How does a balanced chemical equation apply the law of conservation of mass?

Answer:

are too large

Explanation:

phenomena which are too large

Answer:

11.0 L

Explanation:

The equation for this reaction is given as;

2H2  +  O2  -->  2H2O

2 mol of H2 reacts with 1 mol of O2 to form 2 mol of H2O

At STP;

1 mol = 22.4 L

This means;

44.8 L of H2 reacts with 22.4 L of O2 to form 44.8 L of H2O

In this reaction, the limiting reactant is H2 as O2 is in excess.

The relationship between H2 and H2O;

44.8 L = 44.8 L

11.0 L would produce x

Solving for x;

x = 11 * 44.8 / 44.8

x = 11.0 L

Answer:

Curbing global carbon dioxide emissions has been a challenge, primarily because they are being driven higher by countries with low per capita emissions.

Explanation:

"just trust me bro"

Answer:

Radioisotopes, nuclear power process heat and non-stationary power reactors have essential uses across multiple sectors, including consumer products, food and agriculture, industry, medicine and scientific research, transport, and water resources and the environment.

Explanation:

careful it was copied dont want you to get in trouble for copy right :)

The characteristics of nuclear reactions allow to find some uses:

     Fission reactions:

  fusion reactions is development energy production

Nuclear reactions are reactions where atoms are transformed into other atoms, they can be of two types

Let's describe some of the uses of nuclear fission processes.

In conclusion the characteristics of nuclear reactions we can find the uses:

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Answer:

Bueno al principio pero empeorando con el paso del tiempo.

Explicación:

La calidad del aire es buena al inicio de la pandemia y hay menos infección en el aire pero con el paso del tiempo la infección se propaga a un ritmo más rápido y la calidad del aire se contamina con la infección que infecta a más personas. La pandemia reduce su intensidad cuando la gente sigue las reglas saludables que previenen la propagación de la pandemia en esa localidad por lo que podemos decir que la última semana de pandemia tiene menor número de pacientes.

When a metal is placed into an acid, a chemical reaction called a redox reaction occurs. In this process, the metal loses electrons (oxidation) and the acid gains electrons (reduction). This results in the formation of a salt and hydrogen gas is released. The general equation for this reaction is:

Metal + Acid → Salt + Hydrogen gas

For example, when zinc is placed into hydrochloric acid, the reaction is:

Zn(s) + 2HCl(aq) → ZnCl₂(aq) + H₂(g)

In this reaction, zinc is oxidized to form zinc chloride (ZnCl₂) while hydrogen ions (H⁺) in the hydrochloric acid are reduced to form hydrogen gas (H₂).

The release of hydrogen gas can be observed as bubbles forming in the solution. This process demonstrates the reactivity of metals with acids, which depends on the metal's position in the reactivity series.

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Answer:

Increase

Less/low number

Lessen

Explanation:

Increase > Increase in temperature cause increase in volume.

Less/low number > As volume increases the number of particles to be adjusted in the same space will be lesser than before.

Lessen> At constant pressure as increase in temperature cause increase in volume so the density will lessen due to increase in volume. Density equation is given below.

Density = mass /volume

If volume increases density will get lowered.

Answer: The stick model method

Answer:

D. The stick model method

Explanation:

Answer:

A. HCl

Explanation:

on the left hand side we have reactants.

hope it helps!

The product obtained when ethyne (also known as acetylene) is treated with KMnO4/H+ is two carboxylic acids.

when ethyne reacts with KMnO4 in the presence of an acid catalyst (H+), it undergoes oxidative cleavage, resulting in the formation of two carboxylic acids. The reaction involves the addition of two molecules of water across the triple bond of ethyne. The intermediate formed is glyoxal, which further undergoes oxidation to yield two molecules of carboxylic acids. The mechanism of the reaction starts with the addition of two molecules of water across the triple bond of ethyne, forming an enol intermediate. The enol tautomerizes to the corresponding ketone, which is further oxidized by KMnO4/H+ to form a carboxylic acid. This process is repeated for the second molecule of ethyne, resulting in the formation of two different carboxylic acids.

It's important to note that the specific carboxylic acids obtained will depend on the reaction conditions and the nature of the substituents on the ethyne molecule. The oxidation of the ketone intermediate can lead to the formation of various carboxylic acids, depending on the functional groups present. Therefore, without further information about the specific reactants and reaction conditions, it is not possible to determine the exact carboxylic acids formed in this reaction.

