Enter the molecular equation representing aqueous acetic acid neutralized by aqueous barium hydroxide. express your answer as a balanced molecular equation. identify all of the phases in your answer.

When 10.0 g of NaCl is added to an aqueous solution of AgNO₃, 24.5 g AgCl will be precipitated.

  The balanced chemical reaction is:

NaCl(aq) + AgNO₃(aq) → AgCl(s) + NaNO₃(aq)

Molar mass of NaCl = 58.5 g

Molar mass of AgCl = 143.5 g

Number of moles of NaCl =     Given Mass    

                                               Molecular Mass

                                          = 10.0 g ÷ 58.44 g/mol

                                          = 0.171 moles

From the reaction,                                            

58.5 g of NaCl produces 143.5 g of AgCl

10.0 g of NaCl will produce 143.5   × 10.0 = 24.5 g AgCl

                                              58.5

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percentage of zinc= 5.985/20 X 100= 29.5%

let x represents zinc and y be magnesium so

Zinc(s) + 2HCl(aq) -----> ZnCl2(aq) +  H2(g)

Mg(s) + 2HCl(aq) -----> MgCl2(aq) + H2(g)

1.152 g of hydrogen gas=( x/65.3 + y/24.305) 20

= 3.08 x10^-2 + 0.8295-8.30

=x=5.985

y= 4.015

percentage of zinc= 5.985/20 X 100= 29.5%

The hydrogen gas escapes, so the two products of Zinc Chloride and Magnesium Chloride will then react with Silver Nitrate. Again, I combine both of the reactions

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Use integrated first order rate law, which give you the concentration of reactant sulfuryl chloride as function of time t:  

ln[SO₂Cl₂] = ln[SO₂Cl₂]₀ - k∙t  

([SO₂Cl₂]₀ i the initial concentration and k is the rate constant)  

=>  [SO₂Cl₂] = e^(ln[SO₂Cl₂]₀ - k∙t) = e^(ln[SO₂Cl₂]₀) ∙ e^( - k∙t)  

= [SO₂Cl₂]₀ ∙e^( - k∙t)  

The decomposition of SO₂Cl₂ follows the reaction equation  

SO₂Cl₂ → SO₂ + Cl₂  

So per mole of sulfuryl chloride disappeared one mole of sulfur dioxide is formed. Hence the changes in concentrations of these compounds are related as:  

-∆[SO₂Cl₂] = ∆{SO₂]  <=>  [SO₂Cl₂]₀ - [SO₂Cl₂] = [SO₂] - [SO₂]₀  

Assuming there was initially no sulfur dioxide you get for its concentration:  

[SO₂] = [SO₂Cl₂]₀ - [SO₂Cl₂]  

= [SO₂Cl₂]₀ - [SO₂Cl₂]₀ ∙e^( - k∙t)  

= [SO₂Cl₂]₀ ∙(1 - e^( - k∙t))  

after 210s starting with 0.150M of [SO₂Cl₂]  

[SO₂]= 0.150M ∙(1 - e^( - 1.48×10⁻⁴s⁻¹k ∙ 240s) =

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The multiplicities that are observed for the signals in the off-resonance decoupled 13c nmr spectrum of (2e)-3-chloro acrylaldehyde is a singlet, a triplet, and a quartet. The correct option is E.

Off-resonance decoupling is a process of removing all hydrogen and carbon coupling from a signal except for the place which is near the nucleus or joined with the nucleus.

In NMR also, the coupling of hydrogen and carbon is removed except for the place near the nucleus.

Thus, the correct option is E) a singlet, a triplet, and a quartet.

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The question is incomplete. Your most probably complete question is given below:

A) 2 singlets and a doublet

B) a singlet and 2 doublets

C) 3 singlets

D) a singlet, a doublet, and a triplet

E) a singlet, a triplet, and a quartet

1) Many important materials are noncrystalline, such as liquids and gases. Water and air have noncrystalline structures. When a metal is melted, its crystalline structure is lost.

2) Mechanical properties such as high strength are desirable for design, but they make manufacturing more difficult. As a result, design properties disadvantage manufacturing properties and vice versa.

Non-crystalline solids, on the other hand, allow particles to move more freely because they are not as rigidly arranged as other solids. These solids form when a liquid is suddenly cooled. Plastic and glass are two of the most common examples.

As a result, they are referred to as "pseudo solids." Crystalline solids have less energy than non-crystalline solids. Solids are classified into two types: crystalline solids and non-crystalline solids.

