What is the net ionic equation for a reaction between HCl and NaOH

By increasing the temperature the volume of the gas be increased if the pressure is constant

According to the graph, when the pressure of the gas is held constant, increasing the temperature of the gas will cause the volume to increase.

Therefore, the correct answer is option D: "By increasing the temperature." This is known as Charles's Law, which states that at a constant pressure, the volume of a gas is directly proportional to its temperature.

Hence option D is the correct solution

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Answer:

Ans: 8.9 NaCl

Explanation:

Ocean water contains 3.5 nacl by mass how much salt can be obtained from 254 g of seawater

Question: Ocean water contains 3.5% NaCl by mass. How much salt can be obtained from 254g of seawater?

Answer:

The speed of light is the speed at which light travels. No, an object cannot move at the speed of light.  

Explanation:

The speed of light is 186,000 miles per second. An object with mass cannot move at the speed of light since it would take an infinite amount of energy to achieve that velocity, since only massless particles can travel at the speed of light. Also, you would have to factor in air friction, meaning even if an object were to reach such high speeds, it would instantly disintegrate.

Answer:

B. the molecules in liquid are loosely packed and scattered thus, they cannot be arranged

(i) A mole is the amount of a substance containing 6.022 × 10²³ particles.

(ii) Compounds are formed by the chemical bonding of different elements.

(iii) Molecular mass is the sum of atomic masses in a molecule.

(iv) There are two types of mix homogeneous and heterogeneous mixtures.

(v) Free radicals are highly reactive species with unpaired electrons.

(vi) Gram formula mass is the sum of atomic masses expressed in grams per mole.

(i) Mole: A mole is defined as the quantity of a substance that has an equal number of particles that are in 12 grams of carbon-12.

It is denoted by mol and is used in chemistry to measure quantities of atoms or molecules.

Example:1 mol of oxygen gas contains 6.022 × 10²³ oxygen molecules.

(ii) Compounds: Compounds are substances made up of two or more different elements that are chemically bonded together.

They can be broken down into simpler substances through chemical reactions.

Example:Water (H2O) is a compound made up of two hydrogen atoms and one oxygen atom that are chemically bonded together.

(iii) Molecular Mass: The molecular mass of a compound is the sum of the atomic masses of all the atoms in the molecule.

It is expressed in atomic mass units (amu) or grams per mole.

Example:The molecular mass of water (H2O) is 18.015 amu.

(iv) Types of Mixture: A mixture is a combination of two or more substances that are not chemically combined.

There are two types of mixtures - homogeneous and heterogeneous.

Example:A homogeneous mixture is a solution, such as saltwater, where the solute (salt) is evenly distributed in the solvent (water).

A heterogeneous mixture is a mixture that is not evenly distributed, such as oil and water.

(v) Free Radical: A free radical is an atom or molecule that has an unpaired electron in its outer shell and is highly reactive. They can be both harmful and helpful to the human body.

Example:A common free radical is the hydroxyl radical (OH·) that is formed by the body during metabolism.

(vi) Gram formula mass: The gram formula mass is the sum of the atomic masses of all the atoms in a compound.

It is expressed in grams per mole and is used to determine the mass of a certain number of molecules or atoms.

Example:The gram formula mass of water (H2O) is 18.015 g/mol.

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The asbestos exposure during the years 1982 and 1983 was 2.5 fibers per cubic centimeter and 0.8 fibers per cubic centimeter respectively. So asbestos exposure decreased by 1.7 fibers per cubic centimeter during the year 1983.

Breathlessness Persistent, dry cough Chest pain or tightness Lack of a dry, crackling sound in the lungs when you breathe in Wider and rounder fingers and toes are some of the symptoms of asbestos exposure.

The largest group of people exposed to asbestos is those working in the construction industry. Historically, asbestos was also used by pipe fitters and shipyard workers. In addition, asbestos was used by military personnel, auto mechanics, and many other occupations.

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Answer:c1h3o1

Explanation:

Ahahah I’m getting points nah jp here

C1h3o1

answer: 3057.44 m^3

Explanation:

This is Charles Law which is V1/T1=V2/T2  and temp must be in kelvin

So v2=V1 x T2/T1

v2= 3100 X 359.15 / 364.15  = 3057.44 m^3

t1= 91 +273.15 = 364.15

t2=86+273.15 =359.15

Answer:

\(Molec_{\ H_{tot}}=1.206x10^{25}molec\)

Explanation:

Hello.

