Identify the classification of whipped cream. group of answer choices aerosol solid aerosol foam emulsion solid emulsion

The external expression of a mineral’s orderly internal arrangement of atoms is referred to as its crystal form

Internally, a mineral's crystal structure, or regular, repeating arrangement of atoms, reflects the chemical makeup of the mineral. A CHEMICAL FORMULA, which only lists the proportions of the various elements and groups of elements in the mineral, can be used to describe the composition of a mineral. For minerals with a narrow range of composition, the latter idea—groups of elements—comes into play. Color, hardness, luster, crystal formations, density, and cleavage are characteristics that aid geologists in determining a mineral's identity in a rock. The atomic structure of a crystal essentially determines its form, cleavage, and hardness. Chemical composition is the main determinant of color and density.

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When calcium oxide react with carbon dioxide to form calcium carbonate then  carbon dioxide would react as a Lewis acid in the reaction.

A chemical species known as a Lewis acid has an empty orbital that can accept a pair of electrons from a Lewis base to produce a Lewis adduct.

In the reaction, orbital of  carbon dioxide will be vacant orbital that's why it can be considered as Lewis acid.

Its reaction can be written as:

[tex]CaCO_{3}[/tex] → CaO +[tex]CO_{2}[/tex]

It is kind of decomposition reaction.

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A pure element unbound or in a diatomic state, such as cl2, always has an oxidation number of 0 (zero).

In a neutral substance with atoms of only one element, the oxidation number of an atom is zero. As a result, the oxidation number of the atoms in O2, O3, P4, S8, and aluminum metal is 0. The oxidation numbers for an element in its normal state will be zero. O2 and Cl2 are diatomic gas molecules that occur naturally, thus when they are in that state, they have an oxidation state of zero. Metals like zinc will also have an oxidation number of zero if they are in their natural solid state.

O2 and Cl2 are neutral diatomic, hence they will always have a zero oxidation state. It is impossible for one oxygen atom to have a negative 2 charge while the other has a positive 2. The oxidation states should be 0 if the elements are solids, liquids, or any type of diatomic molecule.

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option (d) 0 is the right option.

A pure element unbound or in a diatomic state, such as cl2, always has an oxidation number of 0.

An unbound or diatomic pure element, like cl2, always has an oxidation number of 0 (zero).

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A precipitation reaction exists in which dissolved substances react to create one (or more) solid products.

A precipitation reaction exists in which dissolved substances react to create one (or more) solid products. Many reactions of this kind concern the exchange of ions between ionic compounds in an aqueous solution and exist sometimes directed as double displacement, double replacement, or metathesis reactions.

A precipitation reaction exists as a chemical reaction happening in an aqueous solution where two ionic bonds integrate, resulting in the construction of an insoluble salt which is named precipitates.

Some examples exist reactions between calcium chloride (CaCl2) and potassium hydroxide(KOH), which result in the appearance of calcium hydroxide which stands as an insoluble salt. The reaction between silver nitrate (AgNO3) and sodium chloride (NaCl), results in the construction of silver chloride (AgCl) exists an insoluble salt.

In an aqueous solution, precipitation stands the procedure of converting a dissolved substance into an insoluble solid from a super-saturated solution. The solid formed exists named the precipitate.

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Answer:

exothermic

Explanation:

exothermic reactions give off heat.....or the temp of the substances increases

Explanation:

The similarities between chemical and physical changes include change in state of matter and both process involve change in energy.

Chemical changes of a substance results in the formation of entirely new substances. These changes are not reversible.

Physical changes results in the change of the state of the substance which can be reversed.

However, both chemical and physical changes results in change of state of matter and both process results in change in energy.

Thus, we can conclude that the similarities between chemical and physical changes include change in state of matter and both process involve change in energy.

(it's alre answered but here it again 'NOTE: not my answer')

Fe is the limiting reactant.

The balanced chemical equation between iron and oxygen to produce iron (III) oxide is

4Fe(s) + 302(g) - ---> 2Fe2O3(s)

Mass of Fe = 227.8 g

Moles of Fe = 227.8gFe*Imol Fe/55.85g Fe = 4.079mol Fe

Mass of oxygen = 128 g

Moles of O2 = 128g02 * 1molo/32g02 = 4molO2

Calculating the limiting reactant: The reactant that produces the least amount of product will be the limiting reactant.

