help me please if you can a. ammonia b. battery acid c.pure waterd. sea water

Help Me Please If You Can A. Ammonia B. Battery Acid C.pure Waterd. Sea Water

Answers

Answer 1

Answer:

ammonia

Explanation:


Related Questions

Consider the following reaction for the production of NO2.2 NO(g) + O2(g) → 2 NO2(g)What mass of O2 in g is required to produce 15 L NO2 at 344 K and 752 mm Hg? (R = 0.08206 L⋅atm/mol⋅K)

Answers

The question requires us to calculate the mass of reactant (O2) necessary to obtain 15 L of the product (NO2) under the conditions given.

The following information was provided by the question:

- Balanced chemical reaction: 2 NO(g) + O2(g) → 2 NO2(g)

- Final volume of NO2: 15 L

- Pressure: P = 752 mmHg

- Temperature: 344 K

- Gas constant: R = 0.08206 L⋅atm/mol⋅K

To solve this question, we'll need to go through the following steps:

1) calculate the number of moles that corresponds to 15 L of NO2, considering the temperature and pressure given;

2) use the stoichiometric relation to calculate the necessary amount of O2 to produce the previously calculated number of moles of NO2

3) use the molar mass of O2 and the value calculated on step 2 to obtain the necessary mass of O2

Next, we'll solve the problem following these steps:

1) To calculate the number of moles of NO2, we'll use the following equation:

[tex]P\times V=n\times R\times T[/tex]

where P is the pressure, V is the volume of gas, n is the number of moles, R is the constant of gases and T is the temperature.

If we rearrange the equation to calculate the number of moles, we'll have:

[tex]n=\frac{P\times V}{R\times T}[/tex]

Note that the problem provided all necessary information for this calculation, but the pressure given (752 mmHg) needs to be converted into atm to match the constant provided.

To do that, we'll use the following:

1 atm = 760 mmHg

Thus, we need to divide the value provided by 760:

[tex]P=752\text{ mmHg}\times\frac{1\text{ atm}}{760\text{ mmHg}}=0.989\text{ atm}[/tex]

Now, we can apply the values of pressure, volume and temperature, as well as the constant provided, to the equation written above:

[tex]n=\frac{(0.989\text{ atm)}\times(15\text{ L)}}{(0.08206\text{ L.atm/mol.K)}\times(344\text{ K)}}=0.525\text{ mol}[/tex]

So far, we have that the volume of NO2 to be produced (15 L) corresponds to 0.525 mol under the conditions of pressure and temperature provided.

2) Next, we use the chemical reaction to calculate the number of moles of O2 required to produce 0.525 mol of NO2.

From the reaction, we have that 1 mol of O2 leads to 2 mol of NO2. Then, we use this to calculate how many moles of O2 would produce 0.525 moles of NO2:

1 mol O2 --------------- 2 mol NO2

x -------------------------- 0.525 mol NO2

Solving for x, we have:

[tex]x=\frac{(1\text{ mol O2)}\times(0.525\text{ mol NO2)}}{(2\text{ mol NO2)}}=0.263\text{ mol O2}[/tex]

Now, we know that 0.263 moles of O2 are necessary to produce 15 L of NO2

3) The last step is calculate the mass of O2 that corresponds to 0.263 moles of this compound.

To do this, we need the molar mass of O2. Since the atomic mass of oxygen is 15.99 u, the molar mass of O2 is:

molar mass O2 = (2 * 15.99) = 31.98 g/mol

With this information, we can calculate the mass of 0.263 moles of O2:

1 mol O2 -------------------- 31.98 g O2

0.263 mol O2 ------------ y

Solving for y, we have:

[tex]y=\frac{(0.263\text{ mol O2)}\times(31.98\text{ g O2)}}{(1\text{ mol O2)}}=8.41\text{ g O2}[/tex]

Therefore, the mass of O2 necessary to produce 15 L of NO2 under the conditions given is 8.41 g.

How many moles of NaOH are present in 12.0mL of 0.110 M NaOH? Moles: _________

Answers

NaOH

M = molarity (mol/L)

[tex]M\text{ = }\frac{mass\text{ of solute}}{\text{molecular mass of solute x volume of solution (L)}}=\frac{moles\text{ of solute}}{\text{volume of solution(L)}}[/tex][tex]M=0.110\text{ }\frac{mol}{L}=\text{ }\frac{moles\text{ of NaOH}}{0.012L}[/tex]

12.0 ml = 0.012 L

[tex]\text{moles of NaOH = 0.11 }\frac{mol}{L}x0.012L=1.32x10^{-3\text{ }}moles\text{ of NaOH}[/tex]

Answer: moles of NaOH = 1.32x10^-3 moles

[tex]\text{moles NaOH = 1.32x10}^{-3}moles\text{ = 0.00132 moles NaOH}[/tex]

A process that may lead to gamates containing too many or too few chromosomes is called?

