if 0.246 g of mg are reacted with 10.0 ml of 3.00 m hcl, how many moles of h2 should be produced theoretically?

Answer:

\({ \boxed{ \mathfrak{ \: answer : \: { \bf{v = f \lambda}} }}}\)

Answer:

B) Rubbing alcohol

Explanation:

It is a solution

Answer:follow these steps Identify the given quantity in the problem.

Identify the wanted quantity in the problem.

Establish the unit path from the given quantity to the wanted quantity using equivalents as conversion factors.

Set up the conversion factors to permit cancellation of unwanted units

Explanation:

other things that may helps

Set up each problem by writing down what you need to find with a question mark. Then set it equal to the information that you are given. The problem is solved by multiplying the given data and its units by the appropriate unit factors so that only the desired units are present at the end.

Answer:

I will answer the first one for you: 5.33

Explanation:

You can use dimensional analysis to do conversions in almost any field of math. For the first problem:

\(\frac{16 feet}{} |\frac{1 meter}{3 feet} = about 5.33\)

The main reservoirs of the carbon cycle are the atmosphere, oceans, land (including vegetation and soils), and fossil fuels. In these reservoirs, carbon exists in both inorganic and organic forms.

The inorganic carbon cycle involves the exchange of carbon dioxide (CO2) between the atmosphere and oceans through processes like photosynthesis and respiration.

Organic carbon, on the other hand, is found in living organisms, dead organic matter, and soil organic matter. It is cycled through processes such as decomposition and consumption by organisms. The interactions between the inorganic and organic carbon cycles occur primarily in the biosphere, where photosynthesis converts inorganic carbon into organic carbon compounds. While inorganic carbon is primarily in the form of CO2, organic carbon is present in complex organic molecules. Both forms of carbon play crucial roles in energy transfer, nutrient cycling, and climate regulation.

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Answer:

4

Explanation: it's a carbon atom right....soo it'll form 4 bonds(single)

An atom can form 4 single covalent bonds is carbon with two electron shell.

The bonds are defined as a strong bond that binds atoms, ions, or molecules together and promotes the production of molecules.

There are three types of bonds.

Covalent bonds are defined as the bond formed by sharing of electrons with each other.

Covalent bonding is a stable equilibrium of the attractive and repulsive forces between two atoms that occurs when they share electrons. Bonding pairs or sharing pairs are other names for these electron pairs.

It can also be defined as a type of chemical link where atoms share electrons to create electron pairs.

Covalent bonds  has low melting point, boiling point, enthalpy of fusion and enthalpy of vaporization.

Thus, an atom can form 4 single covalent bonds is carbon with two electron shell.

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Answer:

Venus

Explanation:

From the sun outwards is   Mercury   Venus  Earth  and then Mars

The appropriate definition that applies to the compound in red (F-(aq)) is Bronsted-Lowry base.

Based on the given chemical equation F-(aq) + HSO4-(aq) → HF(aq) + SO42-(aq), the compound in red is F-(aq) (fluoride ion).

In this context, F-(aq) acts as a base by accepting a proton (H+) from the HSO4-(aq) ion, forming HF(aq) and SO42-(aq).

Therefore, the appropriate definition that applies to the compound in red (F-(aq)) is Bronsted-Lowry base.

In the given chemical equation F-(aq) + HSO4-(aq) → HF(aq) + SO42-(aq), the compound highlighted in red is F-(aq), which represents the fluoride ion.

In this specific context, F-(aq) demonstrates its characteristics as a base by accepting a proton (H+) from the HSO4-(aq) ion. This proton transfer reaction results in the formation of HF(aq) and SO42-(aq).

Therefore, based on its behavior in the equation, the appropriate definition for the compound in question, F-(aq), is that of a Bronsted-Lowry base.

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n-Butane is transformed to iso-butane at excessive temperatures withinside the presence of an acid. The volume of isomerization is decided via way of means of calculating the distinction withinside the wide variety of moles of additives all through the response.

n-Butane is transformed to isobutane in a non-stop isomerization reactor that operates isothermally at 142°C. The feed to the reactor consists of ninety three mole% n-butane, 5% isobutene, and 2% HCl at 142°C, and a 36% conversion of n-butane is achieved. Taking a foundation of one mol of feed gas, calculate the moles of every aspect of the feed and product combos and the volume of response, ξ (mol).

Calculate the same old warmness of the isomerization response (kJ/mol). Then, taking the feed and product species at 25 °C as references, put together an inlet-outlet enthalpy desk and calculate and fill withinside the aspect amounts (mol) and particular enthalpies (kJ/mol). (See Ex 9.5-1 for your textbook.)

Calculate the desired fee of warmth switch (kJ) to or from the reactor (nation which it is). Then decide the desired warmness switch fee (kW) for a reactor feed of 325 mol/h. Use your calculated consequences to decide the warmth of the isomerization response at 149 °C, (142 °C)(kJ/mol).

