What is the net ionic equation for
the reaction below?
MnS(s) + H₂SO4 (aq) → MnSO4 (aq) + H₂S(g)

Answer:

The process of dissolving frees the electrons in the solution to move.

Explanation:

The process of dissolving is known as "dissociation": the process in which ionic solids (salt, or sodium chloride is an ionic compound), separate into ions in a solvent. (water is the solvent).

When dissolved in water, the dissociation equation looks something like this: \(NaCl_{(s)}\) ⇄ \(Na^{+}_{(aq)}\) + \(Cl^{-}_{(aq)}\)

Before dissolving, sodium chloride (salt), was structured as positive cations (sodium) and negative anions (chloride) in a fixed lattice position. This results in the absence of mobile charge carriers, which is thus the reason why this doesn't conduct. However, after dissolution (dissociation), the ionic bonds are broken, producing mobile ions and thus conducting electricity.

The caused fluctuations in atmospheric CO2 concentrations for hundreds of thousands of years.

Over the past 400,000 years, atmospheric CO2 concentrations have fluctuated due to natural cycles of climate change, primarily driven by changes in Earth's orbit and axial tilt. These changes have caused fluctuations in solar radiation received by the planet, which affects the temperature and chemistry of the atmosphere.

During glacial periods, colder temperatures cause more CO2 to dissolve in the ocean, leading to lower atmospheric concentrations. Conversely, during interglacial periods, warmer temperatures cause oceanic CO2 to be released into the atmosphere, resulting in higher atmospheric concentrations.

Human activities, such as burning fossil fuels and deforestation, have also contributed to the recent increase in atmospheric CO2 concentrations. However, these anthropogenic influences are superimposed on the natural cycles of climate change.

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A 1.50-L vessel is filled with helium at 25.0 °C and 3.04 atm. Under these conditions, the mass of helium is 0.744 g.

An ideal gas is that whose particles have negligible volume and intermolecular forces.

A 1.50 L vessel at 25.0 °C contains He at a pressure of 3.04 atm.

We will use the following expression.

K = °C + 273.15 = 25.0 + 273.15 = 298.2 K

We will use the ideal gas equation.

P × V = n × R × T

n = P × V / R × T

n = 3.04 atm × 1.50 L / (0.0821 atm.L/mol.K) × 298.2 K = 0.186 mol

The molar mass of He is 4.00 g/mol.

0.186 mol × 4.00 g/mol = 0.744 g

A 1.50-L vessel is filled with helium at 25.0 °C and 3.04 atm. Under these conditions, the mass of helium is 0.744 g.

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The  coordinates of B'  is (2,1)​ if the triangle below is reflected across the y-axis .

Hence , option D is correct one .

A reflection is a transformation of the graph of a function over x - axis or the y - axis ( or both ) . The x-coordinate of each point must be negated while reflecting across the Y-  axis, but the  value must remain unchanged .

Each point in a figure is transformed into a reflection by reflecting it over a line. This reflection translates the ABC triangle (A, B, and C) . The outcome is a brand-new figure known as the picture .

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t’ = 22.6 years  The half-life of curium-243

Assuming that the radioactive decay of Curium is of 1st order, therefore the rate equation is in the form of:

A = Ao e^(-kt)

where,

A = amount after t years = 2755

Ao = initial amount = 3312

k = rate constant

t = number of years passed = 6

Therefore the rate constant is:

2755/3312 = e^(-6k)

-6k = ln (2755/3312)

k = 0.0307/yr

The half life, t’, can be calculated using the formula:

t’ = ln 2 / k

Substituting the value of k:

t’ = ln 2 / 0.0307

t’ = 22.586 years

or

t’ = 22.6 years

Is curium used in bombs?

Curium isotopes have been detected in the fallout regions of US nuclear hydrogen bomb test sites, and in spent nuclear fuel. Uses of curium are limited, but it served as a source of α-particles on the X-ray spectrometer on several Mars Rovers.

What does curium do to the body?

It tarnishes rapidly in air. Curium has been used to provide power to electrical equipment used on space missions. Curium has no known biological role. It is toxic due to its radioactivity.

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Answer:

neutralization

Explanation:

Answer:

magnetic field

Explanation:

Explanation:

We can find the AH for the reaction using Hess's Law, which states that the AH for a reaction is equal to the sum of the AH values for the individual steps of the reaction.

Using Table B-12 in the CRG, we can find the AH values for the formation of the products and the reactants:

AHf(CaCl₂) = -795.8 kJ/mol

AHf(HCl) = -92.3 kJ/mol

AHf(Ca(OH)₂) = -986.1 kJ/mol

AHf(H₂O) = -285.8 kJ/mol

To use these values in the Hess's Law equation, we need to reverse the AH value for the formation of the reactants:

AHf(Ca(OH)₂) -> Ca(OH)₂(s) + H₂O(1) AH = +986.1 kJ/mol

Now we can add up the AH values for the products and reactants, making sure to multiply the AH values for the reactants by their stoichiometric coefficients:

2AHf(HCl) + AHf(Ca(OH)₂) - AHf(CaCl₂) - 2AHf(H₂O)

= 2(-92.3 kJ/mol) + 986.1 kJ/mol - (-795.8 kJ/mol) - 2(-285.8 kJ/mol)

= -184.6 kJ/mol + 986.1 kJ/mol + 795.8 kJ/mol + 571.6 kJ/mol

= +2,169.9 kJ/mol

Therefore, the AH for the reaction is +2,169.9 kJ/mol.

