While driving down the road, a tiny hummingbird hit the windshield of
Maria's car. This is a clear case of Newton's 3rd law of motion. The
hummingbird hit the car and the car hit the hummingbird. How do the
forces on the hummingbird and the windshield compare?*
The forces are equal and opposite.
The force on the windshield is greater
The force on the hummingbird is greater
The force on the hummingbird is less than that of the windshield.

Pyruvate is oxidized to Acetyl-CoA in the cytoplasm. The molecules produced are 2 carbon dioxide molecules, 2 NADH molecules, and 2 Acetyl CoA's. ;The process converts pyruvate to Acetyl CoA because otherwise, it cannot be introduced to the Citric Acid Cycle.

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The mass of O2 gas is about 6.9 g.

It is a law which link a gas's pressure, volume, and temperature.

The ideal gas law states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature in Kelvins.

We can use this equation to find the number of moles of gas, and then use the molar mass of O2 to find the mass of the gas.

First, we can rearrange the ideal gas law to solve for n:

n = (PV) / (RT)

We know that P = 0.900atm, V = 21.4L, R = 0.08206 Latm/molK, and T = 257K.

Substituting these values into the equation:

n = (0.900atm * 21.4L) / (0.08206 Latm/molK * 257K)

Now we know the number of moles of O2 gas. To find the mass, we can use the molar mass of O2, which is 32.00 g/mol.

mass = n * molar mass

mass = n * 32.00 g/mol

So, the mass of O2 gas is about 6.9 g.

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The speed of the rock after 10 seconds of free fall would be approximately 122 meters per second (274 mph).

What is rock?

Rock is a solid material composed of a combination of minerals, such as quartz, feldspar, mica, and other minerals. Rocks are formed by the process of weathering, erosion, and deposition of material from the Earth's crust, which is composed of rock materials. Rocks are classified based on their composition and origin. The three main types of rocks are sedimentary, igneous, and metamorphic. Sedimentary rocks form from sediments that are transported and deposited by water, wind, or ice. Igneous rocks form when molten rock material cools and crystallizes. Metamorphic rocks form when existing rocks are changed by intense heat and pressure. Rocks are an important part of the Earth's surface and are used in many applications, such as construction, landscaping and the production of certain materials. Rocks can also provide information about the geologic history of an area.

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Three isotopes of carbon are found in nature: carbon 13, that has 7 neutrons, carbon 14, that has 8 neutrons, and carbon 12, that has 6 particles (plus 6 protons = 12).

A naturally occurring stable isotope that carbon with such a nucleus made up of six protons & seven neutrons is called carbon-13 (13C).

The amount of protons in an element's nucleus determines how it will react chemically.However, the amount or neutrons in the nucleus of different atoms in the same element might vary.

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If the formula in cell d49 is copied to cells e49. The sequence of values would be generated are C, C, C.

We can observe from the attached excel file that the formula in cell d49 indicates;

= $D$44

This means that the value in cell d49 will be the same as the value in cell e49 because Excel copies the result when it moves or copies a cell that contains a formula.

Since C is the value in d44, it follows that C will also be the value in e49.

The values in cells E49 and F49 will likewise be C using the same reasoning Excel employs when copying formulas.

Your question is incomplete but most probably the proper image of the excel sheet attached below

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A polyatomic ion, often called a molecular ion, is a set of covalently bound atoms or a metal complex that can be thought of as acting as a single unit and has a net charge that is not zero.

Chlorate. ClO₃⁻,Hydroxide. OH⁻,Carbonate. CO₃⁻²,Sulfate. SO₄⁻²,Phosphate. PO₄⁻³,Ammonium. NH₄⁺

Similar to how ions are created when neutral atoms acquire or lose electrons, polyatomic ions are created when neutral molecules gain or lose electrons. Because the total number of electrons in the molecule is more than the total number of protons in the molecule, a polyatomic ion is a collection of covalently bound atoms with a net charge. A polyatomic ion's net charge must be equal to the formal charges added to each of its atoms in the Lewis dot structure.

A molecule that has been ionised by gaining or losing electrons is referred to as a polyatomic ion. The group of atoms that are covalently linked together to form a polyatomic ion has a net charge because the total amount of electrons and protons in the molecule is not equal. When depicting Lewis dot structures, the total charge on a polyatomic ion is equal to the sum of the formal charges on each of the atoms in the ion.

