a gas, it absorbs thermal energy from water vapor in the air.

Explanation:

The vessel's internal pressure is atm, is  \(6.66*10^{-6} atm\)

A vacuum pump is a machine that expels air or gas from a sealed space in order to create a partial vacuum and a difference in pressure. Based on the pressure needs and the application it serves, vacuum pumps are designed using a range of technologies.Fatal accidents have happened in the history of pressure vessel invention and use, proving that pressure vessels can be harmful.A container designed to carry gases or liquids at a pressure much higher than atmospheric pressure is known as a pressure vessel.

The pressure in the vessel in atm is \(6.66 * 10^{-6} atm\).

To calculate this, we first convert \(5.0 * 10^{-3} mmHg\) to atm.

1 mmHg = 0.001315789 atm

Here, \(5.0 * 10^{-3} mmHg = 6.66 * 10^{-6} atm.\)

Therefore, the pressure in the vessel in atm is \(6.66*10^{-6} atm\)

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The specific heat capacity of the metal can be calculated to be 2.03 J/g･ °C. This result can be explained by the fact that the heat lost by the metal is equal to the heat gained by the ethylene glycol, since no other source of heat is present.

Specific heat capacity is the amount of heat energy needed to raise the temperature of a unit mass of a substance by 1 degree Celsius. It is measured in joules per kilogram Kelvin (J/kg K).

The specific heat capacity (c) of the metal can be calculated using the following equation:

Q = mc∆T

Where Q is the heat lost by the metal, m is the mass of the metal, and ∆T is the change in temperature of the metal.

Q = (115.0 g)(c)(165.0 °C - 25.8 °C)

On the other hand, the heat gained by the ethylene glycol can be calculated using the following equation:

Q = (265.0 g)(2.43 J/g･ °C)(41.5 °C - 25.8 °C)

By equating the two equations, we can solve for the specific heat capacity of the metal:

(115.0 g)(c)(165.0 °C - 25.8 °C) = (265.0 g)(2.43 J/g･ °C)(41.5 °C - 25.8 °C)

c = 2.03 J/g･ °C

Therefore, the specific heat capacity of the metal can be calculated to be 2.03 J/g･ °C.

This result can be explained by the fact that the heat lost by the metal is equal to the heat gained by the ethylene glycol, since no other source of heat is present.

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Explanation:

If a large photon strikes the surface, that has enough strength to take out an electrode, which will then travel to the positive side since it is negative. Current is flowing at this stage. Since the reduced photons will be unable to distinguish between atoms, no power can pass.

Answer:

They are symbols of elements.

Ra is the symbol of the element Radium

Ah is the symbol of the element Arrhenium

Ma  is the symbol of the element Molybdenum

Ga  is the symbol of the element Gallium

La  is the symbol of the element Lanthanum

Answer:

Ra is the symbol of the element Radium

Ah is the symbol of the element Arrhenium

Ma  is the symbol of the element Molybdenum

Ga  is the symbol of the element Gallium

La  is the symbol of the element Lanthanum

Explanation:

They are elements

The total number of cation is 1 and the total number of anion is 1.

The positively charged particles are called as cation and the negatively charged particles are called as anions.

The number of atoms present in unit cell at corner are 4 red ( B cation ) 4 Blue (A cations)

Total number of cations at the corner = 8

1 atom at corner have 1/8th of its portion

8 atom have 1/8th × 8 atom = 1 atom

Number of cation = 1

Atoms at the edge contributes ¼ th portion

There are 4 anions at edges

Contribution from 4 anions

= 1 / 4 × 4

= 1

Total anions = 1

Total cations = 1

Thus, the total number of cation is 1 and the total number of anion is 1.

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Answer:

the transition from water to steam is call evaporation.

Explanation:

water evaporates or vaporizes and turns into steam this typically happens when heat meets with the water. an example would be if you boil water steam will release from the pot, or when it rains, snows, etc (precipitation) the water evaporates and the ground dries.

B. Their valence shell are full of electrons

That is the main characteristic of noble gases, and it is because of this that they are very stable, very unreactive and they have very low condensation temperature.

Answer:

2

Explanation:

Using m/M=It/nF

0.325/65=0.5×(32×60+10)/96500n

n=62725/31362.5

n=2

It's never a good idea to use your credit card when experiencing strong emotions, especially if you tend to steer toward 'retail therapy.

Answer:

ok, here is your answer

Explanation:

AI-generated answer

To find the mass of oxygen that reacted, we need to use the Law of Conservation of Mass, which states that in a chemical reaction, the mass of the reactants equals the mass of the products.