Answer: O AH,0 = +125.7 kJ. (Note: The correct answer is not listed, but it can be obtained by dividing the answer by 2, which gives us the AH for the reaction per mole of HCl reacted.)

I believe that the answer is

A) Neutrons

I hope this helps you ^-^

Answer:

neutrons

Explanation:

No visible reaction is observed when starch reacts with cold concentrated tetraoxosulphate (vi) acid​

We know that starch is a poly saccharide. We know that a poly saccharide is composed of so many monomer units. In this case, the starch is a polymer that is composed of glucose units that are joined together by glyosidic linkages to form very long polymer chains.

All the reactions that occur between starch and concentrated tetraoxosulphate (vi) acid​ do occur when the mixture is heated. There is no  cold phase reaction that occurs between starch and concentrated tetraoxosulphate (vi) acid​.

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Answer:B is the right answer

Explanation:

Answer:

Explanation:

Na₂S₂O₃ + 4Cl₂ + 5H₂O → 2NaHSO₄ + 8HCl.

                4 moles                               8 moles

4 moles of Cl₂ forms 8 moles of HCl

.25 moles of Cl₂ forms 8 x .25 / 4 moles of HCl

HCl formed = .50 moles .

E is the answer .

The compound in which the octet is expanded to include 12 electrons is SF6 (sulphur hexafluoride). In SF6, the sulphur atom has six fluorine atoms surrounding it, and in order to bond with all six fluorine atoms, the sulphur atom must have an expanded octet, meaning it has 12 electrons in its outermost energy level.

The octet is expanded to include 12 electrons in compounds where the central atom can accommodate more than eight electrons. Such compounds typically involve elements from the 3rd period or below. A common example is sulfur hexafluoride (SF6), where sulfur has an expanded octet of 12 electrons.

The inorganic compound sulphur hexafluoride is a colourless, odourless, nonflammable, and nontoxic gas. With six fluorine atoms joined to a central sulphur atom, SF6 has an octahedral structure. As might be expected for a non-polar gas, SF6 dissolves poorly in water but readily in non-polar organic solvents. At sea level, it has a density of 6.12 g/L, which is significantly higher than the density of air (1.225 g/L). It is often carried as a compressed gas that has been liquefied.

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Answer:

oh no!! I can't do this ;(

Explanation:

oopsie "BrO" I can't do this pleaseee.

don't be selfish next time and maybe people will help you...

Answer:

Since the alligator population decreased, this means there are less predators for the gar. Less predators for the gar mean the gar population will increase.  More gar also means more competition for the diving duck in terms of animals that eat crabs, and thus the diving duck population will also decrease.

Explanation:

Hope this helped <3

The molecular formula of the compound is C2H2O2Cl2.

To determine the molecular formula of a compound with the empirical formula CHOCl and a molecular weight of 129 g, we need to find the actual number of atoms of each element in the compound.The empirical formula CHOCl suggests that the compound contains one carbon (C), one hydrogen (H), one oxygen (O), and one chlorine (Cl) atom.To calculate the molecular formula, we need to compare the empirical formula's empirical mass to the compound's actual molecular weight. The empirical mass of CHOCl can be calculated by adding the atomic masses of the constituent elements: C (12.01 g/mol) + H (1.01 g/mol) + O (16.00 g/mol) + Cl (35.45 g/mol) = 64.47 g/mol.By dividing the molecular weight of 129 g by the empirical mass of 64.47 g/mol, we find that the compound's molecular formula is approximately C2H2O2Cl2.The molecular formula C2H2O2Cl2 indicates that the compound contains two carbon atoms, two hydrogen atoms, two oxygen atoms, and two chlorine atoms. This formula has a molecular weight of approximately 129 g, which matches the given molecular weight.

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Answer:

Explanation:

When you use electricity to charge your car, you can integrate renewable resources like solar into the fueling process. Without solar, your electric vehicle is still effectively running off of fossil fuels – it's just the fossil fuels utilized at the power plant and not within your engine.

Fossil fuels include substances like natural gas, coal, and oil. It is possible for electric cars to run on these fossil fuels. Fossil fuels like coal are burnt up to generate electricity. So when cars run on electricity, they are indirectly tapping into fossil fuels.

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Answer:

b

Explanation:

The temperatures that describes the value of B is A, 0 °C, because it is the melting point of ice.