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The correct set is N, S, and I.

The right combination is N, S, and I.

The ions of two separate elements, one of which is a metal and the other a nonmetal, make up a binary ionic combination. As a result, in binary ionic compounds, metals form cations and non-metals produce anions. As non-metals, nitrogen (N), sulfur (S), and iondine (1) produce anions in binary ionic compounds  anions.

Since Li is a metal, it cannot form an anion.

The other sets are wrong.

Being metals, Rb and Al do not form.

Sr, Ni, and other metals are not anions since they are metals.

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Answer:

Iron ore

Explanation:

Iron ore is the raw material used to make pig iron, which is one of the main raw materials to make steel

Atomic # / Symbol / Name / Melting Point (ºC) / Boiling Point (ºC)

1        /         H    /    Hydrogen   /   -259.14   /   -252.87

2      /        N      /   Nitrogen      /   -209.86    /   -195.8.

3     /       NH3   /  Compound Ammonia  /  -77.7  /  -33.3

For Hydrogen, the Melting point is -259.14, while for the Nitrogen it's -209.86. And the boiling point for Hydrogen is -252.87, while for the Nitrogen it's -195.8. The difference is that Hydrogen has less temperature in melting and boiling points, while Nitrogen has more. And for the Ammonia, this one has the most temperature, being at -77.7 degrees celsius for melting point, which is -107.9°F, and being at -33.3 degrees celsius, which is -28.01°F

Answer:

B

Explanation:

seriously (MÀJÌKÁÎ DÊẞÜ)

Answer:

A detailed map which shows every feature of the earth accurately including roads, airports, names of places etc is called a topographical map

Explanation:

Answer:

When a liquid is remained a liquid the the particles are loose but as the liquid turns into solid the particle get more compact and closer together. So in that case the liquid will have lower density.

Note: I hope you have a Fantastic day!

Multiple factors can affect the accuracy of a pulse oximeter reading, such as

Observe the manufacturer's recommended usage procedures. When you put the oximeter on your finger, make sure your hand is cosy, relaxed, and positioned below the level of your heart.

Remove any nail paint you might have had on that finger. While you are still seated, do not move the location of the pulse oximeter on your body. Wait for the reading to stabilize and display a single number after a brief interval.

If you note your oxygen levels along with the date and time of the reading, you can easily track changes in them and inform your healthcare physician about them. Follow your doctor's recommendations for how often and when to check your oxygen levels.

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A suitable hypothesis for the above experiment conducted by the chemist is as follows: IF the temperature is increased, THEN the rate of chemical change will also increase.

Experiment is a test under controlled conditions made to either demonstrate a known truth, examine the validity of a hypothesis, or determine the efficacy of something previously untried.

A hypothesis is an educated guess or a tentative conjecture explaining an observation or scientific problem.

According to this question, a chemist is designing an experiment to investigate the effect of temperature on the rate of a chemical change.

This suggests that a suitable hypothesis for the above experiment conducted by the chemist is as follows: IF the temperature is increased, THEN the rate of chemical change will also increase.

Also, the Independent variable is the temperature because it is the variable that is changed.

Dependent variable is the rate of chemical change because it is the measured variable.

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Answer:

A suitable hypothesis for the above experiment conducted by the chemist is as follows: IF the temperature is increased, THEN the rate of chemical change will also increase.

Independent variable - Temperature

Dependent variable - Rate of chemical change

controlled variable - pressure or concentration of the reactants

When substance a reacts with substance b, a new substance c is formed. based on this information, we can say that the given chemical reaction is spontaneous.

When two or more reactants combine together to form a final product without the loss of any atoms present in the reactants the reaction is known as addition reaction.

If a and b are elements, then they react with each other and form the compound c. Thus this will be the example of combination reaction in which one or more elements combine to form a compound. As no external energy is provided i.e., heat energy or catalyst , so we can also say that the given reaction is spontaneous.

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The hydrogens and oxygen of a water molecule are held together by covalent bonds.

A covalent bond is an electron exchange that causes the production of electron pairs between atoms. 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. Because electrons are shared among several molecules, each atom can reach the equivalent of a full valence shell, resulting in a stable electronic state.

In organic chemistry, covalent bonds are much more common than ionic bonds. Covalent bonds unite the atoms in a single water molecule, whereas hydrogen bonds join two water molecules. Water develops a covalent bond when oxygen shares an electron with each hydrogen atom.