First, we need to find the number of moles of hydrogen that reacted:

Molar mass of hydrogen (H₂) = 2.016 g/mol

Number of moles of H₂ = mass/molar mass = 46.2 g/2.016 g/mol = 22.92 mol

Next, we need to use the balanced chemical equation to find the number of moles of water produced:

hydrogen + oxygen → water

2H₂ + O₂ → 2H₂O

From the equation, we can see that for every 2 moles of H₂, 1 mole of O₂ is required to produce 2 moles of H₂O. Therefore, the number of moles of O₂ required to produce 22.92 moles of H₂O is:

Number of moles of O₂ = 1/2 x 22.92 mol = 11.46 mol

Finally, we can find the mass of oxygen that reacted by using its molar mass:

Molar mass of oxygen (O₂) = 32.00 g/mol

Mass of oxygen = number of moles x molar mass = 11.46 mol x 32.00 g/mol = 366.72 g

Therefore, the mass of oxygen that reacted is 366.72 g.

Answer: 404.71 ML

Explanation:

We can use Boyle's Law to solve this problem, which states that the pressure and volume of a gas are inversely proportional at a constant temperature.

Boyle's Law equation: P1V1 = P2V2

Where:

P1 = initial pressure

V1 = initial volume

P2 = final pressure

V2 = final volume

Given:

P1 = 3.6 atm

V1 = 95 mL

P2 = 0.85 atm

We can rearrange the equation to solve for V2:

V2 = (P1V1)/P2

V2 = (3.6 atm * 95 mL)/(0.85 atm)

V2 = 404.71 mL

Therefore, the final volume of the gas is approximately 404.71 mL. Hopefully this helps gang fasho

We can use Boyle's law to solve this problem, which states that the pressure of a gas is inversely proportional to its volume when temperature and amount are held constant. The formula is:

P1V1 = P2V2

Where:

P1 = 3.6 atm (initial pressure)

V1 = 95 mL (initial volume)

P2 = 0.85 atm (final pressure)

V2 = ? (final volume)

Substituting the given values, we get:

(3.6 atm)(95 mL) = (0.85 atm)(V2)

Simplifying, we get:

V2 = (3.6 atm)(95 mL) / (0.85 atm)

V2 = 404.7 mL

Therefore, the final volume of the gas is 404.7 mL.

Answer:

11.5 g

Explanation:

28.0 g

−

16.5 g

=

11.5 g

2 moles of CaSO4 are required to produce 128 g of SO2 in 3CaSO4 + CaS → 4CaO + 4SO2 in this equation.

The term mole is defined as a standard scientific unit for measuring large quantities of very small entities such as atoms, molecules, or other specified particles.

1 mole = 6.023 × 10²³ molecules

The balance equation is as follows:

3CaSO4 + CaS → 4CaO + 4SO2

1 mole = 6.023 × 10²³ molecules

1 mole SO₂ = 6.023 × 10²³ molecules

128 mole = ?

Molar mass of SO₂ = 64 gram

The numbers of moles in 128 gram SO₂ = 1 / 64 ×128

= 2 moles

Thus, 2  moles of CaSO4 are required to produce 128 g of SO2.

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The amount in, formula unit. of 33.4 g sodium hydroxide is 5.03 x \(10^{23\) . Option C.

In order to calculate the mass of NaOH from formula units, first, we need to know the molar mass of NaOH, which is 40 g/mol1.

The formula units are related to moles by Avogadro’s number which is 6.022 x 10^23 formula units per mole.

Therefore, we can calculate the mass of NaOH as follows:

33.4 g NaOH = (33.4 g NaOH / 40) x (6.022 x 10^23) = 5.03 x \(10^{23\) formula units.

In other words, there are 5.03 x \(10^{23\) formula units in 33.4 g sodium hydroxide.

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After precipitation falls, the water moves into the lithosphere through openings in the rock or soil. This process is called percolation.

Therefore, Option C is the correct option.

Evaporation is defined as the process of conversion of liquid into vapours.

For example: Conversation of water into water vapours.

But int he question, there is no conversion. So this option is incorrect option.

Sublimation is the process of conversion of solid directly into the vapour phase

Since, there is no conversion of of solid into vapours. So, this option also incorrect option.

Mineralization is defined as the process through which chemicals which is present in organic matter are decomposed or oxidized easily in the available forms to plants.

As there is no decomposition of minerals. So, this is also incorrect option.

Percolation is defined as the process in which liquid slowly allow to pass through a filter.

So, this is correct option.

Thus, we concluded that the water moves into the lithosphere through openings in the rock or soil. This process is called percolation.

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the answer is is is is is is is is is is is is is is