In summary, when ethyne is treated with KMnO4/H+, the main product obtained is two carboxylic acids. The reaction proceeds through the oxidative cleavage of the triple bond, resulting in the formation of two different carboxylic acids. The specific carboxylic acids produced will depend on the reaction conditions and the substituents present in the ethyne molecule.

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Conducting a literature review on corporate social responsibility (CSR) involves systematically exploring and analyzing existing scholarly works, research papers, articles, and relevant publications related to CSR.

1. Define your research question: Determine the specific aspect of CSR you want to explore. This will help focus your literature search and review.

2. Identify relevant databases: Use academic databases or specialized CSR databases to find scholarly articles, conference papers, and books related to CSR. Also, consider searching for reports from reputable organizations, such as the Global Reporting Initiative (GRI) or the United Nations Global Compact.

3. Select keywords and search terms: Develop a list of keywords related to CSR, such as "corporate social responsibility," "sustainable business," "stakeholder engagement," or "ethical practices." Combine these terms logically to perform effective searches.

4. Screen and select sources: Review the titles, abstracts, and keywords of the identified sources to assess their relevance to your research question. Select articles that align with your topic and research objectives. Additionally, consider consulting key review papers or seminal works in CSR to ensure you cover important foundational literature.

5. Organize your findings: Develop a system to categorize and organize your gathered literature. This could be based on themes, subtopics, or theoretical frameworks. Tools like reference management software (e.g., EndNote, Zotero) can help you keep track of your sources and create bibliographies.

6. Synthesize and write the review: Summarize the literature's main points, arguments, and empirical evidence. Identify common themes, trends, and patterns across studies. Critically evaluate the literature and highlight any gaps or areas for further investigation. Organize your findings logically and coherently, and write a comprehensive literature review.

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The correct answer is D) 378 g.The molar mass of AgCl (silver chloride) is 143.32 g/mol (Ag: 107.87 g/mol, Cl: 35.45 g/mol). Since the stoichiometric ratio is 1:1

To determine the maximum mass of AgCl that can precipitate, we need to identify the limiting reactant in the reaction between AgNO3 and NaCl. The reactant that is completely consumed in the reaction will determine the amount of product that can be formed.

Let's calculate the moles of each reactant:

Molar mass of AgNO3 (silver nitrate) = 107.87 g/mol (Ag: 107.87 g/mol, N: 14.01 g/mol, O: 16.00 g/mol)

Molar mass of NaCl (sodium chloride) = 58.44 g/mol (Na: 22.99 g/mol, Cl: 35.45 g/mol)

Moles of AgNO3 = mass / molar mass = 342 g / 107.87 g/mol ≈ 3.17 mol

Moles of NaCl = mass / molar mass = 154 g / 58.44 g/mol ≈ 2.64 mol

From the balanced chemical equation for the reaction:

AgNO3 + NaCl -> AgCl + NaNO3

We can see that 1 mole of AgNO3 reacts with 1 mole of NaCl to produce 1 mole of AgCl. Therefore, the stoichiometric ratio between AgNO3 and AgCl is 1:1.

Comparing the moles of AgNO3 and NaCl, we can see that NaCl is the limiting reactant because it has fewer moles than AgNO3. This means that all of the NaCl will react, and any excess AgNO3 will remain unreacted.

The molar mass of AgCl (silver chloride) is 143.32 g/mol (Ag: 107.87 g/mol, Cl: 35.45 g/mol). Since the stoichiometric ratio is 1:1 between AgNO3 and AgCl, the maximum mass of AgCl that can precipitate is:

Mass of AgCl = moles of NaCl x molar mass of AgCl

Mass of AgCl = 2.64 mol x 143.32 g/mol ≈ 378 g

Therefore, the correct answer is D) 378 g.

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The sludge generation process refers to the production of sewage treatment residue during wastewater treatment. Sludge contains solid and semi-solid materials that must be handled and disposed of properly to protect human health and the environment.

The following are some methods for sewage disposal:

Wastewater Treatment: Initial treatment involves the physical removal of large solids, whereas secondary treatment uses biological processes to break down organic matter and remove dissolved pollutants.

Sludge Treatment: The separated sludge is under further treatment, which may include stabilization, dewatering, and, in some cases, additional processes to reduce contaminants.

