The compound formed has a(n) ___________ bond and is a(n) _________________

Potassium-40 is a radioactive material. It contains 19 protons and 21 neutrons. During the process of Potassium-40 decay, one of its 21 neutrons becomes a proton and an electron is formed in the process. The correct options that apply:

A) The mass number is changed by the decay of Potassium-40.

B) After decay, the atom is not Potassium.

A) The mass number is changed by the decay of Potassium-40.

During the decay of Potassium-40, one of its 21 neutrons is converted into a proton. Since the mass number is the sum of protons and neutrons in an atom, this conversion changes the composition of the nucleus and, consequently, the mass number of the atom.

B) After decay, the atom is not Potassium.

The conversion of a neutron into a proton during decay changes the atomic number of the atom. Potassium has an atomic number of 19, but the resulting atom, after the decay, will have an atomic number of 20. Therefore, the atom is no longer potassium but a different element.

C) The mass number is unchanged by the decay of Potassium-40.

As explained in statement A, the decay of Potassium-40 involves the conversion of a neutron into a proton. This changes the composition of the nucleus and, consequently, the mass number of the atom.

D) After decay, the atom is still Potassium.

As discussed in statement B, the conversion of a neutron into a proton during decay changes the atomic number of the atom. Since the atomic number defines the identity of the element, the resulting atom after the decay is no longer potassium.

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The complete question is:

Potassium-40 is a radioactive material. It contains 19 protons and 21 neutrons. During the process of Potassium-40 decay, one of its 21 neutrons becomes a proton and an electron is formed in the process. Select all that apply.

A) The mass number is changed by the decay of Potassium-40.

B) After decay the atom is not Potassium.

C) The mass number is unchanged by the decay of Potassium-40.

D) After decay the atom is still Potassium.

CaCO3(s) + 2HCl(aq) → CaCl2(aq) + H2O(l) + CO2(g)

Answer:

0.659 mol

Explanation:

n(NH3)/n(N2) = 4/5

n(NH3) = 4/5×0.824

= 0.659 mol

The balanced equation in which ammonia reacts with nitrogen monoxide to produce nitrogen and water. 4NH3(g) + 6NO(g) → 5N2(g) + 6H2O. 0.659 moles of NH3 are necessary to produce 0.824 mol N2.

The term balanced chemical equation is defined as  has number atoms of each element equal on both left and right sides of the reaction.

The chemical equation must be balanced in order to obey the law of conservation of mass. When the number of different atoms of elements in the reactants side equals the number of atoms in the products side, the chemical equation is balanced.

The balanced chemical equation is as follows:

4NH3(g) + 6NO(g) → 5N2(g) + 6H2O

n (NH3) / n(N2) = 4 / 5

n (NH3) = 4 / 5 × 0.824

= 0.659 mol

Thus, 0.659 moles of NH3 are necessary to produce 0.824 mol N2.

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Answer:

B

Explanation:

Add up all the numbers and the answer is 40

Then divide by how many numbers there are which 5

40/5=8

:)

Answer:

The cell theory claims these three components:

1. cell is the smallest functional unit of life: It can be observed under the microscope that cells have various type of molecules and organelles present and have adifferent functional role in the cell which explains that the cell is the smallest unit of life as its molecules or organelles can not carry the life process on their own.

2. All organisms are made up of cells: From bacteria and archaea to human and other life forms are made up of a single cell or organization of cells in a specific pattern it also can be observed by the microscopic of blood or other tissue or cell of an organism.

3. Arise from pre-existing cell: The cells are can be studied under a microscope during cell division where we can observe that new cells come from the pre existing cell by the cell division.

Answer:

a

Explanation:

salt and energy can cause reactions to produce electricity

Answer: The answer is A

Explanation:  An electrolyte solution has the ability to conduct electricity because when a salt dissolves, its dissociated ions can move freely in solution, allowing a charge to flow. Electrolyte solutions are normally formed when a salt is placed into a solvent such as water. (Google  Source If needed)

When it comes to hydrothermal deposits, vein- or fissure-filling deposits of metallic ores such as gold or silver are commonly found. These deposits are formed when hot fluids carrying minerals rise through fractures in the earth's crust and then cool and deposit their mineral contents.

The veins that are created are narrow and can be of great length, with the mineralization being concentrated within the vein.

Hydrothermal deposits are created by hot fluids that carry minerals through fractures in the earth's crust and then deposit them as they cool. Vein- or fissure-filling deposits of metallic ores such as gold or silver are commonly found in these types of deposits. The veins can be narrow but of great length and the mineralization is usually concentrated within them. These deposits can be found in many locations around the world and are an important source of valuable minerals.

Hydrothermal deposits are a fascinating geological phenomenon and have provided us with many valuable minerals over the years. Vein- or fissure-filling deposits of metallic ores such as gold or silver are common in these deposits and have been sought after for centuries.

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The melting point of the material, comparing the state of the matter at room temperature, and comparing the viscosity of each substance are the tests that can deduce the strength of the intermolecular forces of the compound.

The intermolecular forces influence a substance's melting point. Therefore, a substance's high melting point indicates that the intermolecular interactions between its particles are also significant.

Similar to this, the condition of substance at ambient temperature specifies what that state of matter is.

The intermolecular forces also affect the viscosity of the substances. When intermolecular interactions between layers of a substance are particularly strong, the viscosity of the substance increases.

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Answer:

This is probably too late but the answer is 351

Explanation:

0.73x751=548.23

After getting both new pressure and new volume and having only one original pressure which is 1.56 you´ll have to divide 548.23 by 1.56 and you´ll end up with 351 which should be the original volume.

The full name of the given compound is 8-methyl-4- nonene

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note- the diagram of the given question is attached below

The continued use of pesticide often causes insects to become immune to the chemical compounds.

Pest control agents are compounds known as pesticides. Herbicides, insecticides, nematicides, molluscicides, piscicides, avicides, rodenticides, bactericides, repellents for insects and animals, microbicides, fungicides, and lampricides fall under this category.

Cancers, birth deformities, reproductive injury, immunotoxicity, neurological or developmental toxicity, including endocrine system disturbance are just some examples of documented chronic consequences. The impacts of pesticides are more likely to affect some people than most others.

Therefore, The continued use of pesticide often causes insects to become immune to the chemical compounds.

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The balanced net ionic equation for the neutralization reaction of carbonic acid with potassium hydroxide is

H2CO3(aq) + 2OH-(aq) → CO3^(2-)(aq) + 2H2O(l)

Neutralization reaction is a chemical reaction between an acid and a base that produces a salt and water. Titrated means to determine the concentration of a solution by measuring the volume of a known solution required to react with it.

Net ionic equation is a chemical equation in which soluble ionic compounds are written as dissociated ions. When carbonic acid is titrated with potassium hydroxide, the following neutralization reaction takes place:

H2CO3 (aq) + 2KOH (aq) → K2CO3 (aq) + 2H2O (l)

The balanced net ionic equation for the neutralization reaction is:

H+ (aq) + OH- (aq) → H2O (l)

Thus, the balanced net ionic equation required is:

H2CO3(aq) + 2OH-(aq) → CO3^(2-)(aq) + 2H2O(l)

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Answer:

number of protons in a nucleus

Explanation:

number of protons in a nucleus.  The number of protons in the nucleus is, by definition, the atomic number.

This problem is providing the produced moles of sodium hydroxide one must obtain from sodium oxide, so its moles are required and found to be 0.785 mol after the following calculations.

In chemistry, we use stoichiometry as a tool for calculating mole-mass relationships in chemical reactions. Thus, a balanced chemical equation is required as well as the corresponding mole ratio of the defined to the required substance.

In this case, we have the following chemical equation:

\(Na_2O + H_2O \rightarrow 2 NaOH\)

Thus, since we have the moles of NaOH, we can apply a 2:1 mole ratio to Na2O in order to calculate the required:

\(1.57molNaOH*\frac{1molNa_2O}{2molNaOH} \\\\0.785molNa_2O\)

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Answer:

i do not uterstand

Explanation:

Answer: When they do, they transfer some of their energy. The energy is transferred from particle to particle. It is sort of like a row of dominoes falling over. In this process, thermal energy moves through a substance. It can even move into other nearby substances. In Figure above, conduction occurs between particles of the metal in the pot. It also occurs between particles of the pot

Explanation:

Answer:

D Sunlight

Explanation:

Hoped that helped :)

Answer:

powdered sugar

Explanation:

The higher is the exposed area of sugar, the faster is the dissolution process. Thus, to choose between the different types of sugar, we have to look at the volume occupied by the sugar.

In sugar cubes, the particles of sugar as compacted in a cube, so the particles inside the cube are not exposed to the solvent (water). So, sugar cubes have the slowest dissolution process. Then, in granulated sugar, the particles have more area exposed, so this type of sugar will dissolve faster than sugar cubes. Finally, powdered sugar is composed of tiny particles with more are exposed, so powdered sugar has the fastest dissolution process.

Therefore, powdered sugar will dissolve the fastest.

Answer:

Explanation:

WAKE FOR CLIMATE CHANGE IS NOT FAKE

SAVE THE GLACIERS

HELP THE ARCTIC ANIMALS

Answer:

electronegativity increases

Protein, nucleic acid, and polysaccharide molecules will polymerize by the condensation reactions.

condensation reaction, are the reactions in which two molecules will combine, usually in the presence of a catalyst, with the elimination of water or some other simple molecules. The combination of the two identical molecules is called as self-condensation. Aldehydes, ketones, esters, alkynes (acetylenes), as well as amines are the several organic compounds that will combine with each other and, except for amines, among themselves to form a larger molecules, many of which are useful intermediate compounds in an organic synthesis. Catalysts commonly used in condensation reactions include acids, bases, the cyanide ion, as well as the complex metal ions.

The shapes of the most biological macromolecules are held in a place largely by the strong covalent bonds that will form between the different parts of the molecule.

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Answer:

First one

Explanation:

Because water molecules at the surface of the water puddle attract more to one other than they do to the air molecules above them

Answer:

Question 2:

Cohesion and adhesion

Water has forces of attraction between different molecules, so its molecules are locomotive.

Question 3:

Surface tension

It experiences a perpendicular force which keeps the area of the pepper on surface

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Answer: sp3

Explanation:

The correct answer is that Friedel-Crafts reactions can not be done on moderately or strongly deactivated ring systems.

This is a limitation of Friedel-Crafts reactions because they require an activated ring system in order to proceed.

Deactivated ring systems do not have the necessary electron density to facilitate the reaction, and therefore the reaction will not occur.

Friedel-Crafts alkylation and acylation reactions are both types of electrophilic aromatic substitution reactions that involve the formation of a carbon-carbon bond between an aromatic ring and an alkyl or acyl group.

These reactions are commonly used in organic synthesis to introduce new functional groups onto an aromatic ring.

However, they do have other limitations including the fact that Friedel-Crafts alkylation substrates can undergo rearrangement,

Friedel-Crafts acylation often leads to polyacylated products,

and Friedel-Crafts alkylation often leads to polyalkylated products.

These limitations must be taken into consideration when designing a synthetic route that involves a Friedel-Crafts reaction.

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Carbon dioxide,Ammonia,Oxygen,Water,Hydrogen fluoride,Nitrogen are the polarity of 6 real molecules

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The statement "Reaction of heating potassium permanganate produces potassium manganate" is false.

The reaction of heating potassium permanganate (KMnO₄) does not produce potassium manganate (K₂MnO₄). Instead, it undergoes a thermal decomposition reaction, resulting in the formation of different products.

When heated, potassium permanganate decomposes into potassium manganate (K₂MnO₄), manganese dioxide (MnO₂), and oxygen gas (O₂).

The reaction can be represented as follows:

2 KMnO₄(s) → K₂MnO₄(s) + MnO₂(s) + O₂(g)

Therefore, heating potassium permanganate leads to the formation of potassium manganate, along with manganese dioxide and oxygen gas. The color change from purple to green observed during the reaction is due to the formation of potassium manganate.

However, it is important to note that potassium manganate is not the sole product of the reaction but one of the products alongside manganese dioxide and oxygen gas.

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Complete question :

Reaction of heating potassium permanganate produces potassium manganate. T/F

Because the transition state is unstable, reactant molecules don't stay there long, but quickly proceed to the next step of the chemical reaction.

According to the context, the term may or may not include ions that meet this requirement. A molecule is a collection of two or more atoms held together by the attractive forces known as chemical bonds. When speaking of polyatomic ions, the distinction between them and ions is frequently ignored in the fields of quantum physics, organic chemistry, and biochemistry.

As our understanding of molecular structure has grown, so has the definition of a molecule. Molecules are the smallest particles of pure chemical substances that nevertheless retain their composition and chemical properties, according to earlier definitions that were less accurate.

The incorruptible quintessence aether, a fifth element, was thought to be the essential component of the heavenly bodies.

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