List of Common Polyatomic Ions

[AsO3]3-Arsenate

[BO3]3-Borate

[PO3]3-Phosphite

[PO4]3-Phosphate

[SiO3]2-Silicate

[SO4]2-Sulfate

[SO3]2-Sulfite

[S2O3]2-Thiosulfate

[H2PO4]–Dihydrogen phosphate-

[OH]–Hydroxide

[HSO4]–Hydrogen sulphate

[NO3]–Nitrate

[NO2]–Nitrite

[ClO4]–Perchlorate

[MnO4]–Permanganate

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At pH 7.0, Valine and Tyrosine will both exist in their uncharged forms. The Valine will be drawn as a CH₃CH(NH₂)₂ group and the Tyrosine will be drawn as a C₆H₄CH(OH)CH₂NH₂ group.

Both amino acids will be linked together by a peptide bond, which is a covalent bond that will be formed between the carboxyl group of one amino acid and the amino group of another amino acid. This will create the dipeptide Val-Tyr, which will be drawn as a

CH₃CH(NH₂)CO-C₆H₄CH(OH)CH₂NH₂.

The carboxyl group of Valine will be linked to the amino group of Tyrosine, forming a single molecule.

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A) The formula for the molarity of HCl is 1.727*10-2 mol/0.025 L= 0.6908 (M). (B) The amount of HCl that one antacid pill neutralises is (0.01727 -0.0046893) mol = 0.0125807 mol.(C) The gel's volume efficacy is 0.004194/0.01*1000, or 419.4 mL.

An aqueous solution of hydrogen chloride is what is known as hydrochloric acid (HCL), commonly referred to as muriatic acid. It has an unmistakably strong odour and is colourless. It is categorised as a powerful acid. In the digestive tracts of the majority of animal species, including humans, it is a part of the stomach acid. The creation of inorganic and organic chemicals, the removal of metal stains, the extraction of oil, the purification of table salt, and pH control all include the usage of HCl. Acid hydrochloride is an inorganic substance. With the chemical formula HCl, it is a very corrosive acid. Muriatic acid and hydrogen chloride are other names for it.

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There would be 1.67 grams of water are produced if we react 3 moles of hydrogen with 3 moles of oxygen.

First we write the balanced reaction

2H₂ (g) + O₂ (g) → 2H₂O (l)

From the reaction we know that 2 moles of H₂ and 1 mole of O₂  produce 2 moles of 2H₂O. the limiting reactant is hydrogen, so we can use unitary method to calculate the moles of water produced

Moles of water= 2/2 x moles hydrogen

Moles of water = 2/2 x 3 moles = 3 moles

then we can calculate the mass of water produced

Mass water = mass/ mass molar

Mass water = 3 moles / 18 g/mol

mass water = 1.67 gram

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CH4 is the compound with the lowest boiling point.

Helium has the lowest melting temperature of all chemical elements, and carbon has the greatest melting point.

With a reduction in molecule size, the strength of the London dispersion forces also reduces Therefore, in this situation, the molecule with the fewest branches and shortest length has the smallest boiling point.

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The complete question is -

Which one of the following compounds will have the lowest boiling point?  (a) NH3 (b) C2H6 (c) CH3 (d) H2O

A chemical that releases hydrogen ions into water when coupled with certain metals to form salts.

A substance that, when combined with specific metals, creates salts by releasing hydrogen ions into water. Acids taste sour and cause some colours to turn red. Gastric acid is one of the body's natural acids, and it can support organ function. A substance is considered an acid if it tastes sour in aqueous solution, turns blue litmus paper red, reacts with some metals to release hydrogen, reacts with bases to produce salts, and fosters chemical reactions (acid catalysis).

A chemical that tastes sour and when added to water, produces hydrogen ions is referred to as an acid in science. Acids with a pH lower than 7 will cause litmus to turn red. Any material that when combined with hydrogen ions becomes an acid

weak acid:

HA ↔ H+  + A-

∴ Ka = 5 E-5 M = [H+][A-]/[HA]

∴ [HA] = 0.10 M - [A-]

∴ [H+] = [A-]

⇒ Ka = [H+]²/(0.10 - [H+])

substitute the values in the above equation we get

⇒ [H+]² + 5 E-5[H+] - 5 E-6 = 0

simplifying the above equation, we get

⇒ [H+] = 2.211 E-3 M

⇒ pH = - Log [H+]

⇒ pH = 2.6553

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You are not required to adjust the subscript in this case because Silver does have a charge value + and Chlorine does have a charge of -. However, because nitrate has a charge of - and calcium has a charge of 2+.

What are some uses for nitrate?

Natural compounds called nitrates (or nitrites) can be found in soil, air, and water. In order to prevent the development of bacteria and also to improve the color and flavor of food, nitrates are also employed as a food additive.

Why is nitrate poisonous?

The main health consequence of nitrate and nitrite exposure is methemoglobinemia. The clinical appearance may be one of oxygen starvation with cyanosis, cardiac arrhythmias and circulation failure, and developing central nervous system (CNS) consequences, depending on the amount of total MetHb [Skold et al.

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Different types of light can change materials differently because some materials absorb light energy and some reflect light.

When a light wave touches an object, they are either transmitted, reflected, absorbed, refracted, and diffracted, or depending on the material's makeup and the light energy's wavelength.

Usually, materials absorb a few colors of light and reflect others, to different extents, so that they get colored. Some materials will even absorb light of one color and emit light of another color, an effect called fluorescence.

so we can conclude that different materials absorb and reflect an image's light energy.

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One mole of nitrogen (N₂) gas reacts with 3 moles of hydrogen (H₂) gas to produce 2 moles of ammonia (NH₃).

When nitrogen gas (N₂) reacts with hydrogen gas (H₂) in the presence of a catalyst, the reaction produces ammonia (NH₃). The balanced equation for this reaction is: N₂ + 3H₂ --> 2NH₃.

This means that for every mole of nitrogen gas that reacts, 3 moles of hydrogen gas are needed and 2 moles of ammonia are produced. This reaction is the basis for the Haber-Bosch process, which is used industrially to produce ammonia on a large scale. The reaction is exothermic and occurs at high temperature and high pressure, with a catalyst such as iron or ruthenium used to increase the rate of reaction.

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The ketal derived from ethylene glycol and cyclohexanone can be drawn as follows. The two reactant molecules are shown in the center of the diagram.

The ethylene glycol molecule has two oxygen atoms, each of which is bound to two hydrogen atoms. The cyclohexanone molecule has a ring of six carbon atoms, each of which is bound to one hydrogen atom and one oxygen atom.

The two molecules are connected through a single bond between the oxygen atom of ethylene glycol and the carbon atom of cyclohexanone. The resulting product is a molecule with two oxygen atoms, each of which is bound to two hydrogen atoms, and a ring of six carbon atoms, each of which is bound to two hydrogen atoms and two oxygen atoms. This molecule is the ketal derived from ethylene glycol and cyclohexanone.

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Dispersion types include chromatic, material, waveguide, and polarisation mode dispersion.

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The chemical entity's atomic number, commonly referred to as the nuclear charge number, is the charging number of an atoms (sign Z). This is the same as the proton amount (pn), which is the number of protons found in typical nuclei.

What is the function of a nucleus?

The nucleus houses the genes, which are parts that contain the genetic material, and regulates and directs the actions of the organism Inside the nucleus, tiny formations known as nucleoli are frequently found. The gel-like matrix where the nuclear components are suspended is known as the nucleoplasm.

How does the nucleus get built?

Atomic nuclei are made up of electrically charged proton and neutral neutrons. These items are held by the strong force, which is the greatest fundamental force that science has discovered.

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Answer: Just in case your still stuck, The half-life of iron-59 is 44.5 days, which means that half of the original sample will decay in that amount of time. After 133.5 days, 2.76 g of iron-59 remains. To find the original mass of the sample, we need to know how many half-lives have passed.

133.5 days / 44.5 days/half-life = 3 half-lives

After three half-lives, the remaining mass is 1/8 of the original mass. Therefore,

2.76 g * 8 = 22.08 g

The original mass of the sample was 22.08 grams.

Hope this helps you now or later on :)

Answer:

1.) plastics are poor conductors of heat and electricity

2.) plastics are non reactive metals they are not attacked by chemicals

3.) plastics are lightweight strong and durable

4.) plastics can be moulded and dyed easily in many colours like orange, pink ,sky blue , red, green, and e.t.c

the four uses of plastics are:

1.) bakelite is used to make electric switches insulating casings and handle of cookware and tools

2.) melamine is heat resistant and is used to make kitchenware , floor tiles and special suits for firefighters

3.) Teflon is used as a non stick coating on cookware as both water and oil do not stick to it

4.) many plastics are waterproof and therefore

they are used to make Water bottles and waterproof containers

Explanation:

Search it up bro :')

The four properties of plastics are malleability, longevity, cheapness, and poor conductivity.

Plastics are generally very malleable and can be molded into different shapes very easily. Different types of plastics have different melting points, which enables them to be shaped into different shapes and make objects.

Plastics are generally very durable and have a long shelf life. That is the reason why plastics are used to make things that go through a lot of wear and tear. A negative aspect of this is that plastics, when exposed to natural processes of degradation, do not break down easily and harm the environment.

Plastics are usually cheap and can be obtained at a very less price. This helps people afford goods made out of plastic and also reduces the production cost of the goods.

Plastics are generally very poor conductors of heat and electricity. This means that they do not conduct heat and electricity very well, which is why they are used as insulators and wire coverings.

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A nucleotide consists of a nitrogenous base, along with a sugar molecule

A nitrogenous base, a phosphate group, and a sugar molecule with five carbons constitute a nucleotide. The different kinds of nitrogenous bases that can make up a nucleotide are adenine, thymine, guanine, and cytosine. These bases are in charge of the genetic code that is stored in DNA and RNA since they are the base pairs that make up the double helix structure of DNA and the single stranded structure of RNA.

In DNA and RNA, the sugar molecule found within a nucleotide is referred to as deoxyribose. The energy required to power the chemical reactions that build and break the bonds between nucleotides, enabling DNA and RNA to store and transport genetic information, is provided by the phosphate group.

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By the use of rhetorical device, The speaker in "Eulogy of the Dog" uses both pathos and figurative language to make a powerful argument for the importance and loyalty of a dog's companionship.

The speaker evokes a strong emotional response from the audience by describing the unwavering loyalty and devotion of a dog to its master, even in the face of adversity and hardship.

The speaker describes the dog as "the one absolutely unselfish friend that man can have in this selfish world, the one that never deserts him, the one that never proves ungrateful or treacherous." This evokes a sense of sadness and empathy in the audience, as they are reminded of the potential betrayal and unfaithfulness of human relationships.

The speaker was said to have used figurative language to bring the argument to life and make it more relatable to the audience. The speaker describes the dog as "guards the sleep of his pauper master as if he were a prince" and "faithful and true even in death"

In all, the use of pathos and figurative language in the speech helps to create a powerful and emotional argument for the importance and loyalty of a dog's companionship.

The speaker is able to evoke feelings of empathy and sadness in the audience, while also making the abstract concept of loyalty more relatable and tangible.

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Answer: the other guy is correct I got a 90% on that question

Explanation:

In the last flask, which contained 7.5g of baking soda initially, add vinegar. The fact that a reaction takes place proves that vinegar was the limiting reactant.

What limiting reagent is used in the balloon experiment?

Each flask should contain about 15 drops of bromothymol blue after the balloons have been removed. The first flask, which contained 2.0 baking soda initially, should now contain baking soda. The fact that a reaction takes place proves that baking soda was the limiting reactant. Calculating how much product each reactant can produce and identifying the limiting reagent by which one produces the least amount of product is one method of doing so.

Since oxygen is the limiting reactant, lowering the oxygen input is the best way to reduce soot.

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The number of ammonia molecules made when 6 grams of hydrogen gas reacts with excess nitrogen is 4 mol.

Given equation,

3H2(g) + N2(g) → 2NH3(g)

If N2 is present in excess, increase the provided moles H2 even by mole ratio of H2 to NH3 within balanced equation such that moles H2 cancel, producing moles NH3.

⇒               6 mol H2 × (2 mol NH3/3 mol H2)

     ⇒                        = 4 mol NH3.

A chemical equation is a representation of the a chemical reaction in the shape of a chemical formula with an arrow going from reactant to product, and a balanced chemical equation has the same amount of atoms on both sides of the equation. The rule of the conservation of mass guides the balancing of such a chemical equation in this case.

A chemical reaction is the process in which one or even more compounds, defined as reactants, are converted into one or more unique entities, known as products. Chemical elements as well as compounds are examples of substances. A chemical reaction rearranges the component atoms of the reactants to produce various products. In this situation, hydrogen and nitrogen combine to generate ammonia. The reaction described above is an example of the a combination reaction.

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A red laser with a wavelength of 676 nm would have a frequency of 4.43 x hertz.

The frequency in physics is the quantity of waves passing a fixed location in a unit of time. It also indicates how many cycles or vibrations a body in periodic motion experiences in a given unit of time.

Frequency is defined as the rate of changes in current direction per second. It is given in hertz (Hz), an internationally recognized unit of measurement. One hertz is equal to one cycle per second. A cycle is the technical term for a whole alternating current or voltage pulse.

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Answer:

1. Isotopes are atoms of an element that consist of the same number of protons but a different number of neutrons.

2. No. of protons = 13

 No. of neutrons = 27 - 13

                            = 14

3. refer to attached file

4(a). Since the noble gases can be found in group 18 of the periodic table, it suggests that they have a complete octet (a full valence shell of electrons), and this allows them to be stable gases that show the least reactivity.

4(b). Since the number of protons and electrons are equal in an atom, the opposite charges are balanced and thus, there is no net charge on the atom (neutrons present in the atom have no charge). Hence, an atom is electrically neutral.

5. Mass no. of X = 6 + 6

                           = 12

   Mass no. of Y = 6 + 8

                           = 14

6. mass number = no. of protons in the nucleus of an atom + no. of neutrons in the nucleus of an atom

atomic number = no. of protons in the nucleus of an atom

isobars = atoms of elements which have the same mass number but different atomic numbers

isotopes = atoms of elements which have the same number of protons but a different number of neutrons

Interactions between two hexane molecules occur through London dispersion forces, which are weak intermolecular forces that arise due to the temporary dipoles produced by the motion of electrons in the molecules.

These forces become stronger as the molecules become larger, and so hexane molecules, which have long hydrocarbon chains, experience fairly strong London dispersion forces. These forces allow the hexane molecules to interact with one another in a way that they can form weak associations, which are important for the formation of liquid hexane.

Additionally, when two hexane molecules approach one another, they may also experience dipole-dipole interactions, which are slightly stronger than London dispersion forces. These interactions occur when the molecules have a slightly different distribution of electrons and attract one another.

Lastly, hexane molecules can also experience hydrogen bonding, which is the strongest intermolecular force and occurs when a hydrogen atom covalently bonded to an electronegative atom is attracted to an electronegative atom in a different molecule.

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Answer:Fe₃O₄

Explanation:It contains 3 molecules of Iron and 4 molecules of Oxygen and that makes Magnetite.

the oxidation number of the following is a. PO43-: Phosphorus: +5, Oxygen: -2, b. PO33-: Phosphorus: +3, Oxygen: -2, c. HPO42-: Hydrogen: +1, Phosphorus: +5, Oxygen: -2, d. P3O103-: Phosphorus: +5, Oxygen: -2, e. IO3-: Iodine: +5, Oxygen: -2, f. IO2-: Iodine: +4, Oxygen: -2.

g. IO-: Iodine: +1,h. NH4+: Nitrogen: +3, Hydrogen: +1, i. NO2+: Nitrogen: +4, Oxygen: -2, j. NO2-: Nitrogen: +3, Oxygen: -2, k. NO-: Nitrogen: +2, Oxygen: -2, l. NO3+: Nitrogen: +5, Oxygen: -2, m. N2O22-: Nitrogen: +5, Oxygen: -2, n. TeO42-: Tellurium: +6, Oxygen: -2, o. SiO22-: Silicon: +4, Oxygen: -2. The oxidation number (also called oxidation state) of an atom in a chemical compound is a number that represents the degree of oxidation (loss of electrons) of that atom. The oxidation number is assigned based on a set of rules, such as: The oxidation number of an atom in its elemental form is always 0. In a compound, the sum of the oxidation numbers of all atoms must be equal to the charge of the compound (if it is an ion) or 0 (if it is a neutral compound).

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Answer:

to give a fake answer ofc