Mass of iron (III) oxide produced from Iron = 4.079mol Fe*2molFe2O3/4molFe*159.69g Fe2O3/1 mol Fe2O3 = 325.7gFe2O3

Mass of iron (III) oxide produced from oxygen = 4molO2 *2mol Fe2O3/3molO2*159.69gFe2O3/1mol Fe2O3 = 425.84gFe2O3

Iron (Fe) produces the least amount of the product iron (III) oxide. So, Fe is the limiting reactant.

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The process of evaporation by which liquid water changes to vapor is shown by a chemical formulae as follows:

Three separation methods that can be used to reverse a physical change include:

Evaporation is the process by which liquids changes to vapor or gas spontaneously.

The rate of evaporation of a liquid increases with increase in temperature of the liquid. The rate of evaporation also increases with increase in surface area of the liquid exposed as well as with increase in wind speed.

The process by which liquid water changes to vapor can be represented by chemical formulae as follows:

H₂O (l) → H₂O (g)

In the equation above, the liquid phase of water, l, is undergoing change to gaseous phase, g.

b. Separation techniques are techniques which are used to separate mixtures of substances.

Three separation methods that can be used to reverse a physical change include:

In conclusion, physical changes are those changes that are easily reversible and which no new products are formed.

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The chance of recurrence of a polygenic trait based on its known incidence in a particular population refers to continuous variation

Polygenic is a trait that is controlled by a group of non-allelic genes. For example, humans can be many different sizes. Height is a polygenic trait, controlled by at least three genes with six alleles. If you are dominant for all of the alleles for height, then you will be very tall. Skin color is also a polygenic trait, as are hair and eye color. A trait that is controlled by a group of non-allelic genes.

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Answer:

1363.2 kilocalories

Explanation:

Heat up the ice ==> melt the ice to water ==> heat the water ==> vaporize the water to steam ==> heat the stem 52 degrees to 152

1.81 kg * (spec heat of ice * 19  +* heat of fusion of water + specific heat of water *100 +  heat of vaporization of water + specific heat of steam* 52)

1810 g  * ( .50 cal/g -C * 19 C    +  79.7 cal / g   +  1 cal/g-C  *100C   +  539 cal/g + .48 cal/g * 52 C ) = 1 363 219.6 calories

(check my math)

There are  1.554 moles are in the sample of gas when a  gas has a volume of 27. 5 L at 302 K and 1. 40 atm.

Calculation,

The given question is solved by the using of ideal gas equation which is shown below.

PV = nRT                               .... ( i )

where , P is he pressure of the gas = 1. 40 atm

V is the volume occupied by the gas = 27.5 L

R is the universal gas constant = 0.082 L atm/K mol

T is the temperature =  302 K

n is he number of moles of the gas = ?

By putting the value of pressure  P , volume V , Universal gas constant and temperature T in the equation ( i ) we get the number of moles.

1. 40 atm × 27.5 L = n × 0.082 L atm/K mol×  302 K

n = 1. 40 atm × 27.5 L/0.082 L atm/K mol×  302 K = 1.554 mole

There are  1.554 moles are in the sample of gas

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There are  0.138 gram  copper could be electroplated on the cathode in an experiment where an average of 200 ma was passed through the cell for 35 minutes .

Calculation ,

Given ; Current passed through copper ( I ) = 200 mA =  200×[tex]10^{-3}[/tex] A

time in second = 35 minutes×60 = 2100 sec

Current ( I )= Q/t

Q =It =  200×[tex]10^{-3}[/tex] A  × 2100 sec  = 420 C

96500 C of charge =  1 mole

420 C of charge =  1 mole ×420 C/ 96500 C = 0.00435 mol

In  , the valancy of Cu is +2 .

2 moles of electron  are required for the decomposition of 1 mole of Cu on the cathode .

0.00435 mol  of electron  are required for the decomposition of Cu =  1mol × 0.00435 mol/2 = 0.002175 mol of Cu

Number of moles of Cu = given mass / molar mass

Mass of Cu = Number of moles of Cu × molar mass = 0.002175 ×63.546

Mass of Cu = 0.138 gram

Therefore , mass of copper is  0.138 gram

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Taking into account the reaction stoichiometry and STP conditions, Finally, a volume of H₂O of 134.4 L will be formed at STP.

