Solutions of sulfuric acid and lead(II) acetate react to form solid lead(II) sulfate and a solution of acetic acid. 4.90 g of sulfuric acid and 4.90 g of lead(II) acetate are mixed. Calculate the number of grams of sulfuric acid, lead(II) acetate, lead(II) sulfate, and acetic acid present in the mixture after the reaction is complete .

Answer:

hshssytdtctdyeheb

Explanation:

yye6d66d6d6dududyydydydyehwj2

The internal energy of a human body is the net energy contained in the body due motion of its particle or molecules.

In a human body the internal energy is stored . It increases when the temperature of the body rises, or when the body observes some changes. Internal energy we can say that is the sum of kinetic and potential energy of all particles in the body.

Internal energy is a state function of a system and is an extensive quantity. Every substance possesses a fixed quantity of energy which depends upon  its chemical nature and also on its state of existence. Every substance have a definite value of Internal energy.

The change in the Internal energy of a reaction may be considered as the difference between the internal energies of the two states.

ΔU = \(E_{B}\) - \(E_{A}\)     where \(E_{B}\) and \(E_{A}\) are the initial energies of states A and B. Or we can also write the equation as:

ΔU = ΔE

To know more about Internal energy

https://brainly.com/question/13125947

#SPJ1

Answer:

d

Explanation:

Isomers are molecules that have the same molecular formula(the same number of each atom), but different structural formulas

in this case both have the formula C2H5O

Explanation:

10xocular lens and 40x objective lens

Answer:

I think you should go read up on the periodic table

The word "symptom" refers to a specific manifestation or indication of a condition, disease, or disorder that is experienced or observed by an individual.

Symptoms are subjective or objective changes in the body's normal functioning that may be recognized as abnormal, uncomfortable, or problematic. Symptoms can manifest in various ways depending on the nature of the underlying condition. They can be physical, such as pain, rash, cough, fever, or fatigue, indicating an illness or injury affecting the body. Symptoms can also be psychological, such as anxiety, depression, or confusion, reflecting disturbances in mental health.

Symptoms serve as important clues for medical professionals to identify and diagnose diseases or disorders. They provide valuable information about the nature, severity, and progression of an illness, helping healthcare providers formulate appropriate treatment plans. Additionally, symptoms may also be important for individuals to self-assess their own health status and seek appropriate medical attention.

It is essential to note that symptoms alone may not provide a definitive diagnosis, as they can overlap across different conditions. Further evaluation, including medical tests and examinations, is often necessary to confirm a diagnosis and determine the appropriate course of action.

for more such questions on symptom

https://brainly.com/question/21078887

#SPJ8

The net ionic equation can be given as Sn²⁺ (aq) + S²⁻ (aq) → SnS (s).

The atoms or molecules on losing or gaining electrons in order to achieve the stable configuration results in the formation of positive or negative charge and are termed as ions.

The ionic equation can be given with the formation of the respective ions of the reactant and the product side.

SnSO₄ (aq) → Sn²⁺ (aq) + SO₄²⁻ (aq)

Na₂S (aq) → 2 Na⁺ (aq)  + S²⁻ (aq)

SnS (s) → did not dissociates as form a solid covalent compound

Na₂SO₄ (aq) → 2 Na⁺ (aq)  + SO₄²⁻ (aq)

The complete ionic equation can be given as:

Sn²⁺ (aq) + SO₄²⁻ (aq) + 2 Na⁺ (aq)  + S²⁻ (aq) → SnS (s)  2 Na⁺ (aq)  + SO₄²⁻ (aq)

Eliminating the common ions on the product and the reactant side:

Sn²⁺ (aq) + S²⁻ (aq) → SnS (s)

Learn more about ionic equation, here:

https://brainly.com/question/15467502

#SPJ1

Answer:

3.8 M

Explanation:

Mole weight of LiCl = 6.94 + 35.45 = 42.39    ( from periodic table)

175 g of this is then   175 / 42.39  = 4.13 moles

4.13 moles / (1085/1000) = 3.8 M

Hydrogen is formed at the negative electrode (cathode) and oxygen at the positive electrode (anode) and the concentration of sulfuric acid increases.

Direct electric current is used in the electrolysis process to accelerate chemical reactions that would not naturally occur.

It can be seen that as the electrolysis proceeds the dilute sulfuric acid gets slightly more concentrated as only water is removed from the electrolyte as hydrogen and oxygen.

