Can grasshoppers fly?

Explanation

Given:

ΔG° = 13.8 kJ/mol = (13.8 x 1000) J/mol = 13800 J/mol

Temperature, T = 25.0°C. = 25.0°C + 273 = 298.0 K

What to find:

the value of the equilibrium constant, K for the reaction at 25.0°C.

Step-by-step solution:

Both K and ΔG° can be used to predict the ratio of products to reactants at equilibrium for a given reaction.

ΔG° is related to K by the equation ΔG°= −RTlnK.

R is the molar gas constant, ( R = 8.3144598 J/K/mol)

If ΔG° < 0, then K > 1, and products are favored over reactants at equilibrium.

The next step is to substitute the values of ΔG° and T into the equation to get K.

ΔG°= −RTlnK

13800 J/mol = -(8.3144598 J/K/mol x 298 K x lnK)

13800 J/mol = -(2477.70902 J/mol x lnK)

Divide both sides by 2477.70902 J/mol

Answer:

the frequency is 18

Explanation:

please mark me as the branlest hope it helps please

Answer:

The process in which we breathe out carbon dioxide and breathe in oxygen.

Explanation:

The coefficients of the balanced equation, written as stated as 6:1:3:2 the reaction of water with the by-product magnesium nitride to produce ammonia and magnesium hydroxide.

The balanced equation for this response is: Mg3N2 (s) +6H20 (1)>3Mg(OH)2 (aq) +2NH3 (aq) If three moles of magnesium nitride react, The response consumes The response produces moles of water moles of magnesium hydroxide and moles of ammonia.

The balanced equation is Mg3N2 (s) +6H20 (1)>3Mg(OH)2 (aq) +2NH3 (aq) is  6:1:3:2 the reaction.

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Answer:

1120 mm Hg

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Answer:

pls help

Explanation:

Answer:

1. 1 mole of NaCl.

2. 1 mole of H₂O.

Explanation:

The balanced equation for the reaction is given below:

HCl + NaOH —> NaCl + H₂O

From the balanced equation above,

1 mole of HCl reacted with 1 mole of NaOH to produce 1 mole of NaCl and 1 mole of H₂O.

Next, we shall determine the limiting reactant. This can be obtained as follow:

From the balanced equation above, we can see that 1 mole of HCl reacted completely with 1 mole of NaOH. Therefore, HCl is the limiting reactant and NaOH is the excess reactant since we have 3.6 moles of NaOH.

1. Determination of the amount of NaCl produced from the reaction.

NOTE: The limiting reactant is used to determine the maximum amount produced since all of it is consumed in the reaction.

The limiting reactant is HCl and the amount of NaCl produced can be obtained as follow:

From the balanced equation above, we can see that 1 mole of HCl reacted to 1 mole of NaCl.

Thus, 1 mole of NaCl was produced.

2. Determination of the amount of H₂O produced from the reaction.

From the balanced equation above, it is evident that 1 mole of HCl reacted to produce 1 mole of H₂O.

Thus, 1 mole of H₂O was produced.

word equation: HCl + barium --> barium chloride + hydrogen

formula equation: 2HCl + Ba --> BaCl2 + H2

given: 1.25×10^23 molecules HCl

Find: g BaCl2

given#moleculesSubA × 1molSubA/6.022×10^23 moleculeSubA × #molSubB/#molSubA × g SubB/1molSubB

The mass of barium chloride produced is 21.6 grams.

It is an inorganic compound with the chemical formula BaCl₂.

The equation: HCl + barium --> barium chloride + hydrogen

The  chemical equation : 2HCl + Ba --> BaCl₂ + H₂

Given the  1.25×10²³ molecules HCl

First, we calculate the amount of HCL

Amount of moles of HCl=

(1.25×10²³ molecules × 1 mole)/ 6.023×10²³ atoms

=0.2075 moles.

Then the number of moles is multiplied by the molar mass of barium chloride

208.24 g/mol × 0.2075 = 21.6 grams.

Thus, the mass of barium chloride produced is 21.6 grams.

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Answer: Helium is an type of air that can be used to inflate balloons, balls,  and other things that require air. The carbon dioxide we breath out is similar to this helium.

Hope this helps!