The graph shows that the temperature of the ice is increasing as it is heated. The point at which the line changes from solid to liquid is the melting point of ice. This is the temperature at which the ice changes its phase from solid to liquid. The melting point of ice is 0 °C.

The other options are incorrect. The boiling point of water is 100 °C, and the temperature at which water evaporates is also 100 °C. The temperature at point A is greater than 0 °C, but it is not greater than 100 °C.

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Carbon = C

Oxygen = O

CO2 = Carbondioxide

Balanced equation :

C + O2 = CO2

Answer:

co2

Explanation:

c+o2-------------> co2

Database security refers to all the precautions businesses take to guard against hacks into their database management system (DBMS) and every piece of associated software. This involves implementing policies, practices, and tools designed specifically to safeguard the stored sensitive data. Small businesses that manage and collect huge amounts of data should also have database security standards in place because this problem is not just a problem for big businesses.

The finest database security practices listed below can help keep your databases secure from intruders.

In the conventional sense, this entails securing, locking, and providing access controls for your database server to keep away unauthorized visitors. It also entails maintaining the database on a distinct physical system from those used to operate web servers or applications.

A firewall should be used to safeguard your database server against threats to database security because it by default blocks traffic. Only traffic from certain applications or web servers that require access to the data should be permitted. The firewall ought to prevent your database from opening outbound connections unless absolutely necessary.

The database should only be accessible by the fewest individuals feasible. Administrators should only be granted access when they need it and only for as long as they need it to do their duties. Although this may not be feasible for smaller businesses, at the very least permissions should be handled through the use of groups or roles rather than being directly granted.

To safeguard against the most recent vulnerabilities, it's crucial to routinely upgrade your operating system and database software with all security patches installed. Unless there is a compelling reason for any to be disabled, you should also make sure that any database security controls offered by the database are enabled (most are by default).

This entails keeping an eye on logins (and login attempts) to the database and operating system as well as routinely checking logs to look for unusual activity. To inform the appropriate team members when potentially dangerous activity is found, you may also generate alerts.

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1. We can see here that critical mass is important for a fission chain reaction because: C. It allow neutrons to be absorbed by other fissionable nuclei.

Fission chain reaction is a self-sustaining reaction in which the splitting of atomic nuclei of a particular material, such as uranium or plutonium, releases a large amount of energy in the form of heat and radiation.

2. A moderator is important for a fission chain reaction because: A. it keeps the neutrons from escaping the sample.

3. Enrichment is important for a fission chain reaction because: D.  it provides enough fuel to make enough energy.

A moderator is important for a fission chain reaction because it slows down the fast-moving neutrons, making them more likely to be absorbed by other fissionable nuclei and sustain the chain reaction. Without a moderator, the neutrons would move too quickly to be efficiently absorbed.

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Answer: 3.93L of Vinegar

Explanation:

Answer:

A

Explanation:

Nitrogen (N) and Oxygen (O) are both gases, therefore they wouldn't form an ionic but a covalent bond.

Hope this helps :)

Answer: C. Gas

Explanation:

A gas is a state of matter that has no definite shape or volume, and its particles are usually far apart and moving quickly in random directions.

One mole of any substance contains Avogadro's number (6.022 × 10^23) of particles. When considering oxygen atoms, the atomic mass of oxygen is 16 atomic mass units (amu). To determine the mass of one mole of oxygen atoms in grams, we convert the atomic mass to grams using the molar mass.

The molar mass of any element is numerically equal to its atomic mass in grams per mole. Therefore, the molar mass of oxygen is 16 grams per mole. Consequently, one mole of oxygen atoms will contain 16 grams of oxygen.

It is important to note that the molar mass allows us to convert between the atomic scale (atomic mass units) and the macroscopic scale (grams). In this case, by utilizing the molar mass of oxygen, we establish that one mole of oxygen atoms corresponds to 16 grams of oxygen.

In summary, one mole of oxygen atoms contains 16 grams of oxygen, and this relationship is based on the fact that the atomic mass of oxygen is numerically equivalent to the molar mass of oxygen in grams per mole.

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Answer:

C

Explanation:

because 37 does not end with 5 or 0, so it'd be harder to see if the water temperature is accurate if your thermometer goes up by 5s or 10s. And using D, the one that goes up by 20s is out of the question, it'd be too difficult to read. Using a thermometer that goes up by 1s is just best because you can be positive when the water is at 37°C

Answer: In Arizona, climate change is already making deadly heat waves, droughts and wildfires across the state worse. These impacts have real costs on Arizonans' health and economy, including heat-related deaths, higher electricity bills, crop losses and more.

Explanation:

https://www.edf.org/climate/costofinaction- this is where I gathered this info.  Not mine.  But I hope it helps!

Answer: lactate

Explanation:

The missing circulating energy substrate is lactate. Lactate is a product of anaerobic metabolism and can serve as an energy source in certain conditions, such as during intense exercise or in tissues with high glycolytic activity. It can be converted back into glucose through a process known as the Cori cycle and utilized as an energy substrate by various tissues in the body.