What causes the release of energy in an exothermic reaction? Bonds breaking Bonds breaking A catalyst A catalyst Bonds being formed Bonds being formed Electrons escaping the bond

Yes, fruit juice react with metal.

Describe a metal.

Hard, lustrous, malleable, fusible, and ductile are all characteristics of metal, a solid material that conducts heat and electricity. The materials that have a propensity to donate electrons are metals.

An extremely active metal is aluminum. It develops a thin layer of aluminum oxide tarnish right away. The water stops the aluminum's reaction with the tarnish because it is mostly waterproof, but orange juice, which contains a moderate acid, can dissolve the tarnish and keep the aluminum's reaction with the liquid going.

Therefore, fruit juice react with metal.

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Simply put, as the amount of carbon dioxide in a tight space increases, it substitutes for such oxygen your body requires to survive.

A significant amount can replace oxygen in the atmosphere.Reduced oxygen availability can cause symptoms like weariness, emotional instability, clumsiness, fast breathing, and rapid heart rate.

An American Conference on Governmental Industrial Dentists (ACGIH) suggests a TWA Threshold Limit Values (TLV) of 5,000 ppm for 8 hours and a 10-minute ceiling exposure limit of 30,000 ppm.40,000 is seen as being instantly threatening to one's health and life (IDLH value).

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939.067MeV is the energy required to extract a proton from a nucleus.

△m= mass of nucleus − mass of proton

= (mass of neutron + mass of proton) - mass of proton

= mass of neutron

= 1.008665amu

E=1.008665 X 931=939.067MeV

After absorbing a neutron, heavy nuclei can occasionally decay and turn into radioactive nuclei. A proton would ultimately be lost, along with perhaps one or two neutrons.

For C12 and C13, the binding energy per nucleon is 7.68 MeV and 7.47 MeV, respectively. The power needed to take a neutron out of C13 is Not to worry! Our team has your back.

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The mass of a sample of copper (II) sulfate containing 2.56 x [tex]10^{23[/tex] atoms of copper would be 27.52 grams.

According to Avogadro, 1 mole of every substance contains 6.022 x [tex]10^{23[/tex] molecules or atoms of the substance.

Following this principle, the amount, in moles. of copper (II) sulfate present in 2.56 x [tex]10^{23[/tex] atoms of the substance would be:

6.022 x [tex]10^{23[/tex]  atoms = 1 mole

2.56 x [tex]10^{23[/tex] atoms = 2.56 x [tex]10^{23[/tex] /6.022 x [tex]10^{23[/tex]

                             = 0.43 mol

Recall that: mass = mole x molar mass

Mass of 0.43 mol copper = 0.43 x 64

                                          = 27.52 grams.

In other words, a sample of copper (II) sulfate containing 2.56 x [tex]10^{23[/tex] atoms of copper will contain 27.52 grams of copper.

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[tex]IBr^{-}_{2}[/tex] has 3 pairs of non-bonding electrons as shown in the picture.

[tex]IBr^{-}_{2}[/tex] has a linear structure and includes three lone pairs of electrons in an equatorial location. This decreases the lone pair repulsions, and the two bromine atoms are in an axial position. Therefore, the structure  [tex]IBr^{-}_{2}[/tex] has a linear organization. [tex]IBr^{-}_{2}[/tex] has an iodine atom that possesses two bond pairs as well as three lone pairs of electrons. Both bond pairings are formed using atoms containing two bromines.

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Get medical attention as soon as possible. If a person breathes large amounts of this chemical, move the exposed person to fresh air at once. Other measures are usually unnecessary.

If a shower is available, take off any contaminated clothing or jewellery and rinse the chemicals off for least 20 minutes.Avoid getting chemicals in your eyes.Dress the burn.Apply a fresh bandage to the burn.

A poisonous substance can have both immediate and long-term impacts on your health.Acute (short-term) effects manifest immediately or shortly after chemical exposure.

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Apollo boasted to Cupid about how much larger his bow was. Apollo was offended, and Cupid hit him with a golden love arrow in retaliation, leading him to fall in love with the first person he saw.

Apollo had cracked far too many jokes about Eros. Eros shot Apollo with one of his golden arrows as a kind of retribution, which caused Apollo to fall hopelessly in love with the nymph Daphne.