In first place, the balanced reaction is:

2 C₆H₆ + 15 O₂  → 12 CO₂ + 6 H₂O

By reaction stoichiometry, the following amounts of moles of each compound participate in the reaction:

Standard pressure and temperature conditions are a set of standard pressure and temperature conditions for laboratory experimental measurements that are established to allow comparisons between different sets of measured data.

Pressure values at 1 atmosphere and temperature at 0 ° C are used and are reference values for gases. And in these conditions 1 mole of any gas occupies an approximate volume of 22.4 liters.

By reaction stoichiometry 2 moles of C₆H₆ form 6 moles of water or H₂O.

Now, you can apply the following rule of three: if by definition of STP conditions 1 mole of H₂O occupies a volume of 22.4 liters, 6 moles occupies how much volume?

volume= (6 moles× 22.4 L) ÷ 1 mole

volume= 134.4 L

Finally, 134.4 L of H₂O will be formed.

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The molar mass of the compound is 68 g/mol.

The Osmotic pressure can be obtained from the relationship;

π= iCRT

π= osmotic pressure = 28.1 mmHg or 0.037 atm

i = Vant Hoff factor = 1

C = concentration = ?

R = gas constant = 0.082 atmLK-1Mol

T = temperature = 20°c + 273 = 293 K

C = π/iRT

C =  0.037/1 * 0.082  * 293

C = 0.0015 M

Now;

Number of moles = C/V = 0.0015/100 * 10^-3

= 0.015 moles

Number of moles = mass/molar mass

Molar mass =  mass/Number of moles = 0. 102 g/ 0.015 moles = 68 g/mol

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By exchanging them with sodium (or potassium) ions, cation exchange water softeners eliminate the calcium and magnesium ions present in hard water.

Ion exchange is the reversible exchange of ions, or charged particles, with other ions that have a similar charge. This happens when ions with a comparable charge that are present in the surrounding solution effectively switch places with ions that are located on an insoluble IX resin matrix.

The ion exchange procedure eliminates the water's enduring hardness. Hardness is eliminated in this technique through the use of resins. Cl- and anion exchange resin are used to exchange Ca++/Mg++ ions and SO4-2 ions (RNH2OH). The ion exchange procedure totally removes all of the total dissolved solids.

In ion exchange, calcium and magnesium, which are hardness ions, are removed and replaced with non-hardness ions, usually sodium, which is provided by dissolved sodium chloride salt, or brine.

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Answer:

pH = 4

Explanation:

pH is a base 10 logarithmic scale

  1000 = 10^3

        7 -3  = pH = 4  

Answer:

the total number of molecules

Answer:

C.) The total number of atoms of each element.

Explanation:

An equation is balanced when there is an equal amount of each element on both sides of a reaction. If these values are not identical, they can be changed by adding coefficients to alter the amount of each molecule. By modifying the amount of molecules within the reaction, you can make the total number of atoms of each element equal on both sides.

Based on the calculations, the total pressure of the final products is equal to 1.76 atm.

From the information provided about this chemical reaction, we can logically deduce the following parameters:

Next, we would write the properly balanced chemical equation for this chemical reaction:

                               I₂ + 5F₂   ⇒  2IF₅

Also, we would determine the number of moles of each atom of I₂ and F₂:

[tex]Number \;of \;moles = \frac{mass}{molar\;mass}[/tex]

Substituting the given parameters into the formula, we have;

Number of moles = 63.45/253.8

Number of moles = 0.25 moles.

Assuming I₂ were limiting, we would need:

5 × 0.25 = 1.25 moles of F₂.

For fluorine gas, we have:

PV = mRT/MM

Mass, m = PVMM/RT

Mass, m = 2.5(5.00)(38)/(0.0821 × 298)

Mass, m = 475/24.4658

Mass, m = 19.42 grams.

Number of moles = 19.42/38

Number of moles = 0.51 moles.

The total number of moles = 0.25 + 0.51 = 0.76 mol.

For the mole fraction of I₂, we have:

Mf = 0.25/0.76

Mole fraction = 0.33.