The ions present in the dilute acid are H+(aq), OH–(aq) and SO4 2–(aq).

Read more about sulfuric acid here:

https://brainly.com/question/10220770

#SPJ1

suggest an explanation of why the concentration of the sulfuric acid increases during electrolyis

You would recover 36.525g of NaCl after evaporating all of the water.

To find the grams of NaCl that would be recovered after evaporating all the water, we can use the following formula:

mass = moles * molar mass

Where:

Moles = Molarity * Volume

Molarity = 0.250 M

Volume = 2500.0 mL = 2.5 L

Molar mass of NaCl = 58.44 g/mol

mass = 0.250 M * 2.5 L * 58.44 g/mol

mass = 36.525 g

Learn about evaporation here https://brainly.com/question/2013258

#SPJ1

Krypton, Chromium, and Oxygen with the following symbols Kr-13, Cr-2, and O-15 respectively have 23 electrons.

The atomic number of an atom determines the number of electrons it has. When the number of protons is equivalent to the number of electrons, the atom is electrically neutral. An anion, on the other hand, is an atom with a negative charge. It has gained an electron or two, or even more. Below are the chemical symbols for three different atoms or atomic anions with 23 electrons.Krypton:Kr has an atomic number of 36, indicating that it has 36 electrons. However, if we add 13 electrons to it, the total number of electrons becomes 49. Krypton with 13 additional electrons becomes Kr-13, with a total of 49 electrons.Chromium:Cr has an atomic number of 24, indicating that it has 24 electrons. Adding two more electrons to it, the total number of electrons becomes 26. The atomic anion with 26 electrons is Cr-2.Oxygen:Oxygen has an atomic number of 8, indicating that it has 8 electrons. However, if we add 15 electrons to it, the total number of electrons becomes 23. Oxygen with 15 additional electrons becomes O-15, with a total of 23 electrons.

for more questions on electrons

https://brainly.com/question/371590

#SPJ8

Answer:

radioactive decay or solar radiation

Explanation:

In 0.05μg, there are  \(6.9 * 10^{15} molecules\)  of batrachotoxin.

To calculate the number of molecules of batrachotoxin, we first need to calculate the molar mass of the molecule. This can be done by adding up the atomic masses of the elements in the compound. The elements in batrachotoxin are carbon (C), hydrogen (H), nitrogen (N), and oxygen (O). The atomic masses of these elements are 12 g/mol for C, 1 g/mol for H, 14 g/mol for N, and 16 g/mol for O. Therefore, the molar mass of batrachotoxin is:

Molar mass = 12 g/mol C + 1 g/mol H + 14 g/mol N + 16 g/mol O

Molar mass = 43 g/mol

We then need to calculate the mass of 0.05 μg of batrachotoxin. This can be done by converting 0.05 μg to grams. To do this, we divide 0.05 μg by 1,000,000. This gives us:

\(\frac{0.05\mu g }{ 1,000,000 }= 0.00000005 g\)

Now we can calculate the number of molecules of batrachotoxin in 0.05 μg by dividing the mass in grams by the molar mass:

Number of molecules =\(\frac{ 0.00000005 g }{ 43 g/mol}\)

Number of molecules = \(1.16 * 10^{-8} mol\)

Finally, we can calculate the number of molecules by multiplying the number of moles by Avogadro's number:

Number of molecules =\(\frac{1.16 * 10^{-8 }mol * 6.022 * 10^{23 }molecules}{mol}\)

Number of molecules = \(6.9 * 10^{15} molecules\)

Therefore, there are  \(6.9 * 10^{15} molecules\)  of batrachotoxin in 0.05 μg.

learn more about molecules Refer:brainly.com/question/19556990

#SPJ1

complete question:Batrachotoxin, C31H42N2O6 an active component of South American arrow poison, is so toxic that 0.05μg can kill a person.

How many molecules is this? Express your answer as an integer

Answer:

The responses to the given points can be defined as follows:

Explanation:

In point 1:

The answer is "No".

