this is math but they can't help you I understand here it's English if it's math help me with the procedure by putting the procedure

Length x width x height can define the volume of an object.

Volume can be defined as the space which is occupied by an object in space. It is also called the capacity of the object. The volume of an object also refers to the amount of space it fills. Very large Volumes can be measured in cubic meters (m3) while the other hand, while the Smaller volumes can be measured in cubic centimeters (cm3) as well as cubic millimeters (mm3). Volume has three dimensions i.e. length, width, and height whereas area has two dimensions i.e. length and width. We can calculate the volume of an object with the help of a formula i.e. Volume = length × width × height.

So we can conclude that volume of an object can be calculated with the help of the formula i.e. Volume = length × width × height.

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Answer:

C. trigonal Planar

Explanation:

Tetrahedral is 4 connected

Bent is 2 connected with a lone pair

Linear is 2 connected in a line

Trigonal Planar is the one with 3 connected.

Answer:

C: Trigonal Planar

Explanation:

Tetrahedral is four connected

Bent is 2 linked with a lone pair

Linear is two connected in a line

Trigonal Planar is the one with 3 connected.

A certain experiment had a yield of 79.0%, expressed as a percentage. This indicates that the amount of SF₆ that can be produced from a fluorine sample that is 7.90 grams is seven grams.

Sulfur A disparity agent, hexafluoride is an inorganic fluorinated inert gas composed of six fluoride atoms bonded to one sulfur atom. It has the potential to have diagnostic action when it is imaged.

Therefore, 7 grams of SF₆ can be produced from a fluorine sample.

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The solar panel would represent energy, so a solar panel would be one of them!

Studying cell illness models helps researchers better understand how diseases arise, which in turn helps them find novel molecular targets for particular therapeutics. Cell disease models can also be utilized to assess prospective therapeutic strategies. Thus, option C is correct.

The two-piece plant cell model depicts the normal plant cell's structures as seen through an electron microscope. The cytoplasm and all significant organelles are depicted in raised relief and colour on the plant cell. The plant cell model has the following features: cellular wall.

The process of generating a digital reproduction of each procedure, piece of machinery, and workflow within a plant is known as “plant modelling.”

Therefore, A solar panel would be one of them, since it would stand in for electricity.

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The densities of the substances are;

Aluminum bar = 2.6 g/ml

PE rod = 0.91 g/mL

Iron bolt =  5.65 g/mL

The term density is defined as the ratio of the mass to the volume of the object. We know that mass is an intrinsic property. This means that the density of the object can be used to identify what the object that is under study is. Let us now try to find the density of each of the objects.

In this case, we have the mass and the volumes of the objects as they have been shown in the table that have here. We can now be able to find the volume of each of the objects.

Density of aluminum bar = 39 g/ 15 g/mL = 2.6 g/ml

Density of the PE rod = 21 g/23 mL = 0.91 g/mL

Density of iron bolt = 39 g/6.9 mL = 5.65 g/mL

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Answer:

10 grams

Explanation:

The mass equals the density times the volume it displaces, so 5*2 = 10 grams. If you look at the units, you will see that they also cancel out.
you have 5 grams / ml, and 2 ml, so when 5 grams/ml and 2 ml are multiplied, the result is 10 grams*ml/ml, and since ml/ml = 1, the final unit of the answer would be 10 grams.

According to the given statement The density of the element is 6.82 g/ml.

Density is the measure of how firmly a material is packed. It has such definition since it is the mass per unit volume. Numeral for density D or The formula for calculating density is m/V, where m is the mass and V is the volume of the object.

Grams per cubic centimeter are indeed a typical measurement unit for density. For example, while Earth has a density of up to 6.5 grams, water has a density of 1 grams per cubic centimeter. Another method to state density is in kilograms per cubic meters (in metre-kilogram-second or SI units).

Mass of solid (M)= 10.23g

Initial volume of water V[tex]_1[/tex] = 20 ml

Final volume of water V[tex]_2[/tex] = 21.5 ml

Volume of solid (V) = V[tex]_2[/tex]– V[tex]_1[/tex]

= 21.5 - 20

= 1.5 ml

Density of element (D) = M / V

= 10.23g / 1.5 ml

= 6.82 g/ml.

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E is standard the electrode potential of a reaction, increasing the value of K will Increase the forward reaction.

A measure of the reducing power of an element or compound. The IUPAC Gold Book defines it as Split the reaction into two half-reactions. where n is two. The following example shows how to use the Nernst equation to calculate the potential of an electrochemical cell under non-standard conditions.

If both half-reactions have different numbers of electrons multiply both equations by the appropriate number so that n is the same in both equations, then use this value of n in the equations before generating electricity. increase. The energy used is released during spontaneous chemical reactions. When the applied external potential is greater than the Ecell of the electrochemical cell, the reaction is reversed. It started working as an electrolytic cell and vice versa.

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Answer: The answer is 40.078

Explanation: Ezzy

Answer:

mol CCl4 = 1.294 mol

Explanation:

moles (n) = (mass)/(molar mass)

∴ mass = 199 g CCl4

∴ molar mass = 153.82 g/mol

⇒ nCCl4 =  199 gCCl4 / 153.82 g/mol

⇒ nCCl4 = 1.294 mol CCl4

If scientists could produce element 120, its reactivity will be high as a result if the number of valence electrons present in its outermost shell.

This refers to a type of substance which can't be broken down into simpler substances by a chemical reaction and an example is Sodium.

In the case of element 120 if produced will belong to alkaline earth metals which have a valence electron of 2. This means that it needs to donate only two electrons to achieve a stable configuration which is therefore the reason why it will be highly reactive.

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The pressure of the Moxie's tank in the summer will be 110.5 atm.

The pressure law states that  for a given mass a gas, the pressure exerted on the sides of its container is directly proportional to its absolute temperature provided the volume is constant.

Mathematically, this law can be written as;

P₁/T₁ = P₂/T₂

where;

From formula above, as the temperature of the gas increases, its pressure increases as well.

Thus, the pressure that will be observed in the Moxie's tank during the summer will be greater than 50 atm since the temperature in summer is greater than the temperature in winter.

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The complete question is below:

If the Moxie's tank has an initial pressure of 50 atm in the winter, what will be * 1 point

the pressure in the summer?

A. 5.88 atm

B. 22.6 atm

C. 110.5 atm

The rate of reaction r is measured by the amount of gas produced at a 10-second interval.

in this reaction magnesium and acids are gradually used up. however acid is in excess so it is mainly a loss of magnesium. that causes a change in the rate.

if the graph of the axis is in y and time in the x-axis. this shows this reaction fastest at the beginning. as the magnesium is used up the rate falls. when the reaction has stopped no more gas is produced.

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The correct answer is option C: Evaporation

Wrapping a hot potato in aluminum foil significantly reduces the rate at which it cools by evaporation.

It is because, the aluminum foil serves as a reflector of infrared radiations or IR radiations.

The surface of the aluminum foil reflects back the radiations and does not allow them to escape to the surrounding.

Thus, in this way, the potato, wrapped in the foil, cools down at a slow rate as the radiation are trapped inside it and keep the potato warm and hot for a longer time period.

On the contrary, if the radiations were to escape, then the potato would cool down rapidly by evaporation.

Evaporation refers to the transformation of a matter from one phase to another i.e. from hot to cool phase, thereby, the reflection of radiations does not let the potato cool over time.

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Answer:

2 molecules

Explanation:

thete are 2 moleculed in 2NH3

Answer:

1.39 x 10^25 atoms

Explanation:

12 amu of C has 6.02 x 10^23 atoms

so 276.23 amu has

(276.23)(6.02 x 10^23)/(12) = 1.39 x 10^25 atoms

Answer:

True

Explanation:

A balanced chemical equation always obeys the law of conservation of mass. According to this law, the mass of products must be equal to the mass of reactants. A reaction is said to be balanced when the total mass of atoms on both sides of the chemical reaction is equal.

The concentration of each substance  in mg/L are;

Zinc -  9.8 * 10^-4 mg/L

Copper - 1.1 * 10^-4 mg/L

Lead - 4.7 * 10^-3 mg/L

Mercury - 2.5 * 10^-4 mg/L

Let us recall that the term that is called concentration is used to describe the amount of substances that is present. Thus, there are several units of concentration that are in common use to day and these include;

In this case we are asked to convert the concentration of the object as it has been given in mM to mg/L as we can see above in the question.

We have that;

RMM mg/L = 1mM

Let us now convert each one;

Zinc = 1/65 * 6.42 × 10^–2 mm

= 9.8 * 10^-4 mg/L

Copper = 1/63.5 * 7.16 × 10–3 mm

= 1.1 * 10^-4 mg/L

Lead  = 1/207 *  0.965 mm = 4.7 * 10^-3 mg/L

Mercury = 1/201 *  5.00 × 10–2 mm = 2.5 * 10^-4 mg/L

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Based on the initial and final volume of solution in each pipette, pipette A shows that 4 mL of the liquid has been dispensed.

A pipette is a lab apparatus that is used for dispensing liquids.

The volume of the liquid dispensed from the pipette is obtained bt subtraction of the initial volume of solution from the final volume of solution in the pipette.

Comparing the volume of solution dispensed from each pipette:

Volume dispensed from pipette A = 9 mL - 5 mL

Volume dispensed from pipette A = 4 mL

Volume dispensed from pipette B = 9 mL - 4 mL

Volume dispensed from pipette A = 5 mL

Therefore, the volume of solution dispensed from each pipette is as calculated above.

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The Xenon gas sample will have the volume of  4.54L at the temp of 247.26 k.

When pressure is constant, a gas's volume and temperature are directly proportional.

When pressure is constant, the volume to temperature ratio remains constant.

The term "Charles' law" or "Gay-Lussac's law" refers to this relationship.

Isobaric processes are those that operate at constant pressure.

V ∝ T (P constant)

V1/T1 = V2/T2 = constant

Here,

V1= 7.72l

T1 = 421k

V2 = 4.54l

T2 = ?

7.72/421 = 4.54/T2

7.72 × T2 = 4.54 × 421

T2 = 4.54 × 421

            7.72

T2 = 247.26 k

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The selection of hydroboration-oxidation reagents to carry out the transformation was made for the following reasons:

Reagents for oxymercuration and demarcation produce the Markovnikov product.

The anti-Markovnikov product of addition is produced by reagents for hydroboration oxidation.

Anti-Markovnikov product without sigmatropic rearrangement is necessary for the reaction.

Acid and water are added to produce the Markovnikov product.

The formation of alcohol depends on the process of hydroboration-oxidation, it should be mentioned. Instead of employing other reagents, it is required for the transformation because hydroboration-oxidation reagents produce the anti-Markovnikov product of addition.

The conversion of alkenes into neutral alcohols is accomplished through the organic chemical reaction known as hydroboration oxidation. This is accomplished via a two-stage procedure that entails both an oxidation and a hydroboration step. An addition is made as a net result.

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The frequency of photon is 2.04 × [tex]10^{15}[/tex] Hz.

E = h × f

Here, E = energy,  given = 8.42 eV = 8.42 × 1.6 ×[tex]10^{-19}[/tex] J = 1.35 × [tex]10^{-18}[/tex] J

h = plank's constant = 6.626 × [tex]10^{-34}[/tex] Js

f = frequency

So, f = E/h

f = 1.35 × [tex]10^{-18}[/tex] J/6.626 × [tex]10^{-34}[/tex] Js

f = 2.04 × [tex]10^{15}[/tex] Hz

Hence, the frequency of photon is 2.04 × [tex]10^{15}[/tex] Hz.

Frequency is the quantity of occurrences of a repeating occasion in line with unit of time. it is also every now and then known as temporal frequency to emphasize the comparison to spatial frequency, and regular frequency to emphasize the assessment to angular frequency.

The variety of periods or cycles according to second is called frequency. The SI unit for frequency is the hertz (Hz). One hertz is similar to one cycle consistent with second.

Frequency is an critical parameter used in technology and engineering to specify the temporal charge of alternate observed in oscillatory and periodic phenomena, which include mechanical vibrations, audio alerts, radio waves, and light.

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Who evolved the expression for the broad spectrum of hydrogen to encompass lines within the ultraviolet and infrared portions of the electromagnetic spectrum : Johannes Rydberg

Electromagnetic Spectrum: The electromagnetic (EM) spectrum is the range of all varieties of EM radiation. Radiation is the power that travels and spreads out because it is going – the visible light that comes from a lamp in your own home and the radio waves that come from a radio station are styles of electromagnetic radiation. Scientists name them all electromagnetic radiation. The waves of energy are known as electromagnetic (EM) due to the fact they've oscillated in electric-powered and magnetic fields. Scientists classify them through their frequency or wavelength, going from high to low frequency (quick to long wavelength).

The electromagnetic spectrum observed over a century ago is the idea behind our universe(Opens in a new tab). Without it we would not be able to see, the stars would not shine, and existence would not exist. It is one of the most important concepts that govern everything around us. Electromagnetic radiation occurs whenever a charged particle changes speed with an electron, i.e., increases or slows significantly. The power of the generated electromagnetic radiation comes from charged particles and is therefore lost with use.

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The difference between strong electrolytes (se), weak electrolytes (we), and nonelectrolytes (ne).

A solution or solute that totally, or nearly completely, ionizes or dissociates in a solution is referred to as a strong electrolyte.

In the solution, these ions act as effective conductors of electric current. A substance that is a good conductor of electricity while in aqueous solution was the original definition of a "strong electrolyte."

A solution is considered to be a weak electrolyte if only a small percentage of the dissolved solute is present as ions. An equilibrium between the reactants and products is depicted by a double arrow in the equation for the ionization of a weak electrolyte.

Strong electrolytes totally ionize (100%), whereas weak electrolytes only partially ionize (often between 1 and 10%). In other words, whereas for weak electrolytes, the main species in solution is the unionized molecule itself, ions are the main species in solution for strong electrolytes.

A substance is referred to as a nonelectrolyte if it doesn't conduct electricity in either the molten or watery form. Many molecules, including ethanol and sugar, are nonelectrolytes. These substances do not release ions when they dissolve in water.

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Answer:

nooooooooooooooooooooiooooooooob

Answer:

Ans is HCL as :

it reacts with limewater to produce bubbles of gas(CaCo3+2HCL -----> Cacl2+H20+Co2)

It is an acid so it turns blue litmus paper to red

When zinc reacts with hydrochloric acid, the reaction bubbles vigorously as hydrogen gas is produced. When hydrogen is near fire it burns with pop sound

It should also be noted that HCL is colorless

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The unit of both types of energy is the joule (kg × m² × s⁻²).

Show the units of kinetic energy

The equation for kinetic energy is/2 × m × v²

[K] = kg × (m/s)²

[K] = kg × m² × s⁻² = J

Show units of gravitational potential energy

The formula for the potential energy of gravity is: g × h

[G] = kg × m/s² × m

[G] = kg × m² × s⁻² = J.

Gravitational potential energy is the energy stored in an object due to its height above the ground. This depends on the mass of the object, the acceleration due to gravity, and the height of the object. Kinetic energy is the energy that an object has when it moves. One of the most important similarities between potential energy and kinetic energy is that they can be converted into each other's energy forms. When a force is applied to potential energy, it is converted into kinetic energy.

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Two quantities in the ideal gas equation that are directly proportional are Pressure and Temperature

In ideal gas law, PV = nRT

A quantity can be directly or indirectly proportional to each other. In case of directly proportional, if one quantity increases other would also increases and vice versa. In the case of indirectly proportional, the opposite happens i.e., increase in one quantity would result in decrease of another.

As we can see in the ideal gas law, increase in pressure (P) would increase number of moles (n) and Temperature (T). Similarly, increase in volume (V) would also increase number of moles (n) and Temperature (T).

If the law was rearranged, we can observe that increase in pressure would decrease the volume and vice versa.

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The statement that accurately contrast a compound and a mixture is; Mixtures contain two or more elements physically combined and compounds contain two or more elements chemically combined.

The term mixture has to do with a combination of two or more substances that are not chemically combined hence they can easily be separated by the use of physical methods. Hence they are not in any way compounds.

A compound is a substance that has been formed by the chemical combination of the atoms of elements. This implies that the components of a compound can not be separated by physical methods.

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Answer:

2.75 x 10^24 atoms

Explanation:

1 mole = 6.022 x 10^23 atoms

4.56 moles has:

4.56 x 6.022 x 10^23 = 2.75 x 10^24 atoms

Answer: Lower Left!

Explanation: I just took the quiz.