For the mole fraction of F₂, we have:

Mole fraction = 1 - 0.33 = 0.67.

Next, we would determine the total pressure of the two elements by applying Dalton's law:

Total pressure = 0.33 × 0.27 + 0.67 × 2.5

Total pressure = 1.76 atm.

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The product will not be affected by the addition of twice as much Na₂CO₃.

Here,taking the stoichiometry into consideration, we find that the reaction happens with 1:1 ratio; so, adding twice the amount of Na₂CO₃ will  lead to its excess making the other the limiting reactant, hence, it would not affect the yield of the product.

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After eliminating common terms, the net reaction occurs when we combine the reactions of an acid protonating water and its conjugate base deprotonating water is the autoionization of water.

The autoionization of water demonstrates that water can react with itself because acids and bases should interact with one another.

Here, the sound should be strange. Additionally, the water molecules should experience a small degree of proton exchange.

Thus, the correct option is c. The autoionization of water.

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The question is complete. Your complete question is given below:

a. The acid-base reaction between the acid and its conjugate base.

b. The synthesis of a complex between the acid and its conjugate base.

c. The autoionization of water.

d. None of the above.

The pH can be determined by the base dissociation constant value (Kb). The pH of the solution after 15 mL of ammonia is added to the solution will be 10.26.

The pH of the solution can be given by the pOH value that is determined by the concentration and the base dissociation constant.

The balanced chemical reaction is given as,

HCl + NH₃ → NH₄Cl

The moles before reaction was 0.015L× 0.15M =  0.00225 moles and, 0.025 L × 1.00 M = 0.025 moles

The moles after reaction are 0.00225 moles - 0.025 moles = 0.02275 moles

pOH is calculated as,

pOH = 4.74 + log ( 0.00225 ÷ 0.02275 )

= 3.73

Further pH is calculated as,

pH = 14 - 3.73

= 10.26

Therefore, 10.26 is the pH of the solution.

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A solution has a pOH of 7. 1 at 10∘c. Then the pH of the solution given that kw=2. 93×10−15 at this temperature is 7.4 .

It is given that,

pOH of solution = 7.1

Kw =2.93×10^(-15)

Firstly, we will calculate the value of pKw

The expression which we used to calculate the pKw is,

pKw=-log [Kw]

Now by putting the value of Kw in this expression,

pKw =−log{2.93×10^(-15)}

pKw =15log(2.93)

pKw=14.5

Now we have to calculate the pH of the solution.

As we know that,

pH+pOH=pKw

Now put all the given values in this formula,

pH+7.1=14.5

pH=7.4

Therefore, we find the value of pH of the solution is, 7.4.

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Answer:

B.) 0.316

Explanation:

To find the moles, you need to multiply the given value by the molar mass. The molar mass is made up of each element's atomic mass times their quantities. It is important to arrange the conversion in a way that allows for the cancellation of units.

Atomic Mass (S): 32.065 g/mol

Atomic Mass (O): 15.998 g/mol

Molar Mass (SO₃): 32.065 g/mol + 3(15.998 g/mol)

Molar Mass (SO₃): 80.059 g/mol

25.3 grams SO₃                1 mole
-------------------------  x  -------------------------  =  0.316 moles SO₃
                                    80.059 grams

18mL of a 16M H₂SO₄ solution is required to prepare.

Dilution is the process of lowering a solute's concentration in a solution. It usually just involves mixing the solution with more solvent, and much more water. A solution is diluted when more solvent is added without increasing solute. The final mixture is thoroughly mixed to make sure that every component is the same.

The formula for the dilution of a solution is

                                       M₁V₁ = M₂V₂

where,

M is molarity and V is the volume of the solution in liters.

Known,

M₁ = 16M = 16 mol/ L

M₂ = 0.15M = 0.15 mol / L

V₂ = 2.0 × [tex]10^3[/tex] ml

    = 2L

∴ [tex]V_1 =\frac{M_2 V_2}{M_1}[/tex]

  [tex]V_1 = \frac{0.15 * 2}{16}[/tex]

       [tex]= \frac{0.3}{16}[/tex]

       [tex]= 0.018 L[/tex]

  [tex]V_1 = 0.018L[/tex]  × [tex]1000 mL[/tex]

       [tex]= 18 mL[/tex]

Therefore, 18mL of a 16M H₂SO₄ solution is required to prepare.

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For breaking alkenes, liquid bromine was utilized. When liquid bromine is added to the finished product and it turns clear, it has reacted.

The principal test used to determine the organic compound's unsaturation in a qualitative examination of organic compounds is the bromine water test. It aids in determining the compound's functional group.

Unsaturated hydrocarbons and bromine water engage in an additional process. When the double bond breaks, bromine is added. The reaction's final result has no color.

However, there is no addition reaction when bromine water combines with saturated hydrocarbons. As a result, the solution's hue is unchanged and remains brown.

So, a qualitative test for saturated and unsaturated hydrocarbons is a reaction with liquid bromine.

The presence of unsaturated hydrocarbons, or functional groups with double bonds, can be seen in the mixture when it transforms into a clear

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The use of phenol (carbolic acid) as a surgical wound disinfectant was first practiced by Joseph Lister.

Joseph Lister was a surgeon, scientist, pathologist, etc. He was famous for the discovery of the prevention of infection in wounds. He first used phenol as a disinfectant agent for wounds.

Phenol is an inorganic compound, it is white crystalline and solid. It was used by Joseph Lister as an agent for a disinfectant agent. He discovered the safer medical procedure.

Thus, Joseph Lister was the first to utilize phenol (carbolic acid) to sterilize surgical wounds.

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The molecular of the compound will be-(H₂CO₃)1= H₂CO₃

The given molecule has the molecular formula H2CO3, also known as Carbonic acid.

Given that-

Consequently,

H= 3.3%.

C=19.3%

O =77.4%

Number of H moles = 3.3/1 = 3.3

Number of C moles = 19.3/12 = 1.60

Number of O moles = 77.4/16 = 4.83

As a result, the ratio of C, H, and O atoms is 3.3: 1.60: 4.83.

Divide by the amount you obtain that is the smallest: 3.3/1.60; 1.60/1.60; 4.83/1.60 = 2: 1: 3

H2CO3 is the empirical formula.

Let (H2CO3)n be the molecular formula.

A molecular formula is a chemical formula that specifies how many atoms of each element there are in each molecule of a given substance.

Molar mass thus equals (21+112+3X16)n = 62n.

As per the inquiry, 62n = 60

alternatively, n= 0.96 (round figure is 1)

Therefore, carbonic acid is the chemical whose molecular formula is (H2CO3)1=H2CO3.

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The pH of the solution is 12.88.

millimoles of NaOH = volume x Molarity

                                 = 24.00 mL x 0.25 M

                                 = 6.00 mmole

millimoles of HCl = 24.00 mL x 0.10 M

                            = 2.40 mmole

Total volume = 48.00 mL

                            NaOH + HCl   →     NaCl + H2O

initial                       6.00      0               0         0

added                                 2.40

change                   -2.40  -2.40      +2.40  +2.40

equilibrium               3.60    0           2.40    2.40

The pH is determined by the excess of NaOH present.

[NaOH] = millimoles/volume

            = 3.60/48.00

            = 0.075 M

pOH = -log (OH⁻).

        = -log (0.075)

        = 1.12

Then

pH + pOH = pKw = 14.00.

pH = 14 - pOH

pH = 14 - 1.12

pH = 12.88

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The nature of ions formed by different atoms is as follows:

Ions are substances which are formed when neutral atoms gain or lose electrons.

There are two types of ions based on the charge the ion carries;

The nature of the ions formed by different atoms depend on whether the atoms are atoms of metals or atoms of non-metals.

Metal atoms form positively-charged ions by the loss of one or more electrons as illustrated below:

where; M is a metal atom, M⁺ is a metal ion, and e⁻ is an electron.

Non-metal atoms form negatively-charged ions by the gain of one or more electrons as illustrated below:

where; N is a non-metal atom, N⁻ is a non-metal ion, and e⁻ is an electron.

In conclusion, the nature of ions formed by atoms depends on the nature of the atom, whether they are metallic or non-metallic atoms.

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Amide is produced when a 2° amine and an acid chloride combine.

Acid chloride: What is it?

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