Land Application: Treated sludge can be applied to agricultural land as a fertilizer or soil conditioner if it meets regulatory guidelines and has been properly treated.

Landfills: If sludge cannot be reused or recycled, it can be disposed of in a designated landfill that meets regulatory requirements, ensuring proper containment and preventing soil and water contamination.

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Answer:

Explanation:

Heat energy always moves from hot to cold. The sunlight doesn't reach certain parts of the ocean due to it being so deep. The water above it absorbs it. So because this top water absorbs all the heat/energy, it is a lot warmer and is constantly transferring heat to the colder parts through kinetic energy. The warmer water has particles that have way more kinetic energy than the cold particles below it. And more kinetic energy means more movement, so that's why they transfer their heat to the colder particles.

I dont actually know if Im correct or not. Im just guessing based on what I know about physics.

Therefore, the sets of quantum numbers that are incorrect in the hydrogen atom are (n=0, l=0, ml=0, ms=+1/2), (n=3, l=3, ml=0, ms=-1/2), (n=2, l=0, ml=2, ms=+1/2), and (n=4, l=2, ml=0, ms=0).

In the hydrogen atom, there are certain rules and restrictions on the values of quantum numbers. The sets of quantum numbers that are not allowed in the hydrogen atom are:

1. (n=0, l=0, ml=0, ms=+1/2):

The principal quantum number (n) cannot be zero.

It must have a positive integer value.

2. (n=3, l=3, ml=0, ms=-1/2):

The azimuthal quantum number (l) cannot be greater than or equal to the principal quantum number (n).

Therefore, l cannot be 3 when n is 3.

3. (n=2, l=0, ml=2, ms=+1/2):

The magnetic quantum number (ml) must satisfy the condition -l ≤ ml ≤ l.

In this set, ml is 2, which exceeds the allowed range (-l ≤ ml ≤ l) when l is 0.

4. (n=4, l=2, ml=0, ms=0):

The spin quantum number (ms) cannot be zero.

It must have either a positive or negative value of +1/2 or -1/2.

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Answer:

1 mole

Explanation:

No of moles=mass/molar mass

molar mass=23+1+16=40

No of moles=40/40

No of moles=1

Answer: Cr2(SO4)3 its this

Explanation:

Answer:

An alkaline solution of glucose acts as a reducing agent and reduces added methylene blue from a blue to a colourless form.

Answer:To calculate the concentration of the Fe(NO3)3 solution after dilution, we can use the formula:

Explanation:

C1V1 = C2V2

C1 = Initial concentration of the solution

V1 = Initial volume of the solution

C2 = Final concentration of the solution

V2 = Final volume of the solution

Initial concentration (C1) = 3.0 M

Initial volume (V1) = 80 mL

Final volume (V2) = 1500 mL

Using the formula, we can solve for C2:

C1V1 = C2V2

(3.0 M)(80 mL) = C2(1500 mL)

Rearranging the equation to solve for C2:

C2 = (C1V1) / V2

C2 = (3.0 M)(80 mL) / 1500 mL

C2 ≈ 0.16 M

Therefore, the concentration of the Fe(NO3)3 solution after dilution is approximately 0.16 M.

we have an initial solution of Fe(NO3)3 with a concentration of 3.0 M and a volume of 80 mL. The goal is to dilute this solution to a final volume of 1500 mL and determine the concentration of the diluted solution.

To do this, we can use the dilution formula: C1V1 = C2V2, where C1 and V1 represent the initial concentration and volume, and C2 and V2 represent the final concentration and volume.

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Answer:

B and C

Explanation:

I think the answer correct is C because you never know in what temperature the block of ice is going to melt but if it says select all that apply its possible that B might be useful.

Answer:

Part 1:sodium

rubidium

Part 2: protons neutrons and electrons are all 12

The number of protons is equal to the no. of neutrons from the electronic arrangement of magnesium and the no. of electrons is got from the atomic no. of magnesium

Answer:

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

\(n = \frac{N}{L} \\\)

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

\(n = \frac{4.3 \times {10}^{27} }{6.02 \times {10}^{23} } \\ = 7142.857...\)

We have the final answer as

Hope this helps you

The empirical formula of ibuprofen is C13H18O2.