(A) Recombination

(B) Crossing over

(C) Karyogenesis

(D) Nondisjunction

Answers

Answer:

D) Nondisjunction

Explanation:

Nondisjunction happens when a chromosome pair doesn't separate during meiosis. A result is one of the gamates has to any chromosome, while others have much less.

What kind of energy transfer happens when you hang Christmas lights?

Answers

Answer: For example, Christmas lights transform electrical energy into thermal energy and light energy.

Explanation: so it either thermal or light, most likely light.

Two atoms with atomic numbers 12 and 17 would

bond to form an ionic compound
bond to form a covalent compound
bond to form a metallic lattice
not bond with each other

Answers

Answer:

bond to form a covalent bond

Explanation:

a covalent bond is formed when two atoms share electron pairs.

-8- A student conducted a number of tests on a solid mixture, X. The inferences made are recorded in Table 2. Complete Table 2 by filling in the observations based on the inferences made. TABLE 2: TESTS ON MIXTURE X Test Observation Inferences (a) Distilled water was added to a portion of X and the resulting mixture stirred and filtered. (The residue was set aside for use later.) The filtrate was divided into 3 equal portions and tests (b) to (d) done on separate portions. Clions are present. (b) Dilute nitric acid followed by a few drops of silver nitrate solution was added. Ammonium hydroxide solution was added to the resulting mixture. An oxidizing agent is present. (c) A few drops of potassium iodide solution were added. Iron(III) ions are present. Aqueous sodium hydroxide was added until in excess. Carbonate ions are present. (e) Dilute nitric acid was added to the residue from test (a) and the gas produced passed through lime water. Total 1 •Pet (3 marks) (2 marks) (2 marks) (3 marks)

Answers

Answer:

There would be a change in the color of the potassium iodide from yellowish-brown to colorless

Explanation:

Here, we want to test for the presence of oxidizing agent by the use of potassium iodide

Since we already have the inference, we need to state what would be observed

Potassium iodide itself is a reducing agent

Thus, it becomes oxidized

In the process of being oxidized, there would be a color change

The color change observed will be from yellowish-brown to colorless

30.The type of chemical reaction represented by the following equation is....HBr + NaOH ---> H2O + NaBrSelect one:a. decomposition. b. double displacement.c. single displacement.d. synthesis.

Answers

Answer:

b. Double displacement.

Explanation:

It is a double displacement reaction, because in this case, hydrogen atom in HBr is replaced by a sodium atom (from NaOH), and the sodium atom (in NaOH) is replaced by another H atom from HBr molecule, to form H2O.

How do you calculate mass of a known substance (sodium chloride for example) given its amount in terms of moles? O multiply moles by the molar mass O divide moles by the molar mass O cannot be determined based on the given divide the molar mass by the Avogadro's number

Answers

1) List the known and unknown quantities.

Amount of substance: moles

mass: grams

2) Set the equation.

[tex]Molar\text{ }Mass=\frac{Mass\text{ }(grams)}{Amount\text{ }of\text{ }substance\text{ }(moles)}[/tex][tex]Molar\text{ }Mass\ast Amount\text{ }of\text{ }substance\text{ }(moles)=Mass\text{ }(grams)[/tex]

If we have the number of moles of a compound, we have to multiply it by the molar mass to find the mass.

Answer: multiply moles by the molar mass.

.

A sheet of gold weighing 10.7 g and at a temperature of 19.8°C is placed flat on a sheet of iron weighing 18.7 g and at a temperature of 53.3°C. What is the final temperature of the combined metals? Assume that no heat is lost to the surroundings.

Answers

A sheet of gold weighing 10.7 g and at a temperature of 19.8 °C is placed flat on a sheet of iron weighing 18.7 g and at a temperature of 53.3 °C. the final temperature of the combined metals is 48.87 °C.

given that :

weight of gold , m= 10.7 g

temperature, T = 19.8 °C

weight of iron , m = 18.7 g

temperature, T = 53.3 °C

final temperature t = ?

specific heat for gold , c = 0.12 J/ g °C

specific heat for iron , c =  0.45 J/ g °C

now, using the specific heat formula we get :

( mc ΔT ) + ( mc ΔT ) = 0

( 10.7 × 0.12 ×( t - 19.8 )  +  ( 18.7 × 0.45 × (t - 53.3 ) = 0

(1.28 t - 25.4) + ( 8.41 t - 448.2 ) = 0

9.69 t = 473.6

t = 48.87 °C

Thus, A sheet of gold weighing 10.7 g and at a temperature of 19.8 °C is placed flat on a sheet of iron weighing 18.7 g and at a temperature of 53.3 °C. the final temperature of the combined metals is 48.87 °C.

