which of the following is a typical characteristic of acids? select the correct answer below: an acid donates a proton an acid donates an electron an acid accepts a proton an acid accepts an electron

Answer:soild

Explanation:

Answer:

I think that it is a solid that has the greatest density

A white powdery chemical sedimentary rock that does not react to hydrochloric acid could be chalk or gypsum.

Chalk is a soft, porous form of limestone composed primarily of the mineral calcite (calcium carbonate).

It is commonly used for writing on blackboards or as a dietary supplement. Gypsum, on the other hand, is composed of calcium sulfate dihydrate and is often used in construction materials such as drywall.

When hydrochloric acid is applied to gypsum, there is no significant effervescence or bubbling, indicating the absence of a chemical reaction.

This distinctive property allows geologists and mineralogists to identify gypsum in various geological formations and helps differentiate it from other minerals that may react with acid.

Both chalk and gypsum are relatively soft and can be easily scratched with a fingernail. They do not react with hydrochloric acid, as their main constituent minerals are not soluble in acid.

know more about hydrochloric acid here

https://brainly.com/question/24784580#

#SPJ11

Answer:

The element belongs to group 15 of the present periodic table

Explanation:

Isotopes have the same proton number, what differs is that they have different number of neutrons.

Now since the half-sum of their neutrons is 19, the total number of neutrons would be 19 * 2 = 38 neutrons.

Also, their masses add up to be 68, since the total mass equals sum of neutrons and sum of protons, this means that the total number of protons is 68-38 = 30

Since this is equal in both isotopes, this means that the proton number of the element is 30/2 = 15

The atomic number is the number of protons in the nucleus of an atom. Since the atomic number is 15, this element is phosphorus and it belongs to group 15 of the present periodic table

Let's see

\(\\ \rm\Rrightarrow C_{12}H_{22}O_{11}\)

\(\\ \rm\Rrightarrow 12(12)+22(1)+11(16)\)

\(\\ \rm\Rrightarrow 144+22+176\)

\(\\ \rm\Rrightarrow 166+176\)

\(\\ \rm\Rrightarrow 342g/mol\)

Answer:

it can be increased by the number of atoms on each side

The partial pressure of carbon dioxide gas in the collected sample is 709 mmHg, and the fraction of the mixture that is CO2 is 0.974 or about 97.4%.

The method used to find the density of carbon dioxide gas is by collecting the gas by displacing water in a bottle.

To find the partial pressure of carbon dioxide gas in the collected sample, we need to subtract the partial pressure of water vapor from the total pressure of the mixture:

Partial pressure of CO2 = Total pressure - Partial pressure of water vapor

Partial pressure of CO2 = 730 mmHg - 21 mmHg

Partial pressure of CO2 = 709 mmHg

To find the fraction of the mixture that is CO2, we need to use the ideal gas law, which states:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature in Kelvin.

Assuming that the volume of the sample is constant and that the temperature is constant at room temperature (around 298 K), we can simplify the ideal gas law to:

P = nRT/V

Since the pressure of the mixture is equal to the sum of the partial pressures of the gases, we can write:

P(total) = P(CO2) + P(H2O)

Solving for n/V for carbon dioxide, we get:

n/V(CO2) = P(CO2)/RT

Substituting the values we have

n/V(CO2) = (709 mmHg)/(0.0821 L atm/K mol x 298 K)

n/V(CO2) = 0.0285 mol/L

Now, we need to find the total number of moles in the sample. We can do this by using the ideal gas law again, this time for water vapor:

P(H2O) = n(H2O)RT/V

Solving for n/V(H2O), we get:

n/V(H2O) = P(H2O)/(RT)

Substituting the values we have:

n/V(H2O) = (21 mmHg)/(0.0821 L atm/K mol x 298 K)

n/V(H2O) = 0.00083 mol/L

Since the volume of the sample is constant, the total number of moles is equal to the sum of the number of moles of CO2 and water vapor:

n(total) = n(CO2) + n(H2O)

Substituting the values we have:

n(total) = (0.0285 mol/L)(V) + (0.00083 mol/L)(V)

n(total) = (0.0293 mol/L)(V)

The fraction of the mixture that is CO2 is:

Fraction CO2 = n(CO2)/n(total)

Fraction CO2 = (0.0285 mol/L)(V)/(0.0293 mol/L)(V)

Fraction CO2 = 0.974

Learn more about partial pressure here:

https://brainly.com/question/13199169

#SPJ1

The number of moles the sample of sodium hydroxide (NaOH) will contain is 4 moles.

Moles of any substance will be calculated by using the below formula:
n = W/M, where

W = given mass

M = molar mass

Given mass of NaOH = 160 g

Given molar mass of NaOH = 40 g/mole

On putting these values on the above equation, we get

n = 160 / 40 = 4 moles

Hence, required moles is 4 moles.

To know more about moles, visit the below link:
https://brainly.com/question/15303663

Answer:

A). 4.000

Explanation:

Poopy fart fart

True; "ionizing radiation is more effective than nonionizing radiation in killing microbes".

Ionizing radiation, including nuclear radiation, consists of subatomic particles or electromagnetic waves that have sufficient energy to ionize atoms or molecules by detaching electrons from them.

Non-ionizing radiation refers to any type of electromagnetic radiation that does not carry enough energy per quantum to ionize atoms or molecules—that is, to completely remove an electron from an atom or molecule.

Thus, based on the definition above, we can conclude that the statement is true; "ionizing radiation is more effective than nonionizing radiation in killing microbes".

Learn more about ionizing radiation here: https://brainly.com/question/17095776

#SPJ4

The complete question is below:

True/false, ionizing radiation is more effective than nonionizing radiation in killing microbes.

Answer:

your answer is 769

Explanation:

i took the test lol

The pressure of a given amount of gas held at constant volume is directly proportional to the Kelvin temperature, according to Gay Lussac's Law. When you heat a gas, the molecules gain energy and move faster. This means more impacts on the container's walls and an increase in pressure.

The temperature  at 565 torr = 276.5 K  

The temperature = \(\frac{565 X 318.15}{650}\) =276.5 K  

To learn more about : Gas laws

Ref :  https://brainly.com/question/15990970

#SPJ2

Answer:

You are right!!! Gj!

Explanation:

Answer:

you are right

Explanation:

see from google

The vapor pressure of water decreases when two moles of aluminum chloride are dissolved in two liters of water.

This is due to the fact that the non-volatile aluminum and chloride ions take up some of the volume of the system, reducing the volume of the volatile solvent particles that produce vapor pressure. When solute particles are dissolved in a solution, the number of solvent molecules at the surface is reduced. As a result, the vapor pressure of the solvent is lowered, and the boiling point of the solvent is raised. The solution has a higher boiling point than the solvent since the solution requires more energy to reach its boiling point. Thus, the addition of solute to a solvent raises its boiling point. Vapor pressure is a term used to describe the tendency of a liquid to evaporate. The pressure of a vapor in equilibrium with its liquid or solid phase at a given temperature is known as vapor pressure. The vapor pressure of a liquid is proportional to its temperature. The vapor pressure of water, for example, increases as the temperature rises. When a solute is added to a solvent, the vapor pressure of the solvent is lowered.

This occurs because the non-volatile solute molecules take up some of the space in the solution, decreasing the number of solvent molecules at the surface. As a result, the number of solvent molecules that can evaporate into the vapor phase decreases. The vapor pressure of the solvent is lowered as a result. Thus, the vapor pressure of water decreases when two moles of aluminum chloride are dissolved in two liters of water. When a solute is dissolved in a solvent, the boiling point of the solvent increases. The solution has a higher boiling point than the solvent since the solution requires more energy to reach its boiling point. Thus, the addition of solute to a solvent raises its boiling point. Therefore, it is concluded that the vapor pressure of water decreases when two moles of aluminum chloride are dissolved in two liters of water. This is due to the fact that the non-volatile aluminum and chloride ions take up some of the volume of the system, reducing the volume of the volatile solvent particles that produce vapor pressure.

When solute particles are dissolved in a solution, the number of solvent molecules at the surface is reduced. As a result, the vapor pressure of the solvent is lowered, and the boiling point of the solvent is raised. The solution has a higher boiling point than the solvent since the solution requires more energy to reach its boiling point. Thus, the addition of solute to a solvent raises its boiling point.

To know more vapor pressure visit:

brainly.com/question/29640321

#SPJ11

Answer: ok so you have to do is 2+11

Explanation:

Answer:

occur gradually over millions of years.

Answer:

Las fuentes de luz primarias son aquellas que emiten la luz que producen. Por ejemplo: la luz de Sol, un relámpago, la de una vela,...

A su vez las fuentes primarias las podemos clasificar en: fuentes naturales y fuentes artificiales

Explanation:

16 mL of 0.610 M NaOH solution is required to neutralize 20.0 mL of 0.245 M H2SO4 solution.

Chemical reaction between acid and a base that results in the formation of a salt and water is called neutralization.