Answer:

6.22 mol

Explanation:

I think so but I don't know just yet

sorry if im wrong

1. Al₂O₃ is ionic.

2. SnO₂ is molecular.

3. CO₂ is molecular.

4. H₂O is molecular.

5. Fe₂O₃ is ionic.

6. Li₂O is ionic

The following oxides is ionic or molecular:

1. Al₂O₃ (aluminum oxide) is ionic because it is formed by a metal (Al) and a non-metal (O).

2. SnO₂ (tin oxide) is molecular, as it consists of a metal (Sn) and a non-metal (O).

3. CO₂ (carbon dioxide) is molecular since it is composed of two non-metals (C and O).

4. H₂O (water) is molecular as it is formed by two non-metals (H and O).

5. Fe₂O₃ (iron oxide) is ionic because it contains a metal (Fe) and a non-metal (O).

6. Li₂O (lithium oxide) is ionic as it is composed of a metal (Li) and a non-metal (O).

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Answer:

nucleotides

Explanation:

The four types of nitrogen bases found in nucleotides are: adenine (A), thymine (T), guanine (G) and cytosine (C). The order, or sequence, of these bases determines what biological instructions are contained in a strand of DNA. ... DNA is made of chemical building blocks called nucleotides.

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In the image that has been shown here, it is clear that magnesium is coordinated to the organic groups in chlorophyll.

Chlorophyll comes in a variety of forms, but the two that are most prevalent and plentiful in plants are chlorophyll-a and chlorophyll-b. Although these two varieties perform similarly, their chemical structures are slightly different. In the electromagnetic spectrum, they typically absorb blue and red light, reflecting or transmitting green light, which gives plants their distinctive green hue.

The magnesium ion in the middle of the porphyrin ring structure that makes up the chlorophyll molecule. The light energy is captured by this ring arrangement. The hydrocarbon side chains that are attached to the porphyrin ring give the molecule its structural stability.

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Answer:

Explanationconvection

:

In calorimetry, energy is measured through heat transfer from one substance to another. Convection is not the method of heat transfer.

A calorimeter is a device used to measure the amount of heat involved in a chemical or physical process.

For example, when an exothermic reaction occurs in solution in a calorimeter, the heat produced by the reaction is absorbed by the solution, which increases its temperature.

One technique we can use to measure the amount of heat involved in a chemical or physical process is known as calorimetry.

Calorimetry is used to measure amounts of heat transferred to or from a substance.

To do so, the heat is exchanged with a calibrated object (calorimeter).

Heat loss due to conduction is prevented by placing the calorimeter box in a well-lagged vessel using wool or cork material.

Heat loss due to convection is prevented by placing a lid on the box.

Heat loss due to radiation is minimized by polishing the box in order to smoothen it.

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Explanation:

Fluorine: F-

Aluminium: Al3+

Bromine: Br-

3F2 + 2AlBr3 => 3Br2 + 2AlF3

The balanced equation for the given chemical reaction can be given as

3F\(_2\) + 2AlBr\(_3\) \(\rightarrow\) 3Br\(_2\) + 2AlF\(_3\)

An equation for just a chemical reaction is said to be balanced if both the reactants as well as the products have the same number of atoms and total charge for each component of the reaction. In other words, both sides of both the reaction have an equal balance of mass and charge.

The products and reactants of a chemical reaction are listed in an imbalanced chemical equation, but the amounts necessary to meet the conservation of mass are not specified.

The balanced equation for the given chemical reaction can be given as

3F\(_2\) + 2AlBr\(_3\) \(\rightarrow\) 3Br\(_2\) + 2AlF\(_3\)

Therefore, the balanced equation for the given chemical reaction can be given as

3F\(_2\) + 2AlBr\(_3\) \(\rightarrow\) 3Br\(_2\) + 2AlF\(_3\)

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Explanation:

Thermosetting plastic are made up of long chain of molecules which are cross-linked and can be moulded into different shape and size.

Answer:

Hey!

THERMOSETTING PLASTICS are plastics or polymers that become IRREVESIBLY SET/RIGID when it has been heated and cooled...

Explanation:

This means that if you heat up a thermosetting plastic, you only have one chance to mould it or shape it before it cools down...if not you cannot correct this and will have to start again! Which WILL be sad!

AKA : THERMOSET

HOPE THIS HELPS!!

To convert minutes to hours we divide the minutes by 60. So if we divide 3 by 60 we get 0.05 hours.

We know that in hour, there are 60 minutes so if we go from minutes to hours then we have to divide the number by 60 and when we go from hours to minutes we multiply with the same 60 number.

So we can conclude that to convert minutes to hours we divide the minutes by 60. So if we divide 3 by 60 we get 0.05 hours.

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Large, raw chunks of meat known as primal cuts are often removed from an animal's carcass during butchering. Food service establishments that need a lot of meat for their menu items, such restaurants, caterers, and other commercial kitchens, typically acquire these cuts.

Primal cuts are beneficial to buy for restaurants that provide a lot of meat-based dishes including steaks, roasts, and stews. Purchasing larger pieces of meat enables the kitchen staff to portion and cut the meat as required for particular dishes or menu items, resulting in cost savings and giving the chef more freedom to arrange the menu.

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Answer:

5.449 x 10¹⁸ Hz

Explanation:

Energy (E) =Frequency (F) x Plancks constant (h)

F= 3.611x10⁻¹⁵J / 6.626 x 10⁻³⁴ Js⁻¹

F =5.449 x10¹⁸ s⁻¹ or 5.449 x 10¹⁸ Hz

Answer:

35.5 this is the answer ok

Answer:

A= 2.3g

B= 1.2L

Explanation:

a) Find the mass of the reacted metal

2Na    +     Cl2     →    2NaCl

46               71                 117

X                                   5.85

From the chemical equation

117/5.85 = 46/x

X= (46x5.85)/117

 = 2.3g

So, the mass of the reacted metal is 2.3g

b) Find the volume of the reacted gas at STP

at STP: 71g of CL2 has 22.4l

              Y  of Cl2 has V

V= (Y x 22.4L) / 71                   where y=?

From the chemical equation

117 / 5.85 = 71 / Y

Y= (71x5.85) / 117

  = 3.55

V= (3.55x22.4) / 71

 = 1.12L

So, the volume of the reacted gas at STP is 1.12L

The term porosity describes how much of a rock consists of open pore spaces, while permeability describes how well-connected pore spaces allow gases and liquids to flow through the rock.

Porosity is the percentage of pore space in a rock to its overall volume, and it is defined as the total amount of void space in a rock divided by its overall volume. Porosity is represented as a percentage, and it indicates the rock's ability to hold fluids, including oil and gas. This refers to the fraction of the rock that is voids.

It's a physical property of sedimentary rocks that relies on the pore space between the particles.

Permeability refers to the ability of a rock to transmit fluids, typically water or hydrocarbons. It's determined by the number and size of open pore spaces and how well-connected they are in the rock. Permeability is affected by the orientation of the pore spaces and the shape of the rock particles.

The permeability of a rock is also influenced by how well the pore spaces are interconnected, with well-connected pores increasing permeability. It is a measure of a rock's ability to transmit fluids such as oil, water, or gas.

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The skeletal line-bond structure of (r)-1-ethyl-3-ethynyl-cyclohex-1-ene is as follows:

A disubstituted cyclohexene molecule contains an ethyl group on C1 and an ethynyl group on C3.

To represent the dash or wedge bond structure we have to first identify the asymmetric centers in the molecule.

An organic compound's skeletal structure was made up of a group of atoms that also are joined together to form the compound's fundamental structure. Chains, branches, and/or rings of bound atoms can make up the skeleton. Heteroatoms were skeletal atoms that are not carbon as well as hydrogen.

The asymmetric center in the cyclohexene molecule is C-3 in the cyclohexene so the dash and wedge structure can also be shown as follows:

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7.20 moles of NaBH₄ requires 3.60 moles of benzil in the synthesis of meso-hydrobenzoin. To answer this question, we first need to write the balanced chemical equation for the reduction of benzil using NaBH₄:

C₆H₅C(O)C(O)C₆H₅ + 2 NaBH₄ → C₆H₅C(OH)C(O)C₆H₅ + 2 NaBO₂ + 2 H₂

From this equation, we can see that each mole of benzil reacts with 2 moles of NaBH₄. Therefore, to determine how many moles of benzil are necessary to completely react with 7.20 moles of NaBH₄, we simply divide 7.20 by 2:
7.20 moles NaBH₄ / 2 moles NaBH₄ per mole of benzil = 3.60 moles benzil

So an explanation of the answer is that since each mole of benzil reacts with 2 moles of NaBH₄, we need to divide the total number of moles of NaBH₄ by 2 to determine the number of moles of benzil necessary for complete reaction. Therefore, 7.20 moles of NaBH₄ requires 3.60 moles of benzil.

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The density of the metal is 2.7 g/cm³, which can be used to identify the metal since different elements have different densities.

The given mass of the metal is 27g and its volume is 10 cm³.

The identity of the metal can be found out by using the formula of density, which is Density = Mass/Volume.

Density is a physical property of matter that is the amount of mass per unit volume. By rearranging the formula of density, we can determine the identity of the metal by finding its density which is given by mass divided by volume.

Identity of a metal that has a mass of 27g and a volume of 10 cm³ can be determined by using the formula of density which is Density = Mass/Volume.  

Here is the solution:Given,Mass of the metal = 27gVolume of the metal = 10 cm³

Density of the metal is given by the formula:Density = Mass/Volume

Substituting the given values in the formula:Density = 27g/10 cm³ = 2.7 g/cm³

The periodic table can be used to match the density with known elements and thus determine the identity of the metal.

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