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In Peft A, we saw that the theoretical yield of aluminum oxide is 1.50 mol. Calculate the percent yield if the actual yield ofaluminum oxide is 0.885 mol .Express your answer with the appropriate units.D View Available Hint(s)

Answers

Explanation:

The theoretical yield of our reaction is 1.50 moles, the actual yield of aluminum oxide is 0.885 moles. The percent yield is:

percent yield = actual yield/theoretical yield * 100 %

percent yield = 0.885 moles/(1.50 moles) * 100 %

percent yield = 59.0 %

Answer: The percent yield is 59.0 %.

One of the waste products produced by kidneys is creatinine. A healthy range ofcreatinine in human blood is between 0.50 mg/dL and 1.1 mg/dL. Elevated levels of thiscompound could indicate a problem with kidney function.The concentration of creatinine in patient’s blood was reported in g/L: 0.0082 g/L.Is this value within the normal range? If it is not, is this concentration low or high?Confirm your answer with your calculations and show all the work.The concentration of creatinine = _____________mg/dL. It is ______________the normal range

Answers

The normal range of creatinine in human blood is between 0.50 mg/dL and 1.1 mg/dL. The patient's blood has a concentration of 0.0082 g/L. Let's convert that value into mg/dL.

We kwnot that there are 1000 mg in 1 g. And there are 10 dL in 1 L. We have to use those conversions.

1000 mg = 1 g 10 dL = 1 L

0.0082 g/L = 0.0082 g/L * 1000 mg/g = 8.2 mg/L * 1 L/ (10 dL) = 0.82 mg/dL

0.0082 g/L = 0.82 mg/dL

0.50 mg/dL < 0.82 mg/dL < 1.1 mg/dL

Answer: The concentration of creatinine = 0.82 mg/dL. It is in the normal range.

According to Newton's Second Law, which of the following is TRUE?

Answers

Answer: the second one

Explanation:

Answer:

there's no answer choices?

The volume of a gas is 200 mL at 330.0 kPa what will the volume be when the pressure is reduced to 45.0 kPa assuming the temperature remains constant

Answers

Answer

V2 = 1466.7 mL

Explanation

Given:

Volume 1 = 200 mL

Pressure 1 = 330.0 kPa

Pressure 2 = 45.0 kPa

Required: Volume 2

Solution:

To solve this problem we will use Boyles law

P1V1 = P2V2

V2 = P1V1/P2

V2 = (330.0 kPa x 200 mL)/45.0 kPa

V2 = 1466.7 mL

Which of the following is a combination reaction?A) C) N2 (g) + 02 (g) → 2NO (g)-BB) KOH (aq) + HNO3 (aq) → HN20 (/) + KNO3 (aq)CA) CaCl2 (aq) + Na2SO4 (aq) → CaSO4 (s) + 2NaCl (aq)DD) AgNO3 (aq) + NaCl (aq) - AgCl (s) + NaNO3 (aq)

Answers

Combination (also called synthesis): Where two elements or one compound and one element will bond and form a new compound as a product, the representation for this reaction is:

A + B -> AB

The only option that follows this description of Combination reaction is the first reaction:

N2 + O2 -> 2 NO

5. 10.1 grams of hydrogen gas is contained in a volume of 5.00 L at a temperature of 37.5℃. Find the pressure of the gas.

Answers

Answer: 2607.31 pa

Explanation:

n = 10.1/2 = 5.05 mol

Now, according to ideal gas equation,

PV = nRT

⇒ P × 5 = 5.05 × 8.314 × (37.5 +273)

⇒P = 2607.31 Pa

If 22.4 mL of 0.25 M sodium hydroxide are required
neutralize 15.0 mL of a hydroiodic acid solution, how
many grams of hydrogen iodide were dissolved in the
solution?

Answers

According to the concept of molar concentration,0.715 g of hydrogen iodide are dissolved in the solution.

What is molar concentration?

Molar concentration is defined as a measure by which concentration of chemical substances present in a solution are determined. It is defined in particular reference to solute concentration in a solution . Most commonly used unit for molar concentration is moles/liter.

The molar concentration depends on change in volume of the solution which is mainly due to thermal expansion. Molar concentration is calculated by the formula, molar concentration=mass/ molar mass ×1/volume of solution in liters.