2 NaOH+ H₂SO₄ → Na₂SO₄ + 2 H₂O

Number of moles of  H₂SO₄ in 20.0 mL of a 0.245 M solution is: n( H₂SO₄) = M × V = 0.245 mol/L × 20.0 mL / 1000 mL/L = 0.0049 mol

n(NaOH) = 2 × n( H₂SO₄) = 2 × 0.0049 mol = 0.0098 mol

V(NaOH) = n(NaOH) / M(NaOH) = 0.0098 mol / 0.610 mol/L = 0.016 m³ = 16 mL

Therefore, we need 16 mL of the 0.610 M NaOH solution to neutralize 20.0 mL of the 0.245 M  H₂SO₄ solution.

To know more about neutralization, refer

https://brainly.com/question/23008798

#SPJ1

The expected blood gas values for this patient at the time of admission of patient is option E. pH 7.51; PaCO₂ = 20 mm Hg; [HCO₃]⁻ = 24 mEq/L; Anion Gap = 12 mEq/L

A 20-year-old woman presents to the Emergency Department with persistent symptoms of palpitations, dizziness, sweating, and paresthesia. She has a history suggestive of an anxiety disorder.

To assess her condition, blood gases and electrolytes are ordered, and a positron emission tomography (PET) scan is performed. The PET scan reveals increased perfusion in the anterior portion of each temporal lobe. Based on these findings, the doctor prescribes a benzodiazepine medication.

The expected blood gas values at the time of admission can be determined by analyzing the given options:

A. pH 7.51; PaCO₂ = 49 mm Hg; [HCO₃]⁻ = 38 mEq/L; Anion Gap = 12 mEq/L

B. pH 7.44; PaCO₂ = 25 mm Hg; [HCO₃]⁻ = 16 mEq/L; Anion Gap = 12 mEq/L

C. pH 7.28; PaCO₂ = 60 mm Hg; [HCO₃]⁻ = 26 mEq/L; Anion Gap = 12 mEq/L

D. pH 7.28; PaCO₂ = 20 mm Hg; [HCO₃]⁻ = 16 mEq/L; Anion Gap = 25 mEq/L

E. pH 7.51; PaCO₂ = 20 mm Hg; [HCO₃]⁻ = 24 mEq/L; Anion Gap = 12 mEq/L

By evaluating the options, the most appropriate choice is:

E. pH 7.51; PaCO₂ = 20 mm Hg; [HCO₃]⁻ = 24 mEq/L; Anion Gap = 12 mEq/L

This option presents a higher pH (alkalosis) and a decreased PaCO₂ (respiratory alkalosis), which could be consistent with the patient's symptoms of hyperventilation due to anxiety. The [HCO₃]⁻ level within the normal range and a normal anion gap further support this interpretation.

In summary, the expected blood gas values for this patient at the time of admission are a higher pH, decreased PaCO₂, normal [HCO₃]⁻, and a normal anion gap, indicative of respiratory alkalosis likely caused by hyperventilation related to her anxiety disorder.

To know more about Blood gas values here: https://brainly.com/question/27826544

#SPJ11

Answer: 3

Explanation:

The standard free-energy change at 25 ∘C for the given reaction, Mg(s)+Fe₂+(aq)→Mg₂+(aq)+Fe(s) can be calculated using the equation:ΔG∘ = ΣnΔGf∘ (products) − ΣnΔGf∘ (reactants)where ΔGf∘ is the standard free energy of formation of the compound, n is the stoichiometric coefficient of each compound in the reaction.

The values of ΔGf∘ for the given reaction are:

Mg₂+ (aq):−467.2 kJ/mol Fe(s): 0 kJ/mol Fe₂+(aq): −237.2 kJ/mol Mg(s): 0 kJ/molΔG∘ =

ΣnΔGf∘ (products) − ΣnΔGf∘ (reactants)ΔG∘ =

[ΔGf∘ (Mg₂+ (aq)) + ΔGf∘ (Fe(s))] - [ΔGf∘ (Mg(s)) + ΔGf∘ (Fe₂+(aq))]ΔG∘ =

[−467.2 kJ/mol + 0 kJ/mol] - [0 kJ/mol + (−237.2 kJ/mol)]ΔG∘ =

−230.0 kJ/mol At 25 ∘C, the standard free-energy change for the given reaction is −230.0 kJ/mol. The units of ΔG∘ are kilojoules per mole (kJ/mol). Hence, the answer is -230.0 kJ/mol.

To know more about stoichiometric coefficient refer here: https://brainly.com/question/32088573#

#SPJ11

a. The smell of burnt food travels through the houses- Because the particles are really heated up and have a lot of kinetic energy, which causes them to move quickly, the stench of burnt food permeates the entire house.

b. When two solids are placed on top of each other, they do not mix-  Because they have clear boundaries and a definite shape, two solids stacked on top of one another do not mix.

c. Pumping up your bike tires gives a smooth ride- Because the tire's air pressure is what maintains it in place. Even though the tires appear to be firm when you push on them with your palm, they actually have a lot of give as the vehicle's weight shifts and it bounces around the road.

d. Smokers can cause lung damage in other people- The heart and blood arteries are impacted by secondhand smoke, which raises the risk of suffering a heart attack. The risk of developing and passing away from heart disease rises when people are exposed to secondhand smoke.

e. Heating gas in a closed container will increase its pressure- When gases in containers are heated, the average speed of their molecules increases. They consequently strike the container walls more frequently, more forcefully, and with greater force. Therefore, when the gas's temperature rises, it is under more pressure.

f. Poisonous gasses from a factory chimney can affect a large area- manufacturing chimney smoke, and power plant emissions all contribute to air pollution. Acids are created when poisonous gases, like sulfur dioxide, combine with rain and mist. A large area of plants are killed when acid rain occurs.

To learn more about characteristics of particles refer- https://brainly.com/question/16982523

#SPJ9

Answer:

1.8 * 10^24 atoms

Explanation:

n = M(B) / m = 10.8 / 3.60 = 3 mol

N = n * Na = 3 * 6*10^23 = 1.8 * 10^24 atoms

Answer: 78.9 moles

Explanation:

4.75 x 10^25 molecules (1 mole / 6.02 x 10^23 molecules) = 78.9 moles :)

The heat of reaction (ΔH) for the given reaction is 180.4 kJ/mol. To calculate the heat of reaction (ΔH) for the given reaction:

CCl₄(g) + H₂O(g) -> CHCl₃(g) + HCl(g)

You would need the standard enthalpies of formation for each compound involved in the reaction. The standard enthalpy of formation (ΔHf) is the enthalpy change when one mole of a compound is formed from its elements in their standard states.

Here are the standard enthalpies of formation for the compounds involved:

ΔHf[CCl₄(g)] = -135.5 kJ/mol

ΔHf[H₂O(g)] = -241.8 kJ/mol

ΔHf[CHCl₃(g)] = -104.7 kJ/mol

ΔHf[HCl(g)] = -92.3 kJ/mol

To calculate ΔH for the reaction, you need to sum up the enthalpies of formation of the products and subtract the sum of the enthalpies of formation of the reactants:

ΔH = ΣΔHf(products) - ΣΔHf(reactants)

ΔH = [ΔHf[CHCl₃(g)] + ΔHf[HCl(g)]] - [ΔHf[CCl₄(g)] + ΔHf[H₂O(g)]]

ΔH = [(-104.7 kJ/mol) + (-92.3 kJ/mol)] - [(-135.5 kJ/mol) + (-241.8 kJ/mol)]

ΔH = -196.9 kJ/mol - (-377.3 kJ/mol)

ΔH = 180.4 kJ/mol

Therefore, the heat of reaction (ΔH) for the given reaction is 180.4 kJ/mol.

To know more about enthalpy:

https://brainly.com/question/29145818

#SPJ4

Answer:

The answer is spontaneous.

Answer:

All chemical reactions occur at different rates

A piece of sodium metal is dropped into a calorimeter filled with water, hydrogen gas evolves. The temperature of the mixture rises because As an intensive physical property.

Calorimeter, device for measuring the heat developed throughout a mechanical, electric, or chemical reaction and for calculating the heat ability of substances. Calorimeters have been designed in splendid range.

The frame at better temperature releases heat while the body at lower temperature absorbs heat. The principle of calorimetry shows the regulation of conservation energy, i.e. the overall warmness lost through the new frame is same to the full warmth won by way of the cold body.

The primary ice calorimeters have been built based on Joseph Black's idea of latent warmness, introduced in 1761. Antoine Lavoisier coined the time period calorimeter in 1780 to explain the apparatus he used to measure warmth from guinea pig breathing used to melt snow.

Learn more about calorimeters  here:

https://brainly.com/question/1407669

#SPJ4

Answer:

on it iis renewable energy it is independent

Your answer is A. What is the composition of air?

The question that can be answered by science is What is the composition of air? The correct option is A.

Science is a subject that deals with the components of the earth. It has a wide variety of components of earth. Like planets and meteorites. Plants, animals, and other creatures. Nature, trees, and other abiotic factors.

Science gives answers to the secrets of the earth, and they unravel the mysteries of nature and the earth. They solve the mysteries of air, water, and other natural processes.

So the composition of air can be told by science. The air is made up of a mixture of gases. Air is present in the atmosphere. It is needed for breathing, and it is an important component of life because it provides oxygen to the body.

The correct option is A. What is the composition of air?

To learn more about science, refer to the below link:

https://brainly.com/question/12842883

#SPJ5