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The osmium with a density of 22.6g/cm3 has a volume in cm3 of 0.965 cm3

The density formula and the procedure we will use is:

ρ = m/v

Where:

Information about the problem:

Applying the density formula and isolating the volume (v), we get:

ρ = m/v

v = m / ρ

v = 21.8 g / 22.6g/cm3

v = 0.965 cm3

It is a physical quantity that expresses the ratio of the body mass to the volume it occupies.

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Answer:

Explanation:

The option that would be true about the shape of the truck is that the truck keeps its shape. Thus, the correct option is D.

What is the volume of solid?

The volume of a solid may be defined as the process of measuring the overall space that an object takes up in its physical structure.

The volume of any solid alters with respect to its shape. If its shape increases, the volume definitely increases, while if its shape decreases, the volume ultimately reduces.

Therefore, the option that would be true about the shape of the truck is that the truck keeps its shape. Thus, the correct option is D.

Answer:

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Atoms in the amino acids become the h₂O molecule produced by their action in the model and come off from the central carbon and nitrogen but not from the carboxyl, R side chain, or amine.

An amino acid is a group of organic molecules that consist of a basic acidic carboxyl group (―COOH), amino group (―NH2), and an organic R group (or side chain) that is different from each amino acid. Amino acid, the term is a short form of α-amino [alpha-amino] carboxylic acid.

Whereas, the peptide bond is the chemical bond which is a chemical bond formed between two molecules when the carboxyl group of a particular molecule reacts with the amino group of the other molecule, leading to releasing a molecule of water (H2O).

Each molecule consists of a central carbon atom referred to as the α-carbon, to which both a carboxyl group and amino are attached. The remaining two bonds of the α-carbon atom are generally occupied  by  the R group and a hydrogen (H) atom .

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If the price of music lessons falls to $20, the statement which best describes the income and substitution effects is: C. The income effect is that she now can spend more on both goods. The substitution effect is that the price of music lessons relative to socks has decreased so she will definitely buy more music lessons.

Price can be define as an amount of money which is primarily set by the seller of a good (product), and it must be paid by a buyer to the seller, so as to enable the acquisition of this good (product).

Income effect can be defined as a phenomenon which causes an individual (consumer) to adjust his or her consumption of a product due to an increase in its price and change in the level of income.

In conclusion, we can reasonably infer and logically deduce that for each music lesson Emily had purchased before, there is an extra $40 to spend on either music lessons or socks, and as such she might buy more of both due to the income effect.

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Complete Question:

Emily is a rational consumer who gets utility from socks and music lessons, and she considers both of these goods normal goods. Her marginal utility from socks is 50 utils and the price of socks is $5 per pair. Her marginal utility from music lessons is 600 utils and the price of music lessons is $60.

If the price of music lessons falls to $20, which of the following best describes the income and substitution effects?

A. The income effect is that she got a raise from her employer. The substitution effect is that music lessons are now relatively cheaper so she will buy more music lessons.

B. The income effect is that she effectively has more money to spend on either good. The substitution effect is that she will only buy socks now.

C. The income effect is that she now can spend more on both goods. The substitution effect is that the price of music lessons relative to socks has decreased so she will definitely buy more music lessons.

D. The income effect is that she will no longer buy socks because she has more income to spend on music lessons, so she will only buy music lessons.

E. The substitution effect is that she now can spend more on either good. The income effect is that the price of music lessons relative to socks has decreased so she will definitely buy more music lessons.

The hypothetical result that would indicate Griffith's transforming substance is only the extracts from heat-killed cells treated with RNAS are unable to transform nonvirulent bacteria into virulent bacteria.

An experiment is a scientific experiment that is conducted by scientists to prove a hypothesis.

In the experiments conducted by the scientists, the pure cells did not produce favorable findings, but they did exhibit transform ants that were quite similar to DNA.

Thus, the correct option is A, Only the extracts from heat-killed cells treated with RNAS are unable to transform nonvirulent bacteria into virulent bacteria.

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The question is incomplete. Your most probably complete question is given below:

Only the extracts from heat-killed cells treated with RNAS are unable to transform nonvirulent bacteria into virulent bacteria.

All the extracts from heat-killed cells are able to transform to nonvirulent bacteria.

Only the extracts from heat-killed cells treated with D.

The RNA of the bacteria used in this experiment was degraded.

Before to exposed to heat stearic acid is a colorless solid, which gets converted to a clear liquid under the influence of heat.

Stearic acid is a colorless or white, waxy solid, which slightly dissolves in water but is soluble in oil, Stearic Acid is a fatty acid due to the presence of an 18-carbon chain, it also knows as Octadecanoic Acid. When the stearic acid is exposed to heat it gets converted to a clear liquid which was supposed to be a white solid in nature.As we know that the law of conservation of matter defines that matter is conserved,  the matter can change form through chemical and physical changes, but the amount of matter before the changes remains the same, which means it can't be destroyed or created.

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Carbon dioxide may be found in solid form as dry ice.

Carbon dioxide may be found in solid form as dry ice. CO2 is widely used for temporary cooling since it does not have a liquid state at normal atmospheric pressure and instead sublimates immediately from the solid state to the gas state.

Dry ice is used as a refrigerant, particularly when shipping perishable goods like meats or ice cream, as it sublimes (passes straight into the vapour without melting) around 78.5 °C (109.3 °F).

Dry ice is carbon dioxide in its solid form.

Mass of CO2 = 10.8g

Molar mass of CO2 = 44g/mol

molecules of CO2 = 10.8g * 1 mol/44g= 0.245 mol * 6.022 * 10²³ molecules/1 mol= 1.48 * 10 ²³molecules.

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The number of molecules is 1.48 × 10 ²³molecules

Elaborate:

Mass of CO₂ = 10.8 g

Molar mass of CO₂ = 44 g/mol

molecules of CO₂ = 10.8 g × 1 mol/ 44 g= 0.245 mol × 6.022 × 10²³ molecules/1 mol= 1.48 × 10 ²³molecules

What is solid ?

Carbon dioxide may be found in solid form as dry ice. CO₂ is widely used for temporary cooling since it doesn't have a liquid state at normal atmospheric pressure and instead sublimates immediately from the solid state to the gas state.

Dry ice is used as a refrigerant, particularly when shipping perishable goods like meats or frozen dessert , because it sublimes (passes straight into the vapour without melting) around 78.5 °C (109.3 °F).

solid is carbon dioxide in its solid form.

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The atomic number of an isotope of tellurium that has 71 neutrons is 52.

The atomic number of an element is the number of protons in an atom of that element.

The number of protons in an atom can be got by subtracting the mass number of an element from the number of neutrons.

According to this question, one isotope of tellurium, tellurium-123, has 71 neutrons. The atomic number or proton number can be calculated thus;

atomic number = 123 - 71

atomic number = 52

Therefore, the atomic number of an isotope of tellurium that has 71 neutrons is 52.

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Answer:

Explanation:l do not no the answer

Answer:

Explanation: Solid to Solid mixtures

1. Iron+Sulphur

2. Pottasium Nitrate+Potassium Chlorate

3. Ammonium Chloride+Sodium Chloride

Solid to Liquid Mixtures

1. Salt+Water

2. Sand+Water

3. Calcium Carbonate+Water

Liquid to Liquid Mixtures

1. Alcohol+Water

2. Oil+Water

3. Kerosene+Water

Liquid to Gas Mixtures

1. Hydrogen+Oxygen

2. Hydrogen Chloride+Nitogen

3.Air (Air is a mixture of many gases)

The pH of buffer solution is 2.1225

We know that

pH = [tex]pK_a[/tex]   + [tex]log_1_0 \frac{[A]^{-} }{[HA]}[/tex]

In this question

[tex]pK_a[/tex] = 2.40

[tex][A]^{-}[/tex] = 4.75 mol

[HA] = 9 mol

Therefore putting values in formula

pH = 2.40 + [tex]log_1_0\frac{4.75}{9}[/tex]

pH = 2.40  + [tex]log_1_0[/tex] 0.52

pH = 2.40 - 0.283

pH = 2.1225

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The organic compounds that are divided into two types, simple and complex, are called carbohydrates.

Carbohydrates are diveded into twy types: simple and complex (starches, fiber, glycogen).

Simple carbohydrates are made of one (monosaccaharides) or two sugar units.

Complex carbohydrates are made up of many sugar units.

For example, glucose (C₆H₁₂O₆) is a simple carbohydrate.

Glucose is chemical compound composed of six carbon atoms, twelve hydrogen atoms and six oxygen atoms.

Starch is a polymeric carbohydrate consisting of a large number of glucose units bonded by glycosidic bond. Starch is a white, tasteless and odorless powder that is insoluble in cold water or alcohol.

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