In terms of moles, it's formula is given as molar concentration= number of moles /volume of solution in liters.

Using the formula of M₁V₁=M₂V₂ molarity of HI is determined,that is ,M₂=0.25×22.4/15=0.373 M.

For determining the mass is determined by using the formula,mass=0.373×127.911×0.015=0.715 g

Thus, 0.715 g of hydrogen iodide are required for making the solution.

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35.A substance that affects the speed of a chemical reaction without itself being chemically changed is called a...Select one:a. catalyst.b. product.c. reactant.d. yield.

Answers

Answer

A. catalyst

Explanation

Catalyst, in chemistry, any substance that increases the rate of a reaction without itself being consumed.

What do I do to fill out the table, what belongs where ?

Answers

1) Write the proper formula for Mg2+ and Br-

Balance the charges.

Mg2+: Multiply by 1. This gives a total of two positive charges.

Br-: Multiply by 2. This gives a total of two negative charges.

Use multipliers as subscripts

[tex]\text{MgBr}_2[/tex]

2) Write the proper formula for Al3+ and O2-

Al3+: Multiply by 2. This gives a total of six positive charges.

O2-: Multiply by 3. This gives a total of six negative charges.

Use multipliers as subscripts

[tex]Al_2O_3[/tex]

7. A given sample of gas is held in a container with the volume of 6.02 L with a temperature of 59.5℃ at a pressure of 1.20 atm. What is the final pressure when the sample of gas is administered to a new volume of 10.0 L at 20.2℃?

Answers

The final pressure when the sample of gas is administered to the new volume and temperature is 0.64 atm.

What is the final pressure when the sample of gas?

Combined gas law put together both Boyle's Law, Charles's Law, and Gay-Lussac's Law. It states that "the ratio of the product of volume and pressure and the absolute temperature of a gas is equal to a constant.

It is expressed as;

P₁V₁/T₁ = P₂V₂/T₂

Given the data in the question;

Initial volume V₁ = 6.02LInitial pressure P₁ = 1.20 atmInitial temperature T₁ = 59.5℃ = ( 59.5 + 273.15 )K = 332.65KFinal volume V₂ = 10.0L Final temperature T₂ = 20.2℃ = ( 20.2 + 273.15 )K = 293.35KFinal pressure P₂ = ?

To determine the final pressure of the gas, plug the given values into the formula above and solve for P₂.

P₁V₁/T₁ = P₂V₂/T₂

P₁V₁T₂ = P₂V₂T₁

P₂ = P₁V₁T₂ / V₂T₁

P₂ = ( 1.20 atm × 6.02L × 293.35K ) / ( 10.0L × 332.65K )

P₂ = ( 2119.1604 KLatm ) / ( 3326.5 KL )

P₂ = 0.64 atm

Therefore, the final pressure of the gas is 0.64 atm.

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1. Explain why sulfur has a larger atomic radius than chlorine, even though chlorine has more protons, neutrons and electrons.

Answers

Sulphur has a larger atomic radius than chlorine, even though chlorine has more protons, neutrons and electrons because sulfur is to the left of chlorine in the periodic table.

What is atomic radius?

Atomic radius is defined as the distance between the atomic nucleus of an atom to the electron which is located at the outermost shell of the atom.

In the periodic table, the elements are being arranged in groups and periods with respect to their various atomic mass and numbers.

The atomic radius decreases across the period but increases down the group of the periodic table.

Therefore, sulphur would probably have a larger atomic radius when compared with chloride because it is located to the left of chloride in the periodic table.

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Write formulas or names as appropriate for each of the following acids. 1. Hydroiodic acid 2. Carbonic acid 3. Chlorous acid 4. Sulfuric acid 5. Phosphorous acid 6. HCN (aq) 7. H2C2O4 (aq) 8. HNO2 (aq) 9. H2Cr2O7 (aq) 10. HMnO4 (aq)

Answers

ANSWER

The chemical formula of Hydroiodic acid is HI

EXPLANATION

Hydroiodic acid is formed from a reaction between hydrogen and iodine resulting into an aqueous solution of Hydrogen iodide

[tex]\begin{gathered} H^{+_{}}+I^-\rightarrow HI_{(aq)} \\ \end{gathered}[/tex]

Hence, the chemical formula of Hydroiodic acid is HI

A single electron in an orbital has quantum numbers n = 2, ℓ = 0, mℓ = 0, ms = ½. what are the quantum numbers for the next electron added to this atom?

Answers

The quantum numbers for the next electron added to this atom are  n = 2, ℓ = 0, mℓ = 0, ms = -½

The set of numbers used to explain the placement and strength of the electron in an atom are called quantum numbers. There are 4 quantum numbers, particularly, main, azimuthal, magnetic, and spin quantum numbers. The values of the conserved portions of a quantum gadget are given by quantum numbers.

The price of n tiers from 1 to the shell of the outermost electron of that atom. The important quantum variety may be determined by way of searching the period (numbered row) of the element on the periodic table. The principal quantum numbers of electrons inside the S-block and P-block are similar to the period range.

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A solution is made using 80.1 g of dimethyl ether (MM = 46.07 g/mol) and 110.0 g of methanol (MM = 32.04 g/mol). What is the molality of the dimethyl ether in the solution?​

Answers

The molality of the dimethyl ether in the solution is 15.8m

What is molarity ?

Molality (m), or molal concentration, is the amount of a substance dissolved in a certain mass of solvent. It is defined as the moles of a solute per kilograms of a solvent.

Moles of dimethyl ether= 80.1/46.07 = 1.74 moles

Molarity = moles of solute/ mass of solvent * 1000

                1.74/110*1000 = 15.8m

The molality of the dimethyl ether in the solution is 15.8m

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100 points!
Why rusting is a chemical change?
1-A new reactant is formed
2-A new product is formed
3-There is increased activation energy
4-A new substance is not formed

Answers

Answer: 4

Explanation:

A 51.72 g sample of a substance is initially at 23.5 °C. After absorbing 2547 J of heat, the temperature of the substance is 123.4 °C. What is the specific heat ( ) of the substance?

Answers

The heat absorbed or released by a substance is given by the following formula:

[tex]Q=m\cdot Cp\cdot(T2-T1)[/tex]

Where Q is the heat absorbed or released, m is the mass of the substance, Cp is the specific heat, T2 is the final temperature and T1 is the initial one.

We know the values of Q, m, T2 and T1 because they are given by the question statement, and we have to find the value of Cp.

Solve the equation for Cp and use the given values to find its value:

[tex]\begin{gathered} Cp=\frac{Q}{m\cdot(T2-T1)} \\ Cp=\frac{2547J}{51.72g(123.4\degree C-23.5\degree C)} \\ Cp=\frac{0.49J}{g\degree C} \end{gathered}[/tex]

The specific heat of the substance is 0.49J/g°C.

Use the reaction and bond information to answer the question

Answers

In this question, we have the following reaction:

C2H6 -> C2H4 + H2

As we can see, we had two hydrogen atoms being decomposed from the original molecule, therefore we had 2 bonds being broken, and bond breaking is an endothermic process, because it requires energy in order to occur, therefore we have as the best answer, letter D, or 4th option

F-F covalent bond is slightly polarTrue or false and why?

Answers

Answer:

False. F-F would be a covalent apolar molecule.

Explanation:

As we have two elements bonded of the same element, in this case, F (fluorine), they would be sharing electrons, making that the bonding is covalent but there are no charges, because they're the same element, so it would be a completely covalent apolar molecule.

Why are valence electrons so important?A.They determine what element on the periodic table the atom is.B.They do not form any bonds.C.They are the electrons that participate in chemical reactions.D.They are in the nucleus of the atom.

Answers

Answer:

Explanation:

C

Answer:

I think the answer to your question is option A.

Follow these steps to write the balanced chemical equation for the reaction between nitric acid and iron (III)hydroxide.1. Start by writing the proper names of the products below (separated by a + sign).Nitric acid +Iron (III) hydroxide I2. Next, write the full, balanced molecular equation with the correct chemical formulas, includingcoefficients.3. Finally, write the net ionic equation for this reaction below, including ionic charges.

Answers

[tex]\begin{gathered} Fe(OH)_{3(s)}+3HNO_{3(aq)}\rightarrow Fe(NO_3)_{3(aq)}+3H_2O_{(l)} \\ Complete\text{ }Ionic\text{ }Equation:Fe(OH)_3+3H^++3NO_3^-\rightarrow Fe_^{3+}+3NO_3^-+3H_2O \\ Net\text{ }Ionic\text{ }Equation:Fe(OH)_{3(aq)}+3H_{(aq)}^+\rightarrow Fe_{(aq)}^{3+}+3H_2O_{(l)} \end{gathered}[/tex]

Choose the effect of acid you think is most important, and justify your choice.​

Answers

The effect of acid you think is most important because chemical that can donate a hydrogen ion to other molecule

Acid is an that in water solution taste sour and changes blue litmus to red and react to some metal to liberate hydrogen react with bases to form salt and and also promote chemical reaction and the effect of acid is the chemical that can donate hydrogen ion to other molecule and the result in other molecule changing shape and possibly breaking apart

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