The next action taken by Cupid was something Apollo did not anticipate. The god of love flapped his wings as he soared alongside the god of music. Then, with a "golden arrow with a keen gleaming point," he shot him in the chest.

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(B)  6 ơ and 3 bonds are there in acrylonitrile

The organic compound acrylonitrile has the formula CH2CHCN and the structure H2C=CHCN. Although commercial samples can be yellow due to impurities, it is a colorless, volatile liquid. It smells strongly like garlic or onions. It has a vinyl group connected to a nitrile as its basic building block at the molecular level.

Any chemical compound that has carbon-hydrogen or carbon-carbon bonds is considered an organic substance in chemistry. Millions of organic compounds have been identified because of carbon's capacity for catenation.

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The correct option is O calcium

What are all the products created when the hydronium ion and limestone (CaCO3) react? In water, hydrogen ions interact with limestone (CaCO 3). Water always contains them since it goes through autoprotolysis: H + (aq) + OH - = H 2 O (l) (aq) Limestone will react and erode more readily the more acidic the water is.

When limestone is heated (calcined), it produces carbon dioxide and calcium oxide (quick lime). When this CaO, or calcium oxide, is combined with water, lime water (or calcium hydroxide), which releases heat, results. An EXOTHERMIC REACTION has occurred. When limestone and water are together, nothing happens. How does calcite purify water?

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The concentration of hydrogen ions inside the intermembrane space is higher than within the matrix as a result of the pumping by hydrogen ions through the innermost membrane.

The area between two or maybe more membranes would be known as the intermembrane gap.

The matrix is much less acidic than that of the intermembrane gap. H+ is transferred from of the matrix towards the intermembrane space through the electron transport chain.

Lipid molecules form a double layer that makes up biological membranes.

The term "molecule" refers to a grouping of two as well as more elements.

MgO, for instance, would be a molecule with the chemical composition 1 atom of magnesium and 1 atom of oxygen.

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According to VSEPR theory, bent molecular geometry can be formed by all given option choices except  trigonal planar electron group geometry with 0 lone pairs and 3 bonding groups  as lone pair cause  bending in molecules.

Molecular geometry can be defined as a three -dimensional arrangement of atoms which constitute the molecule.It includes parameters like bond length,bond angle and torsional angles.

It influences many properties of molecules like reactivity,polarity color,magnetism .The molecular geometry can be determined by various spectroscopic methods and diffraction methods , some of which are infrared,microwave and Raman spectroscopy.

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The major product  of the chemical equation of 1,4-dibromobutane and sodium sulfide is thiolune and sodium bromide.

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

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Cupid has two sets of arrows instead of simply one. One with a lead or silver blunted tip to make someone fall out of love or even despise a person, and one with a barbed golden tip to make people fall in love.

One of Cupid's arrows, or darts, has a pointed tip made of gold, and the other has a blunt lead tip. A person struck by a golden arrow experiences intense desire, whereas a person struck by a lead arrow experiences aversion and just wants to flee.

one of the love-inspiring arrows that Cupid is said to shoot from his bow, striking the target and making them fall in love.

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a. radon (Rn) is noble gas with atomic number 86 b. xenon (Xe) is noble gas with atomic number 54. c. neon (Ne) is noble gas with atomic number 10.

a) Francium (Fr) is element with atomic number 87 (87 protons and 87 electrons).

Electron configuration of francium atom:                                                   ₈₇Fr 1s²2s²2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁶ 4f¹⁴ 5d¹⁰ 6s² 6p⁶ 7s¹ or [Rn] 7s¹, radon (Rn) is noble gas with atomic number 86.

b) Mercury (Hg) is element with atomic number 80 (80 protons and 80 electrons). Electron configuration of mercury atom:                                                  ₈₀Hg 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶ 4d¹⁰ 5s² 5p⁶ 4f¹⁴ 5d¹⁰ 6s² or [Xe] 4f¹⁴ 5d¹⁰ 6s², xenon (Xe) is noble gas with atomic number 54.

c) Silicon (Si) is element with atomic number 14 (14 protons and 14 electrons).Electron configuration of silicon atom: ₁₄Si 1s² 2s² 2p⁶ 3s² 3p² or [Ne] 3s² 3p², neon (Ne) is noble gas with atomic number 10.

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Answer:

Sugar, starch, minerals, chemicals, colors, fillers, plastic resin, and recycled plastics are examples of bulk solids. These commodities account for more than 80% of all things carried globally.

Explanation:

Neutralization reactions find applications in antacids,industrial process, environmental remediation and also in laboratories and even waste water treatment. These are reactions between an acid and a base.

Acids are defined as substances which on dissociation yield H+ ions , and these substances are sour in taste.  Compounds such as  HCl, H₂SO₄ and HNO₃ are acids as they yield H+ ions on dissociation.

According to the number of H+ ions which are generated on dissociation acids are classified as mono-protic , di-protic ,tri-protic and polyprotic  acids  depending on the number of protons which are liberated on dissociation.

Acids are widely used in industries  for  production of fertilizers, detergents  batteries and dyes.They are used in chemical industries for production of chemical compounds like salts which are produced by neutralization reactions.

Mind map can be drawn by writing neutralization reaction in center with the mentioned applications connected with neutralization reaction.

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The actual volume of the pipet 1.0037 is At about 4° Celsius, the density of fresh water reaches its maximum. The mass of water you pipetted is the difference in mass. Let's use the density to convert it to volume. The amount of water will be 1.0037 at 23.5 °C.

The formula for figuring out how much water was dispensed by the pipette is V = w * Z, where w is the water's weight, Z is a conversion factor based on the water's density, and V is the computed volume.

For a certain volume, volumetric pipettes are created to be extremely accurate. They can be utilized to move that amount of liquid that can be used to dilute or create a solution.

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Answer:

Which option below contains materials that can ALL be put into biogas plant?

D. Water hyacinth, poultry wastes, husk

11. A

12. B

17. D

18. D

16. A

5. B

6. D Sieving

i just follow the numbers in each question, the pictures is not in chronological order..

Explanation:

The net chemical equation for the production of hydrogen from propane and water can be written as follows:

C3H8 + 2H2O --> 3H2 + CO2

This equation describes the process of steam reforming, which is a common method of producing hydrogen from hydrocarbons such as propane. In this process, propane is reacted with steam (water vapor) to produce hydrogen and carbon dioxide.

The reactants on the left side of the equation are propane (C3H8) and water (H2O). The products on the right side of the equation are hydrogen (H2) and carbon dioxide (CO2). The coefficients in front of the compounds indicate the number of molecules of each compound that are involved in the reaction.

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The following is a representation of the net chemical equation for the creation of hydrogen from propane and water:

2H₂O + C₃H₈ - 3H₂ + CO₂

This equation covers the steam reforming procedure, which is a typical way to create hydrogen from hydrocarbons like propane. In this procedure, steam (water vapor) and propane are combined to create hydrogen and carbon dioxide.

Propane (C₃H₈) and water are the reactants on the left-hand side of the equation (H₂O). Carbon dioxide (CO₂) and hydrogen (H2) are the byproducts on the right side of the equation (CO₂). The number of molecules of each compound that are involved in the reaction is indicated by the coefficients placed in front of the compounds.

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146.35 × 10²³ atoms of Magnesium are present in 1 mole of Magnesium oxide.

The number of atoms found in a mole of compound is calculated by relationship between the mole and the Avogadro number. The Avogadro number is always constant that has been given by the number 6.023 × 10²³.

The relationship between the atoms and mole is given as,

1 mole = 6.023 × 10²³ atoms.

So, the number of atoms that is present in 1 mole of the MgO is equivalent to the Avogadro number.

Therefore, 1 mole of MgO has 6.023 × 10²³ atoms.

Thus, the atoms of Mg is given as:

Mg atoms = Mass of Mg × Avogadro number

Mg atoms = 24.3g × 6.023 × 10²³

Mg atoms = 146.35 × 10²³

Hence, 1 mole of MgO contains 146.35 × 10²³ atoms of Mg.

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Polymers whose molecules are comprised of repeating units of two distinct kinds are the best at describing copolymers.

A polymer that has two or more different monomer species is called a copolymer. Copolymers are a common type of polymer used in industry. Examples include acrylonitrile butadiene styrene, nitrile rubber, and polyethylene-vinyl acetate (PEVA) (ABS). Copolymerization is the process by which a copolymer is created from several types of monomers. a few more polymers. In condensation polymerization, tiny molecules are eliminated together with the polymerization of one or more monomers. From well-known synthetic plastics like polystyrene to natural biopolymers like DNA and proteins that are essential to biological structure and function, polymers come in many shapes and sizes.