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Answer:

14.8 g

Explanation:

step 1 You first have to convert the cm^3 to dm^3 by dividing the volume by 1000 then find the number of mols for Hydrogen gas

from there you can use the of moles for hydrogen to find the moles of the metal step 2

then step 3 you multiply the number of by The Mr or Fr giving you your mass

The following compounds can be ranked in the order of increasing boiling point as (a) < (b) < (c).

The boiling point depends upon the intermolecular forces present in the molecule. In general, the stronger the intermolecular forces, the higher the boiling point. Here, we are going to rank the following compounds in order of increasing boiling point. Rank the following compounds in order of increasing boiling point (a) CH3CH2CH2OCH2CH3CH3CH2CH2OCH2CH3 (b) (CH3CH2)2CHOH(CH3CH2)2CHOH (c) (CH3)2CHCH2CH2OH.

The compounds can be ranked in order of increasing boiling points as follows: (a) CH3CH2CH2OCH2CH3CH3CH2CH2OCH2CH3, there are two ether groups in the molecule, so the only intermolecular force present is London Dispersion force, it is the weakest of all intermolecular forces. Hence, the boiling point is the lowest. (b) (CH3CH2)2CHOH(CH3CH2)2CHOH, this molecule contains hydrogen bonding which is a stronger intermolecular force than London dispersion force. So, the boiling point is higher than that of (a). (c) (CH3)2CHCH2CH2OH, this molecule has both hydrogen bonding and London Dispersion forces present. Hence, the boiling point is the highest among all. The compounds can be ranked in the order of increasing boiling point as (a) < (b) < (c).

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Lungfish walk on land to suck in atmospheric air.

The Dipnoi are a group that lives exclusively in freshwater environments. Its main feature is breathing through a structure that works like a primitive lung. This structure is highly vascularized and is linked to the pharynx.

With this information, we can conclude that the lungfish leave the water to breathe atmospheric air.

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Answer: C

Explanation:

your well wisher

To estimate the likelihood of a catastrophic wildfire, meteorologists utilize meteorological data. To forecast the likelihood of wildfires under several possible climatic scenarios, scientists develop computer models. Scientists forecast where and when wildfires are most likely to occur using various estimates of temperature and precipitation.

Other widely utilized technologies by many authorities and sectors to monitor and identify wildfire outbreaks include terrestrial, aerial, and satellite remote sensing systems as well as IoT-based solutions. To actively search the terrain for fresh flames, terrestrial camera systems have been implemented in numerous areas.

Even though it is not always feasible to identify the particular cause or spark of a fire occurrence, wildfire risk may be roughly calculated by comprehending how climate, geography, weather, and land cover affect fire behavior and the possibility of a fire spreading.

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Answer:

P2 = 1.94 kPa

Explanation:

Given the following data;

Initial pressure = 2.36 kPa

Initial temperature = 62°C

Standard temperature = 0°C

Conversion:

Kelvin = 273 + C

Kelvin = 273 + 62 = 335 K

Kelvin = 273 + 0 = 273 K

To find the final pressure, we would use Gay Lussac's law;

Gay Lussac states that when the volume of an ideal gas is kept constant, the pressure of the gas is directly proportional to the absolute temperature of the gas.

Mathematically, Gay Lussac's law is given by;

\( PT = K\)

\( \frac{P1}{T1} = \frac{P2}{T2}\)

Making P2 as the subject formula, we have;

\( P_{2}= \frac{P1}{T1} * T_{2}\)

\( P_{2}= \frac{2.36}{335} * 273 \)

\( P_{2}= 0.0071 * 273 \)

P2 = 1.94 kPa

Answer:

Diagram B shows the correct arrangement of electrons in the product.

Magnesium reacts with fluorine to form magnesium fluoride two electrons of magnesium are transferred to the 2 atoms of fluorine and fluorine is the most electronegative element of the periodic table. Option C is correct.

Electronegativity is the tendency or power of an atom to attract the electrons from the metals they are mostly nonmetals and want to complete their octave too.

The most electronegative elements of the periodic table are oxygen, nitrogen, and fluorine, as they are always willing to complete the octave, and fluorine will take electrons from magnesium.

Therefore, Option C is correct if the 2 atoms of fluorine and fluorine are the most electronegative element of the periodic table. Magnesium reacts with fluorine to form magnesium fluoride two electrons of magnesium are transferred.