In this case, taking into account that HCl has one molecule of hydrogen per mole of compound which weights 36.45 g/mol, we compute the number of molecules of hydrogen in hydrochloric acid by considering the given mass and the Avogadro's number:

\(molec_{\ H}=3.65gHCl*\frac{1molHCl}{36.45gHCl} *\frac{1molH}{1molHCl}*\frac{6.022x10^{23}molec_\ H}{1molH} =6.03x10^{22}molec\)

Now, from the 180 g of water, we see two hydrogen molecules per molecule of water, thus, by also using the Avogadro's number we compute the molecules of hydrogen in water:

\(molec_{\ H}=180gH_2O*\frac{1molH_2O}{18gH_2O} *\frac{2molH}{1molH_2O}*\frac{6.022x10^{23}molec_\ H}{1molH} =1.20x10^{25}molec\)

Thus, the total number of molecules turns out:

\(Molec_{\ H_{tot}}=6.03x10^{22}+1.20x10^{25}\\\\Molec_{\ H_{tot}}=1.206x10^{25}molec\)

Regards.

The correct options are: changes in shape or size, color changes, formation of precipitates or gases, and whether changes are easily reversible.

According to the lab guide, the following changes below will be looked for in order to test the hypothesis: changes in shape or sizecolor changesformation of precipitates or gaseswhether changes are easily reversibleThese changes are the characteristics that will be observed in order to test the hypothesis in the lab. Furthermore, temperature changes and changes of state (gas, liquid, or solid) may also occur and can be observed while testing the hypothesis.

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Answer:

A,B,E,F

Explanation:

1. The IUPAC name of N is nitrogen.

2. Nitrogen dioxide

3.The IUPAC name of O is oxygen

4.The IUPAC name of OH is hydroxyl.

The IUPAC name of ·0 is a radical. It is commonly found in organic chemistry and plays an important role in many reactions.

IUPAC names for the given compounds are:1.1. N: Nitrogen

The IUPAC name of N is nitrogen.

It is a non-metal and belongs to group 15 in the periodic table. It has an electronic configuration of 1s2 2s2 2p3.1.2. NO2: Nitrogen dioxide

Explanation: NO2 is a chemical compound that is formed by the combination of nitrogen and oxygen. It is a reddish-brown gas that has a pungent odor.

The IUPAC name of NO2 is nitrogen dioxide.1.3. O: Oxygen

Explanation: The IUPAC name of O is oxygen.

It is a non-metal and belongs to group 16 in the periodic table. It has an electronic configuration of 1s2 2s2 2p4.

X: UnknownExplanation: No IUPAC name can be given to an unknown compound as the structure and composition are not known.

Y: Hydroxyl Explanation: The IUPAC name of OH is hydroxyl.

It is a functional group that is composed of an oxygen atom and a hydrogen atom (-OH). It is commonly found in alcohols and phenols. ·0: RadicalExplanation: A radical is a molecule or an ion that contains an unpaired electron.

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Note: The complete question is given below

Provide the IUPAC names for the following compounds:

\(CH_3CH_2CH(CH_3)CH_2CH_2CH_2CH_3\)

C6H5CH(CH3)2

H2NCH2CH2CH2CH2CH2NH2

CH3CH2CH2CH2CH2OH

CH3CH2CH2CHOHCH3

There are approximately 0.16 moles of gas present in the lungs.

To solve this problem, we can use the ideal gas law, which relates the pressure (P), volume (V), number of moles (n), and temperature (T) of a gas:

PV = nRT

where R is the gas constant.

First, we need to convert the temperature to Kelvin:

T = 37°C + 273.15 = 310.15 K

Next, we can plug in the given values:

P = 1.0 atm

V = 4.0 L

T = 310.15 K

We also need to find the value of R, which depends on the units we are using for pressure, volume, and temperature. In this case, we are using atmospheres, liters, and Kelvin, so we can use the value:

R = 0.08206 L·atm/K·mol

Now we can rearrange the ideal gas law to solve for the number of moles:

n = PV/RT

n = (1.0 atm)(4.0 L)/(0.08206 L·atm/K·mol)(310.15 K)

n = 0.1638 mol

Therefore, there are approximately 0.16 moles of gas present in the lungs.

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Answer:

D

Explanation:

Answer:

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Explanation:

Answer:

The three pKa values for phosphoric acid (H3PO4) are 2.12, 7.21, and 12.32.

Answer:

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D.

ionic bonding because one atom gains an electron and the other atom loses an electron

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The attractive interactions between atoms and molecules lead to bonding. NaCl shows ionic bonding because an atom gains and other loses an electron. Thus, option D is correct.

The chemical bonds that include the electrostatic attraction and forces to form the linkage between the opposite charges are said to have ionic bonds.

The ionic bonds are characterized by the presence of differences in the electronegativities that allow the opposite charges to interact efficiently. The bonds are formed between negative and positive charges.

The NaCl molecule has ionic bonds as sodium has more electron that tends to donate electrons while the chlorine atoms have one less valence electron that tends to gain an electron.

Therefore, in option D, the NaCl molecule shows ionic bonding as they have cations and anions.

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The value of ΔG at 25 °C for the given reaction is: ΔG = -370.4 kJ/mol + 0 = -370.4 kJ/mol So, the correct answer is -370.4 kJ/mol

To determine the value of ΔG (Gibbs free energy) at 25 °C for the given reaction:

25 (s, rhombic) + 3/2 \(O_2\)(g) → \(2SO_3\)(g)

We can use the equation:

ΔG = ΔG° + RT ln(Q)

where:

ΔG is the standard Gibbs free energy change

ΔG° is the standard Gibbs free energy change under standard conditions

R is the gas constant (8.314 J/(mol·K) or 0.008314 kJ/(mol·K))

T is the temperature in Kelvin (25 °C = 298 K)

Q is the reaction quotient, which is the ratio of the concentrations of the products to the concentrations of the reactants at a given point during the reaction.

Given that ΔG° is -370.4 kJ/mol, we can plug the values into the equation:

ΔG = -370.4 kJ/mol + (0.008314 kJ/(mol·K) * 298 K) * ln(Q)

Now, we need to determine the value of Q. Since all reactants and products are in their standard states, Q = 1, as their concentrations are taken to be 1.

ΔG = -370.4 kJ/mol + (0.008314 kJ/(mol·K) * 298 K) * ln(1)

Since ln(1) = 0, the term (0.008314 kJ/(mol·K) * 298 K) * ln(1) becomes 0.

Therefore, the value of ΔG at 25 °C for the given reaction is:

ΔG = -370.4 kJ/mol + 0 = -370.4 kJ/mol

So, the correct answer is -370.4 kJ/mol.

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the possible quantum numbers (ordered n, ℓ, mℓ ) are:Option B.5, 3, -3 and Option C. 4, 3, -2

The quantum numbers n, ℓ, mℓ represent respectively the principal quantum number, the orbital angular momentum quantum number and the magnetic quantum number.

These are the three most important quantum numbers. T

here is another quantum number called the spin quantum number, denoted by ms.

Let's see which of the given quantum number sets is possible.2, 1, 3 is not possible because for ℓ = 1, mℓ can only be -1, 0, or 1. 5, 3, -3 is possible.4, 3, -2 is possible. -4, 3, 1 is not possible.

For any value of ℓ, mℓ must be between -ℓ and +ℓ. e. 2, 1, -2 is not possible because for ℓ = 1, mℓ can only be -1, 0, or 1. f. 3, 2, 2 is not possible because for ℓ = 2, mℓ can only be -2, -1, 0, +1, or +2. g. 3, 3, 1 is not possible because for any value of ℓ, mℓ must be between -ℓ and +ℓ.

Therefore, the possible quantum numbers (ordered n, ℓ, mℓ ) are:5, 3, -34, 3, -2

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ANSWER: 3020.8 moleclues of water (h20)           Explanation I did the math and the quiz

By monitoring the temperature at just above the iodine melting point and observing the melt, it is possible to get liquid iodine at atmospheric pressure.

Iodine is a chemical element that has the symbol I and atomic number 53. If the temperature is 113.7 oC or higher, liquid iodine will be present at the bottom, though, as Mike points out, it may be challenging to see it through the intensely colored iodine vapour. The heaviest of the stable halogens, it is a semi-lustrous, non-metallic solid under normal conditions. It melts at 114 °C (237 °F) to form a deep violet liquid and boils at 184 °C (363 °F) to form a violet gas.

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Answer:

B.

Explanation:

Can you give me brainliest? i need to rank up

Answer:

2nd One is correct

Answer:

During the early Paleozoic Era, the Earth's surface was very different from what it is today. The continents were arranged differently, forming one large supercontinent called Pangea. This landmass was surrounded by a single large ocean called Panthalassa. The climate was much warmer and wetter than it is today, with no ice caps at the poles.

The first land plants, known as bryophytes, appeared during the early Silurian Period, around 430 million years ago. These plants were small and simple, lacking roots and vascular tissue. They grew in damp environments, such as along the edges of lakes and streams. They were important in the development of soils and in the colonization of land by other organisms, such as insects and other arthropods.

0.26L is the volume of sodium hydroxide, NaOH, needed for the reaction to occur.

A measurement of three-dimensional space is volume. Several imperial or US customary units, as well as SI-derived units (such the cubic meter and liter), are frequently used to quantify it quantitatively (such as the gallon, quart, cubic inch).

Volume and length (cubed) have a symbiotic relationship. The capacity of such a container is typically regarded to be its volume.

Molarity₁×Volume₁=Molarity₂×Volume₂

0.95 × 0.42=1.5×Volume₂

Volume₂=(0.95 × 0.42)/1.5

             =0.26L

Therefore, 0.26L is the volume of sodium hydroxide, NaOH, needed for the reaction to occur.

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Dry ice are the molecule which represent molecular solid. Hence option c is correct.

Molecules are defined as  the lowest identifiable unit into which a pure material can be divided while maintaining its chemical makeup and attributes is made up of two or more atoms. When two or more atoms come together and form bonds with one another, a molecule is created. Each atom shares an electron when a bond is formed between them. A molecule is created as a result of a covalent bond.

Molecular solid are defined as composed of atoms or molecules joined by hydrogen bonds, London dispersion forces, and dipole-dipole forces. Solids made of molecules and held together by van der Waals forces are referred to as molecular solids. Examples include carbon dioxide, hydrogen, etc. Crystalline solids include ZnS. The ionic solid MgO is. Diamond is organized in a network.

Thus, dry ice are the molecule which represent molecular solid. Hence option c is correct.

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Your question is incomplete,  but probably your complete question was

Which of the following is an example of molecular solid?

a. Zinc sulphide

b. Magnesium oxide

c. Dry ice

d. Diamond

The mass of sodium nitrate that must be added to saturate the solution at 50°C would be 14 grams.

The solubility of a compound typically increases with temperature, so more solute can dissolve in the solvent as the temperature increases. To calculate how much sodium nitrate needs to be added to saturate the solution at 50°C, we can use the solubility data and the fact that the amount of solute that can dissolve in a given amount of solvent is dependent on the temperature.

First, let's calculate the solubility of sodium nitrate at 50°C. According to the solubility curve for NaNO3, the solubility of NaNO3 at 35°C is 88 g/100 mL, and at 50°C it is approximately 114 g/100 mL. Therefore, we know that a saturated solution at 50°C can dissolve up to 114 g of NaNO3 per 100 mL of water.

Since the original solution contains 100 g of NaNO3 in 100 mL of water at 35°C, we know that it is already saturated at that temperature. To calculate how much more NaNO3 we need to add to saturate the solution at 50°C, we can use the following equation:

mass of NaNO3 added = (desired amount of NaNO3) - (initial amount of NaNO3)

mass of NaNO3 added = (114 g/100 mL × 100 mL) - (100 g/100 mL × 100 mL)

mass of NaNO3 added = 14 g

Therefore, we need to add 14 grams of sodium nitrate to the solution at 50°C to saturate it.

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Answer:

answer my Question please

Answer:

2 Al(s) + 3 CuSO₄(aq) ⇒ 3 Cu(s) + Al₂(SO₄)₃(aq)

Explanation:

Let's consider the single displacement reaction of Al(s) with CuSO₄(aq). Copper has a higher reduction potential than aluminum, so aluminum will take the place of copper to form aluminum sulfate and metallic copper. The corresponding balanced chemical equation is:

2 Al(s) + 3 CuSO₄(aq) ⇒ 3 Cu(s) + Al₂(SO₄)₃(aq)

The chemical equation is 2 Al(s) + 3 CuSO₄(aq) ⇒ 3 Cu(s) + Al₂(SO₄)₃(aq)

here we considered the single displacement reaction of Al(s) with CuSO₄(aq). Also, Copper contained a higher reduction potential as compared to aluminum, due to this aluminum will take the place of copper to create aluminum sulfate and metallic copper. So the above should be the balance chemical equation.

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Phosphorus in and example of a(n).

A. Compound

Phosphorus in and example of a(n)

a. compound

b. mixture

C. element

d. solution

A. Compound

The mass of the gold with the density of 19.3 g/cm³ with dimensions of 10.0 in x 4.00 in x 3.00 in is 38,011.48 grams.

The mass of a substance can be calculated from the density by using the following expression;

Density = mass ÷ volume

According to this question, the dimensions of gold is given as 10.0 in x 4.00 in x 3.00 in. The density of gold is 19.3 g/cm³.

Volume of gold = 10 × 4 × 3 = 120in³

120in³ is equivalent to 1966.45cm³

19.3g/cm³ = mass ÷ 1966.45cm³

mass = 19.3 × 1966.45

mass = 38,011.48 grams.

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Answer:

It predicts whether or not a reaction will be spontaneous.

Explanation:

The equation;

∆G= ∆H - T∆S enables us to obtain the Gibbs free energy of a chemical process.

The Gibbs free energy value tells us whether a chemical process will be spontaneous or not.

When;

∆G>0 the reaction is not spontaneous

∆G=0 the reaction is at equilibrium

∆G<0 the reaction is spontaneous