Correct question:

Copolymers are best described by which one of the following:

a.monomers

b.polymers

c.elastomers

d.thermosets

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For the lighter nuclei up to atomic number 20, the number of neutrons increases at the same exact rate as the protons increase in number. For the heavier nuclei, the increase in the number of neutrons is faster than the protons increase.

The neutron-proton ratio or N/Z ratio of an atomic nucleus can be described as the ratio of its number of neutrons to its number of protons. Among stable nuclei, the neutron-proton ratio increases with increasing atomic number.

Because electrical repulsive forces between protons with distance are different than strong nuclear force attractions. Proton density in stable larger nuclei should be lower than in smaller stable nuclei.

For each element with atomic number Z up to that of calcium (Z = 20), there exists with N/Z ratio of one, except beryllium (N/Z = 1.25). Uranium-238 has the highest N/Z ratio of 1.587, while lead-208 has the highest N/Z ratio at 1.537.

For the heavier nuclei, the N/Z ratio is greater than 1 so the number of neutrons is greater than the protons.

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The freezing point of the solution can be calculated as 0.6 9.

Freezing point is the temperature at which a liquid turns into a solid. At the freezing point, the molecules of the liquid have lost enough kinetic energy that they can no longer move freely and they will form a crystal lattice structure. The freezing point of a substance is determined by the pressure of the liquid.

The freezing point of a solution is determined by a colligative property known as freezing point depression. This property states that when a solute is dissolved in a solvent, the freezing point of the solution is lower than that of the pure solvent.
The freezing point depression of an aqueous solution containing 17 g of C2H5OH in 1000 g of water can be calculated using the formula:
T f = K f * m
where T f is the freezing point of the solution, K f is the freezing point depression constant for water (1.86 km -1), and m is the molar concentration of the solution (mass of solute / mass of solvent).
Since the mass of C2H5OH is 17g, the molar mass is 46 g/mol, and the mass of water is 1000 g, the molar concentration can be calculated as:
m = (17 g / 46 g/mol) / (1000g) = 0.370 mol / kg
Thus, the freezing point of the solution can be calculated as:
T f = 1.86 km -1 * 0.370 mol/kg = 0.69.

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The shape of a molecule can help it carry out its normal function because it interacts with different molecular partners in order to play a given role.

The shape of a protein affects protein function because it depends on a specific tridimensional conformation to interact with other molecules in the cell, such as an enzyme that binds its active site to ligands.

Therefore, with this data, we can see that the shape of a protein effectively affects protein function due to the types of interaction it may carry out.

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Answer:

amount

Explanation:

according to collision theory the particles must be in/ needs the correct orientation and energy to attain reaction.

The theory that explains successful reactions is called the collision theory. The molecules must collide in the correct orientation and with sufficient energy to make a reaction. The reacting particles must undergo forward and reverse movements to react with strength.

If the collision is less, the reaction will not take place. If the colliding particles have more energy, thus the collisions will be successful, and a successful response will occur. The rate of a reaction depends on the successful collisions between reactant particles, the more successful the collision, the faster the reaction.

Examples: if two Ballard balls collide, they bounce off each other. If a reaction between A and B happens, we can see a disruption between their atoms.

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According to collision theory what is needed by particles for reaction?

Answer:

2. 6.07 g

3. 38%

Explanation:

2.

2AgNO3(aq) + Na2S(aq) --> Ag2S(s) + 2NaNO3(aq)

molecular mass of AgNO3 is 169.87 g/mol

so converting 7.79 g into mole : 7.79/169.87 = 0.049 mol

2 mol of AgNO3 will produce 1 mole of Ag2S

so 0.049 mole of AgNO3 will produce 0.049/2 = 0.0245 mol of Ag2S

since molecular mass of Ag2S is 247.8 g/mol

=> 0.0245 x 247.8 = 6.07 g

3.

molecular mass of NaBr is 102.894 g/mol

=> 3 gm will have: 3.0 / 102.849 = 0.029 mol

according to the reaction, 1 mole of NaBr will produce 1 mole of HgBr

so 0.029 mol of NaBr will produce 0.029 mol of HgBr

since molecular mass of HgBr is 360.41 g/mol

=> mass = 0.029 x 360.41 = 10.45 g

so actual mass/theoretical mass

4.000/10.45 = 0.382 or 38%

Please double check the calculations. Hope this help.