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Step 1:

ok we have to use the formula PV=nRT

p=Pressure (must be converted to atm)= 780 mmHg

1 amt= 760 mmHg use this as a conversion factor

780 mmHg (1 atm/760 mmHg)= 1.026

V= Volume= 5.00 mL = o.5 L

n=number of moles which we have to find first

R= 0.0821

T(convert to Kelvins by adding 273.15 to the celsius temperature)= 135 C + 273.15= 408.15 k

Now plug in->

(1.026 atm)(o.5 L)= n(0.0821)(408.15 K)

(1.026 atm)(0.5 L)= n(33.509115)

(0.513)= n(33.509115)

n(number of moles)= 0.01532 mol

Now we have to convert to moles using Avagodro's number which states that 1 mol = 6.022 x 10^23 molecules or atoms

So 0.01532 mol (6.022 x 10^23 number of molesules)/ (1 mol) = 9.225704 x 10^21 = 9.226 x 10^21 colecules

Step 2

You must transfer pressure into pascals, 780 mm Hg = 103991 Pa

135*C = 408.15 k

then from the equation pV = nRt

n = pV / RT (T in Kelvins, V in M^3)

n = 103991 x 500 x 10^-6 / (8.314 x 408.15)= 0.015322 moles of N2

1 mol of everything is 6.022 x 10^23 particles, so 0.15322 moles is 0.15322 x 6.022 x 10^23 = 9.2269084 x 10^21 molecules

Explanation:

Hope this helps :)

Answer:

protons- 10

electrons- 10

neutrons- 10

Explanation:

no of protons/ electrons = atomic number

no of neutrons = atomic mass - atomic number

Answer:

Atoms are the smallest particle that make up living both living and non living things, they are made up of subatomic particles; protons, neutrons and electrons. Of these the electrons protons and neutrons are in the nucleus and the protons electrons orbit around the nucleus. Of the subatomic particles, the electrons have the largest smallest mass and are negatively charged, the neutrons (negative charge) (no charge) and protons (positively charged) both have a relative mass of 1. Atoms contain an equal number of protons and neutrons electrons, so carry no overall charge. An element is a substance made up of only two one type of atom. Elements can be found in the Periodic table of elements, they usually have two numbers next to the chemical symbol, the larger number is generally the atomic mass number, which represents the number of neutrons and the number of protons. The smaller number is the relative atomic mass atomic number which represents the number of electrons or neutrons protons. In order to calculate the number of neutrons, you minus the atomic number from the relative atomic mass.

Answer:

0.998 g/mL

Explanation:

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Answer:

C.

Explanation:

The toxins get released, as they poison and damage your body's cells. They also damage your lungs, heart, and veins that are inside the body.

hope this helps.

Answer:

B

Explanation:

The equilibrium constant for the reaction is 28.44.

The equilibrium constant expression for the reaction is:

\(Kc = [C][D]/([A]^2[B]^3)\)

where [A], [B], [C], and [D] are the molar concentrations of the respective species at equilibrium.

At the start of the reaction, the initial concentrations of A and B are:

[A] = 2.0 moles / 2.00 L = 1.0 M

[B] = 3.0 moles / 2.00 L = 1.5 M

At equilibrium, the concentration of A is 0.400 mol / 2.00 L = 0.200 M.

We can use these initial and equilibrium concentrations to find the equilibrium concentration of C and D:

[C] = [D] = (2.0 - 0.400) mol / 2.00 L = 0.800 M

Now we can substitute these concentrations into the equilibrium constant expression:

\(Kc = [C][D]/([A]^2[B]^3)\)

\(= (0.800 M)^2 / (0.200 M)^2 (1.5 M)^3\)

= 28.44

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Answer: Option: B - The warm air molecules inside the balloon lose energy to the cold air molecules, they move slower, and condense.

Explanation: Warm air molecules move faster than cold air molecules.

A catabolic pathway is a d) a set of reactions that release energy that can be used to drive cellular work

A catabolic pathway involves a series of reactions that break down complex molecules into simpler ones, releasing energy in the process. This energy is then utilized by the cell to perform various tasks. Option d correctly identifies a catabolic pathway as a set of reactions that release energy, which can be used to drive cellular work.

During catabolism, large molecules such as carbohydrates, proteins, and fats are broken down into smaller molecules like glucose, amino acids, and fatty acids.

These molecules are then further degraded through oxidation reactions, releasing energy in the form of ATP (adenosine triphosphate). ATP serves as the primary energy currency in cells, providing energy for various cellular processes.

By breaking down complex molecules and releasing energy, catabolic pathways enable cells to obtain the necessary energy to carry out essential functions like metabolism, growth, and movement. So d is correct option.

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Answer:because some have more radiation than others causing mutations and there for either decreasing or increasing the amount of ions

copper is a acidic metal in general therefor it will most likely erode faster than any other metal making it hard to determan the number of ions in general the metal will have basicly what I’m trying to say is there is no solid answer as many metals can change there ions for no given reason

Explanation:

CH4 is limiting reagent and H20 remains after the reaction.

A limiting reagent is a reactant that entirely consumes itself before any other reactants are used up in a chemical reaction, hence restricting the amount of product that may be created. It can be found by comparing the proportions of each component in the reaction and its stoichiometry. Once the limiting reagent has been determined, the amount of product that can be generated can be computed using the reaction's stoichiometry.

\(CH_4+2O_2- > CO_2+2H_2O\)  

number of moles of CH4= given mass/atomic mass

=> 16/16

so the number of moles of CH4 is 1

number of moles of O2 = 64/32

=2

so CH4 1 mole get vanished after the reaction and the gases like CO2 and O2 fly away so the limiting reagent is CH4  

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