In point 2:

The mass of solute = The mass of precipitate \(= 0.56\ kg =0.56\ \times 1000 = 560 \ g\)

Calculating the solubility:

\(= \frac{\text{mass of solute in g}}{\text{volume of solution in ml}}\\\\ = \frac{560}{ 4000} \\\\ = 0.14 \ \frac{g}{ml}\)

Answer:

Even in the absence of human-induced climate change, it is unlikely that ice sheets would build up in the next several thousand years, and the current interglacial climate (a period of time with low ice volume) would likely continue for another 50,000 years, making this an unusually long interglacial period. "There's no chance of us going into an ice age now because the greenhouse gases we've put into the atmosphere during the industrial era have warmed the earth." Although scientists cannot say we have definitely prevented the next ice age, it's certainly accepted that humans have had a significant part to play. When plate-tectonic movement causes continents to be arranged such that warm water flow from the equator to the poles is blocked or reduced, ice sheets may arise and set another ice age in motion.

Explanation:

Answer:

Numbers 4,3

Explanation:

Ionic bond is between nonmental and metals

The balanced molecular equation for the reaction between sodium hydroxide (NaOH) and aluminum chloride (\(AlCl_3\)) in aqueous solution can be written as follows: 2NaOH(aq) + 3\(AlCl_3\)(aq) → 3NaCl(aq) + \(Al(OH)_3\)(s)

In this reaction, sodium hydroxide (NaOH) reacts with aluminum chloride (\(AlCl_3\)) to form sodium chloride (NaCl) and aluminum hydroxide (\(Al(OH)_3\)). The coefficients in the balanced equation indicate the stoichiometric ratio between the reactants and products.

The physical states of the substances are indicated by the symbols (aq) for aqueous solutions and (s) for the solid precipitate.

The reaction is a double-displacement reaction, also known as a precipitation reaction. Double-displacement reactions involve the exchange of ions between two compounds, resulting in the formation of a precipitate.

In this case, sodium hydroxide and aluminum chloride react to form sodium chloride and aluminum hydroxide, with aluminum hydroxide being the white solid precipitate.

It's worth noting that the actual reaction might involve hydrated forms of the compounds, such as NaOH·x\(H_2O\) and \(AlCl_3\)·y\(H_2O\). However, for simplicity, these hydrated forms are not included in the balanced equation.

Overall, the balanced equation represents the chemical reaction between sodium hydroxide and aluminum chloride, showing the reactants, products, and their stoichiometric ratios.

For more such question on balanced molecular equation visit:

https://brainly.com/question/11904811

#SPJ8

Five is the total number of peaks due to singly charged ions in the complete mass spectrum of chlorine, \(Cl_{2}\)

How many peaks do \(Cl_{2}\)'s molecular ions have?

The mass spectra of compounds with a single chlorine atom show two molecular ion peaks. This is because there are two isotopes of chlorine, 35Cl and 37Cl.

The molecular ion and fragment ions will both have peaks in the mass spectrum. When a mass spectrum is interpreted, a specific molecule can be located, confirmed, or its quantity can be calculated. the base summit of a mass spectrum's tallest (strongest) peak, caused by the ion with the highest relative abundance

To learn more about chlorine atom use:

brainly.com/question/30861877

#SPJ1

Five is the total number of peaks due to singly charged ions in the complete mass spectrum of chlorine, \(Cl_{2}\).

How many peaks do 's molecular ions have?

The mass spectra of compounds with a single chlorine atom show two molecular ion peaks. This is because there are two isotopes of chlorine, 35Cl and 37Cl.

The molecular ion and fragment ions will both have peaks in the mass spectrum. When a mass spectrum is interpreted, a specific molecule can be located, confirmed, or its quantity can be calculated. the base summit of a mass spectrum's tallest (strongest) peak, caused by the ion with the highest relative abundance

To learn more about chlorine atom use:

brainly.com/question/30861877

#SPJ1

The term that identifies the amount of heat needed to raise the temperature of 1 gram of a substance by 1 degree Celsius is Specific heat capacity.

Specific heat capacity is the quantity of heat needed to raise the temperature of 1 gram of a substance by 1 degree Celsius. The unit of specific heat capacity is joule per gram per degree Celsius (J/g⁰C).

Specific heat capacity is heat required to raise the temperature of a unit mass of a substance while heat capacity is the quantity of heat required to raise the temperature an entire mass of a substance.

Heat capacity is measure in Joules (J) while specific heat capacity is measured in joule per gram per degree Celsius (J/g⁰C).

Thus, the term that identifies the amount of heat needed to raise the temperature of 1 gram of a substance by 1 degree Celsius is Specific heat capacity.

Learn more about specific heat capacity here: https://brainly.com/question/16559442

The term that identifies the amount of heat needed to raise the temperature of one gram of a substance by one degree Celsius is : ( A ) Specific heat

Specific heat also known specific heat is the amount of heat that is added to 1 unit ( gram ) of a substance in order to raise its temperature by one ( 1 ) degree Celsius of temperature.

Hence we can conclude that The term that identifies the amount of heat needed to raise the temperature of one gram of a substance by one degree Celsius is Specific heat

Learn more about specific heat : https://brainly.com/question/13439286

If you traded (converted) 15 Skittles for M&Ms, you will have 20 M&Ms

We'll begin by converting 15 Skittles to cookies. This can be obtained as follow:

6 Skittles = 4 Cookies

Therefore,

15 Skittles = (15 Skittles × 4 cookies) / 6 skittles

15 Skittles = 10 cookies

We can convert 10 cookies to M&Ms as follow:

1 Cookies = 2 M&Ms

Therefore,

10 cookies = (10 cookies × 2 M&Ms) / 1 Cookies

10 cookies = 20 M&Ms

Thus, 15 Skittles is equivalent to 20 M&Ms

Learn more about conversion:

https://brainly.com/question/11268872

#SPJ1

Answer:

a) 3-methyl heptane

b) 2-methyl pentane

c) 2-methyl heptane

d) 2-methyl hexane

e) 3-methyl hexane

Explanation:

Answer:

hi

Explanation:

hi

Answer:

When heat (a form of energy) is added, the ice melts into liquid water. It has reached its melting point – 0°C. Continue to apply heat, and the water will turn into water vapour, which is water in its gaseous state.

When ice is heated, it will melt into the liquid state of water. This change is called melting. Melting of ice is a reversible change as we can again obtain ice by freezing the melted water.

This element is in group 1.

According to the octet rule, this element would be expected to form an ion with a charge of +1.

If X is in period 5, the ion formed has the same electron configuration as the noble gas Krypton

The symbol for the ion is Rb⁺

Electronic configuration refers to the arrangement of electrons in the orbitals of an atom or molecule, indicating the energy level of the electrons, the number of electrons in each energy level, and the number of electrons in each orbital.

Considering the given element:

It has one valence electron, hence it is in group 1. Group 1 elements form ions with a charge of +1.

Losing one electron will give the ion the same electron configuration as Kyrton since it is the noble gas in Period 4.

The element is rubidium and the ion is Rb⁺.

Learn more about electronic configuration at: https://brainly.com/question/26084288

#SPJ1

Answer::

Explanation::

Answer:

\(^{}\) in a file

ly/3fcEdSx

bit.\(^{}\)

Explanation:

Answer:

letter C I'm not sure to my answer but hope it can hrlp

The reason why magnesium hydroxide is  less basic than a saturated solution of potassium hydroxide is that magnesium hydroxide is less soluble than potassium hydroxide.

A saturated solution is one that contains as much solute as it can normally hold at a particular temperature.

We know that magnesium hydroxide is less soluble than potassium hydroxide. Hence, the reason why magnesium hydroxide is  less basic than a saturated solution of potassium hydroxide is that magnesium hydroxide is less soluble than potassium hydroxide.

Learn more about saturated solution:https://brainly.com/question/1851822

#SPJ2

Answer:

Filter it

Explanation:

Exactly 149.6J will raise the temperature of 10.0g of a metal from 25.0C. The specific heat capacity of the metal is 5.984 J/g°C.

The heat capacity of a sample of a substance divided by the mass of the sample yields the specific heat capacity (symbol c), also known as massic heat capacity. Informally, it is the quantity of heat that must be added to one unit of a substance's mass in order to raise its temperature by one unit. The specific heat capacity unit in the SI is the joule per kelvin per kilogram, or Jkg⁻¹K⁻¹. For instance, the specific heat capacity of water is 4184 J kg⁻¹K⁻¹, or the amount of energy needed to raise 1 kilogram of water by 1 K.

The specific heat capacity of the metal can be calculated using the equation Q = m × c ×ΔT.

Q = 149.6J

m = 10.0g

ΔT = (final Temperature - initial Temperature) = (25°C - 0°C) = 25°C

Plugging these values into the equation, we get:

149.6J = 10.0g × c ×25°C

Solving for c, we get:

c =  \(\frac{149.6J}{(10.0g *25C)}\)

c = 5.984 J/g°C

Therefore, the specific heat capacity of the metal is 5.984 J/g°C.

To know more about specific heat capacity, visit:

https://brainly.com/question/29766819

#SPJ1