Solution:

We have a mass of each element as:

C: 75.69 g

H: 8.8 g

O: 15.52 g

Divide by molar mass to get the number of moles of each:

C: 75.69/12.01 = 6.3022

H: 8.8/1.008 = 8.7302

O: 15.52/16.0 = 0.97

Divide by smallest:

C: 6.3022/0.97 = 6.5

H: 8.7302/0.97 = 9

O: 0.97/0.97 = 1

Multiply by 2 to get the simplest whole number ratio:

C : 6.5*2 = 13

H : 9*2 = 18

o : 1*2 = 2

So the empirical formula is C13H18O2.

An empirical formula is the chemical formula of a compound that indicates the proportion of elements present in the compound but does not indicate the actual number or arrangement of atoms. This will be the smallest integer ratio of the elements in the compound.

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Answer: Thus 9.75 moles of iron will be required.

Explanation:

The balanced chemical reaction is:

\(2Fe+3O_2\rightarrow 2Fe_2O_3\)  

According to stoichiometry :

2 moles of \(Fe_2O_3\) are produced by= 2 moles of \(Fe\)

Thus 9.75 moles of \(Fe_2O_3\) are produced by=\(\frac{2}{2}\times 9.75=9.75moles\)  of \(Fe\)

Thus 9.75 moles of iron will be required.

Answer:

Rusting

I guess

Explanation:

Cause in iron if a brown coating appears it is called rusting

Answer:

Molecules do't break up and reform when a substance boils and cools. Particles stay the same size and shape during state changes.

Explanation:

brainliest will be appreciated

The net ionic equation for the reaction between AgNO3 and NH4Cl is: Ag+(aq) + Cl-(aq) → AgCl(s)

When AgNO3 (silver nitrate) and NH4Cl (ammonium chloride) are mixed, a white precipitate of AgCl (silver chloride) is formed.

AgNO3 is a soluble salt that dissociates in water to form Ag+ and NO3- ions, while NH4Cl also dissociates in water to form NH4+ and Cl- ions. When these two solutions are mixed, the Ag+ ions react with the Cl- ions to form an insoluble precipitate of AgCl, which is a white solid. The ammonium ion (NH4+) and the nitrate ion (NO3-) are spectator ions and do not participate in the reaction.

The overall balanced chemical equation for the reaction is:

AgNO3(aq) + NH4Cl(aq) → AgCl(s) + NH4NO3(aq)

The net ionic equation shows only the species that are involved in the reaction and excludes spectator ions. Therefore, the net ionic equation for the reaction between AgNO3 and NH4Cl is:

Ag+(aq) + Cl-(aq) → AgCl(s)In the net ionic equation, the ammonium ion (NH4+) and the nitrate ion (NO3-) are not shown since they do not participate in the reaction.

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Answer:

In chemistry and atomic physics, the main group is the group of elements whose lightest members are represented by helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, and fluorine as arranged in the periodic table of the elements. The main group includes the elements in groups 1 and 2, and groups 13 to 18.

The molarity, amount and volumes required are:

Molarity of a solution is defined as the number of moles of a solute dissolved in a given volume in litres of the solution.

molarity = 2/0.1

molarity = 20. M

molarity mass of potassium iodide = 166 g/mol

100 mL = 0.1 L

number of moles = 10/166 = 0.06 moles

Molarity = 0.06/ 0.1

Molarity = 0.6 M

.

Molarity = 0.427/0.855

Molarity = 0.50 M

1500 mL = 1.5 L

molar mass of aluminium carbonate = 87 g/mol

number of moles = 2340/87 = 26.9 moles

Molarity= 26.9/1.5

Molarity = 17.9 M

100 mL = 0.1 L

molarity = 2.0

number of moles = 2.0 × 0.1 = 0.2 moles

molar mass of potassium iodide = 166 g/mol

mass = number of moles × molar mass

mass = 0.2 × 166

mass of potassium iodide = 33.2 g

Number of moles of potassium iodide = 25/166 = 0.15 moles.

Volume = number of moles/molarity

Volume of water needed = 0.15/0.6

Volume of water needed = 0.30 L or 300 mL

Number of moles of aluminium carbonate = 10/87 = 0.115 moles.

Volume = number of moles/molarity

Volume of water needed = 0.115/0.3

Volume of water needed = 0.383 L or 383 mL

Therefore, the molarity, amount and volumes required are:

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Answer:

The size of the atom closest to 30 to 300 pm

Explanation: