Explain how this chemical equation demonstrates the Law of Conservation of Matter (Mass).​

We have a change of pressure and temperature. To solve and find the new pressure we will assume that the volume and moles of the gas remain constant, therefore we can apply Gay-Lussac's law which tells us:

Where,

P1 is the initial pressure of the gas, 954atm

T1 is the temperature of the gas, 728K

T2 is the final temperature, 951K

P2 is the final pressure, =?

We clear P2 and replace the known data:

Answer: The new pressure will be 1246atm

According to the concept of molar concentration, molarity of the solution is 1.525 M.

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.

In the given problem, by substituting values in mentioned formula related to moles we get,7.32/4.80=1.525 M.

Thus , the molarity of solution is 1.525 M.

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The jumbled word "gzeysktqix" can be unscrambled to form the word "skyzigtext."

Here are possible words that can be made from this jumbled word:

Sky: Referring to the atmosphere above the Earth.

Zig: Describing a series of sharp turns or angles.

Text: Referring to written or printed words.

Six: The number following five and preceding seven.

It seems that the jumbled word has provided a mix of letters that can be rearranged to form these words. This exercise is likely intended to enhance the student's vocabulary skills, spelling ability, and problem-solving skills. By unscrambling the letters, the student is encouraged to explore different word possibilities and apply their knowledge of language. It also promotes critical thinking and creativity as they find valid words from the given set of letters.

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Answer:c

Explanation:c

After the Punnett square has been drawn and the genotypes ratio is identified. The next step is to identify the Phenotypic ratio.

The Punnett square can be defined as a square diagram that is utilized to find the genotypes of a particular breeding experiment.  The diagram of the Punnet square can be used by biologists to determine the probability of an offspring having a definite genotype.

The Punnett square can be defined as a tabular summary of combinations of paternal alleles with maternal alleles. These tables can be used to find the genotypical probabilities of the offspring of a single trait.

The Punnett square is a visual representation in which Phenotypes can be predicted with at least better-than-chance accuracy. But the phenotype can appear for a given genotype and may be influenced by other factors.

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So, the mass of each metal in the 70.5 g mixture is: Magnesium: 39.1 g and Silver: 31.4 g.

A reaction, in chemistry, refers to a process in which one or more substances are transformed into new substances with different physical and/or chemical properties. Chemical reactions involve the breaking and forming of chemical bonds between atoms or molecules, resulting in the rearrangement of atoms to create new substances. In a chemical reaction, the reactants are the starting materials that undergo the chemical change, while the products are the substances that are formed as a result of the reaction. The chemical equation represents the reactants and products of a chemical reaction and is balanced to show the conservation of mass and the law of conservation of energy.

Here,

The balanced chemical equation for the reaction between magnesium and silver nitrate is:

Mg + 2AgNO3 → 2Ag + Mg(NO3)2

From the equation, we can see that 1 mole of magnesium reacts with 2 moles of silver nitrate to produce 2 moles of silver and 1 mole of magnesium nitrate.

First, we need to calculate how much silver was produced in the reaction. From the equation, we can see that 1 mole of magnesium produces 2 moles of silver, so:

1 mol Mg = 2 mol Ag

The molar mass of magnesium is 24.31 g/mol, so the number of moles of magnesium in the sample is:

=17.6 g Mg / 24.31 g/mol

= 0.724 mol Mg

Since 1 mole of magnesium produces 2 moles of silver, the number of moles of silver produced in the reaction is:

=0.724 mol Mg × 2 mol Ag / 1 mol Mg

= 1.448 mol Ag

The molar mass of silver is 107.87 g/mol, so the mass of silver produced in the reaction is:

=1.448 mol Ag × 107.87 g/mol

= 156.0 g Ag

Now, we can calculate the mass of magnesium that reacted in the reaction:

=17.6 g Mg × (156.0 g Ag / 70.5 g total metal)

= 39.1 g Mg

Therefore, the mass of silver in the 70.5 g mixture is:

=70.5 g total metal - 39.1 g Mg

= 31.4 g Ag

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Answer:

I think C

Explanation:

because hydrogen on the right side only have two while on the left side it have 4

Answer:

The answer is A. No Oxygen is Unbalanced

Explanation:

I took the test. You got this.

Answer:

Trigonal planar

Explanation:

If a hypothetical molecule XY3 has three electron domains as shown and no lone pairs, the molecule will be trigonal planar in shape.

From the valence shell electron pair repulsion theory, the shape of molecules is dependent on the number of electron domains in a molecule and weather those electron pairs are lone pairs or bond pairs.

Since lone pairs cause more repulsion and take up more space around the central atom than bond pairs, bond pairs cause the bond angle and molecular geometry to deviate from that predicted on the basis of the valence shell electron pair repulsion theory.

Finally, remember that in a molecule, electron pairs are placed as far apart in space as possible to minimize repulsion.

Answer:

122.768662

Explanation:

Answer:

something that can be maintained over a period of time

Answer:

a balance between meeting today's needs.......

Explanation:

To calculate the volume of 0.3000 M NaCl solution that is required to produce 0.1950 moles of NaCl, we can use the formula: moles = Molarity x Volume

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The numerical value of Kc for the given reaction, with the equilibrium mixture containing 0.0450 M PCl3, 0.116 M Cl2, and 25.8 M PCl5, is approximately 4942.03.

To calculate the numerical value of Kc for the given reaction, we need to set up an expression for the equilibrium constant using the concentrations of the species involved.

The balanced equation for the reaction is:

PCl3 (g) + Cl2 (g) ⇌ PCl5 (g)

The equilibrium constant expression, Kc, is given by:

Kc = [PCI5] / ([PCl3] * [Cl2])

Given the equilibrium concentrations:

[PCl3] = 0.0450 M

[Cl2] = 0.116 M

[PCI5] = 25.8 M

Substituting these values into the equilibrium constant expression, we have:

Kc = (25.8 M) / ((0.0450 M) * (0.116 M))

Calculating Kc:

Kc = 25.8 M / (0.00522 M^2)

Kc = 4942.03

Therefore, the numerical value of Kc for the given reaction, with the equilibrium mixture containing 0.0450 M PCl3, 0.116 M Cl2, and 25.8 M PCl5, is approximately 4942.03.

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The equation for the equilibrium constant (K) of the reaction studied in this exercise can be written as follows: K = ([\(CI_20\), 2-] * [\(H_20\)(1)]) / ([\(C0_4^ 2\)-] * [Ht])

In this equation, the concentrations of the species involved in the reaction are represented by the square brackets [ ]. The subscripts indicate the stoichiometric coefficients of each species in the balanced chemical equation.

The reaction being studied involves the following species:

\(C0_4^ 2\)- (ag) + 2Ht (ag) = \(CI_20\), 2- (ag) + \(H_20\)(1)

In the equilibrium constant expression, the concentration of \(CI_20\), 2- is multiplied by the concentration of \(H_20\)(1) and divided by the product of the concentrations of \(C0_4^ 2\)- and Ht. The stoichiometric coefficients in the balanced equation are used as exponents for the concentrations of the respective species.

It is important to note that the concentrations used in the equilibrium constant expression should be in molar units (mol/L) or expressed as partial pressures for gases.

Additionally, the equilibrium constant is specific to a given temperature, and its value provides information about the relative amounts of reactants and products at equilibrium.

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The time taken by the car driving at 10m/s to move 200m is 20 seconds. The speed of car is 10m/s. Thus option C is correct.

Speed is defined as a measurement of the length of time it takes for an object to travel a certain distance.

The SI unit of speed is m/s, and speed is defined as the ratio of distance to time.

A change in speed is an example of acceleration because it is a change in velocity. Acceleration could be for positive or negative. Deceleration is another name for negative acceleration.

There are four types of speed.

Speed can be expressed as

Speed = Distance / Time

Given, Distance = 200 m

           Time = 10 m/s

Speed = 200m / 10m/s

           = 20 seconds

Thus, the time taken by the car driving at 10m/s to move 200m is 20 seconds. The speed of car is 10m/s. Thus option C is correct.

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Answer:

A fly hits a windshield of a truck.

Explanation:

newton's first law

The object with more volume is the inflated balloon

Explanation:

Volume is about how much space an object or material occupies; in this context, if the inflated balloon has the double size of the bag of marbles then the balloon has more volume because this is occupying more space.

Moreover, the volume should not be confused with other factors such as mass or weight because it is likely the marbles weight more but this does not imply the marbles have more volume. Also, the balloon contains gas and gases tend to expand and occupy more space, which does not occur with solids such as marbles because these have a defined volume.

In redox reactions, an oxidation half reaction shows the oxusetoon occurring while the reduction half reaction shows the reduction occurring in the overall reaction.

Redox reactions are reactions in which oxidation and reduction reactions occur together to the same extent.

A redox reaction can be split into two half oxidation and reduction reactions.

The half reactions of the given reactions are shown below:

Overall reaction;

\(A. Mg(s) + CoBr_2(aq) ⟶ MgBr_2(aq) + Co(s) \\ \)

Oxidation half reaction:

\(Mg (s) ---> Mg ^{2+}(aq)\)

Reduction half reaction:

\(Co^{2+} (aq) ---> Co (s)\)

B. Overall reaction

\(Cu(s) + 2AuCl(aq) ⟶ CuCl_2(aq) + 2Au(s) \\ \)

Oxidation half reaction:

\(Cu(s) ---> Cu^{2+}(aq)\)

Reduction half reaction:

\(2Au^{+}(aq) ---> 2 Au (s)\)

Therefore, redox equations can be spilt into oxidation and reduction half reactions.

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Answer:

There are \(9\) electrons in this atom.

Explanation:

Electron configuration of this atom: \(1s^2\, 2s^2\, 2p^5\).

The electron orbitals of an atom are denoted as \(1s\), \(2s\), \(2p\), \(3s\), \(3p\), etc. At any given time, an electron in this atom is located in exactly one orbital.

The electron configuration of an atom gives the number of electrons in each orbitals of this atom.

For example, in this atom, the superscript "\(2\)" on the right of "\(1s\)" means that there are two electrons in the \(1s\!\) orbital of this atom. Hence, \(1s^2\, 2s^2\, 2p^5\) would translate to:

Hence, there would be \(2 + 2 + 5 = 9\) electrons in total in this atom.

Taking into account the definition of wavelength, frecuency and propagation speed, the correct answer is option A.: The frequency corresponding to an absorption line at 527 nm is 5.69×10¹⁴ Hz

Wavelength is the minimum distance between two successive points on the wave that are in the same state of vibration. It is expressed in units of length (m).

Frequency is the number of vibrations that occur in a unit of time. Its unit is s⁻¹ or hertz (Hz).

The propagation speed is the speed with which the wave propagates in the medium.

The propagation speed relate the wavelength (λ) and the frequency (f) inversely proportional using the following equation:

v = f×λ

All electromagnetic waves propagate in a vacuum at a constant speed of 3×10⁸ m/s, the speed of light.

In this case, you know:

Replacing in the definition of propagation speed:

3×10⁸ m/s= f× 527×10⁻⁹ m

Solving:

f= 3×10⁸ m/s ÷ 527×10⁻⁹ m

f= 5.69×10¹⁴ Hz

In summary, the correct answer is option A.: The frequency corresponding to an absorption line at 527 nm is 5.69×10¹⁴ Hz

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Answer:

0.005712

Explanation:

5.712 grams = 0.005712 kilograms

Answer:

It would be 0.005712

Explanation:

3 sigma and 3 pieee

okok kkk

The net ionic equation for the reaction between potassium sulfide and magnesium iodide is S2- + Mg2+ -> MgS, as the potassium and iodide ions are spectator ions and do not participate in the reaction.

To determine the net ionic equation for the reaction between potassium sulfide (K2S) and magnesium iodide (MgI2), we first need to identify the ions present in each compound and then determine the products formed when they react.

Potassium sulfide (K2S) dissociates into two potassium ions (K+) and one sulfide ion (S2-):

K2S -> 2K+ + S2-

Magnesium iodide (MgI2) dissociates into one magnesium ion (Mg2+) and two iodide ions (I-):

MgI2 -> Mg2+ + 2I-

Now, we need to determine the possible products when these ions combine. Since potassium (K+) has a +1 charge and iodide (I-) has a -1 charge, they can combine to form potassium iodide (KI):

K+ + I- -> KI

Similarly, magnesium (Mg2+) and sulfide (S2-) can combine to form magnesium sulfide (MgS):

Mg2+ + S2- -> MgS

Now, we can write the complete ionic equation by representing all the ions present before and after the reaction:

2K+ + S2- + Mg2+ + 2I- -> 2KI + MgS

To obtain the net ionic equation, we remove the spectator ions, which are the ions that appear on both sides of the equation and do not participate in the actual reaction. In this case, the spectator ions are the potassium ions (K+) and the iodide ions (I-).

Thus, the net ionic equation for the reaction between potassium sulfide and magnesium iodide is:

S2- + Mg2+ -> MgS

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The density of a substance (in g/dL) of a sample with a mass of 8.3 x 10-¹ dag and a volume of 4.10 mL is 202.44g/dL.

The density of a substance is the measure of the mass of matter contained by a unit volume.

The density of a substance can be calculated by dividing the mass of the substance by its volume.

According to this question, a substance with a mass of 8.3 x 10-¹ dag has a volume of 4.10 mL. The density can be calculated as follows:

Density = 8.3g ÷ 0.041dL

Density = 202.44g/dL

Therefore, the density of a substance (in g/dL) of a sample with a mass of 8.3 x 10-¹ dag and a volume of 4.10 mL is 202.44g/dL.

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Answer:

1.2029 J/g.°C

Explanation:

Given data:

Specific heat capacity of titanium = 0.523 J/g.°C

Specific heat capacity of 2.3 gram of titanium = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

1 g of titanium have 0.523 J/g.°C specific heat capacity

2.3  × 0.523 J/g.°C

1.2029 J/g.°C

Answer:

Depending on the actual amount of water, it's going to overfill.

Explanation:

If your watershed is already one that has a lot of water and is always filled, it's likely that your wetlands and rivers will start to overfill, causing a form of flooding.

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I hope this helps!

-No one

Volume of the balloon at 2.00 × 10⁴ m is 1.52x10³ L

Volume is the three dimensional qualities that is used to measure capacity of solid shape and atmospheric pressure is the air around you has weight and it weighs down everything it touches is called atmospheric pressure

Here given data is

Pi = 1.0 atmosphere = absolute atmospheric pressure

P f = 61.0 mm Hg = atmospheric pressure

= 61.0/760 atmosphere

=  0.0802 atmosphere

Vi =  171 L

T i = 20.0°C = 20+273 = 293 K

T f = 210 K

We have to find volume of the balloon at 2.00 ×10⁴ m =?

Then the formula is

Pi × Vi/T i = P f × V f/T f

1 atm×171 L/293 K = 0.0802× V f/210K

V f = 1.52x10³ L

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Answer:

  A. Energy is released

Explanation:

Energy is only released when chemical bonds are formed.

The empirical formula of the given compound is \(CaO\).

A chemical compound's empirical formula in chemistry is the simplest whole number ratio of atoms within a molecule.

Given:

Mass of Ca = 2.514g

Mass of O = 1.004g

Molar mass of Ca = 40.078g/mol

Molar mass of O = 15.999g/mol

To find:

Empirical formula = ?

Formula:

Empirical formula = Moles of Ca : Moles of O

Calculations:

No. of moles of Ca = 2.514 / 40.078

n of Ca = 0.06273 moles

No. of moles of O = 1.004 / 15.999

n of O = 0.06275 moles

Divide both by the lowest no. of moles

n of Ca : n of O = 1 : 1

Empirical formula = \(CaO\)

Result:

\(CaO\) is the empirical formula of the compound.

The complete question is:

In an experiment, a 2.514 g sample of calcium was heated in a pure stream of oxygen, and was found to increase in mass by 1.004 g. Calculate the empirical formula for the given compound.

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Answer:

The term colloidal suspension refers unambiguously to the overall mixture (although a narrower sense of the word suspension is distinguished from colloids by larger particle size). A colloid has a dispersed phase (the suspended particles) and a continuous phase (the medium of suspension).

Explanation: