What is the mass of an object with a density of 2g/mL that displaces 1.5mL of water?
O 0.50
O 1.75
O there is not enough information to tell
O 3

The symbol equation Fe2O3 + 3H2 → 2Fe + 3H2O can be used to symbolize the reduction of iron(III) oxide to iron.

A redox reaction occurs when iron (Fe) and carbon dioxide (CO2) react with iron (Fe) oxide (Fe2O3) and carbon monoxide (CO) to produce iron (Fe) and carbon dioxide (CO2). You might write the equation as Fe2O3+3CO2 → Fe+3CO2.

Each iron atom in Fe2O3 undergoes a reduction, changing from an oxidation number of +3 to 0, making Fe2O3 the oxidizing agent. The third reaction is distinct from the first two since it only involves one reactant.

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oxidation number or state of copper in solid copper is zero

The oxidation state of all element is zero in solid sate, while it can different in liquid or gas state.

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Answer:

The answer will be listed below.

Explanation:

Kinetic Energy- Energy of motion, increases with mass

Potential Energy- Stored energy, increases with height

Both- Increases with velocity

The solvent is said to be saturated when it has dissolved all the solute it can at a particular temperature.

The relationship between solvents and solutes is an important one in the study of chemistry. In order to understand the dynamics of this relationship, it is important to understand the concept of saturation. When a solvent has dissolved all the solute it can at a particular temperature, it is said to be saturated. In this essay, the significance of saturation in solvent-solute interactions will be discussed in detail.

At the most basic level, saturation is important because it helps to inform chemists of the maximum amount of solute that can be dissolved in a solvent at any given temperature. This information can be used to control the concentration of a solution and to ensure that it is within the desired range for a particular application.

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Among the given molecules, CH₄ (methane) will have the lowest boiling point.

Boiling point is primarily determined by intermolecular forces, specifically the strength of hydrogen bonding or dipole-dipole interactions between molecules. In this case, CH₄ is a nonpolar molecule with only dispersion forces, also known as Van der Waals forces, between its molecules.

NH₃ (ammonia) and NH₂Cl (monochloramine) are both polar molecules capable of forming hydrogen bonds. The presence of hydrogen bonding leads to stronger intermolecular forces, resulting in higher boiling points compared to CH₄.

CH₃Cl (chloromethane) and CHCl₃ (chloroform) are both polar molecules as well, and they exhibit dipole-dipole interactions along with dispersion forces. Although they have stronger intermolecular forces compared to CH₄, the presence of chlorine atoms increases their molecular mass, which also contributes to higher boiling points.

Therefore, CH₄, being nonpolar and having only weak dispersion forces, will have the lowest boiling point among the given molecules.

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The equilibrium chemical equation Rb(s) + Cl₂(g) RbCl₂(s) has the appropriate product(s) for the reactivity of rubidium.

Magnesium chloride (MgCl₂) is created when the elements magnesium (Mg) and chlorine (Cl₂) mix. As a result, the reaction is a combination reaction, and the equation that balances it is as follows: Mg(s)+Cl₂(g)→MgCl₂(s)

For instance, salt chlorate, a typical household bleach, is created when chlorine, Cl₂, interacts with sodium hydroxide, NaOH, in a disproportionation process. Sodium and chlorine combine to make sodium chloride, a common table salt.

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The mass of the water of crystallization is 0.7475 g.

We know that a hydrated compound is a compound that contains in it the water of crystallization. This is the water that becomes attached to the structure of the compound that is in question.

In this case, we have that the salt that is question is a hydrate of magnesium sulfate and we have.

Mass of the hydrated salt =  2.5000 g

Mass of the anhydrous salt =  1.7525 g

Mass of water present = 2.5000 g - 1.7525 g

= 0.7475 g

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Missing parts;

A  2.5000 g sample of epsom salt (maghesiun sulfate hydrate) is heated until the crystals arereduced to a dry powder. after cooling the residue was found to weigh 1.7525 g. calculate the mass of the water.

Rutherford model task 1 is not supported by Thomson’s experimental evidence.

The atom consists of matter that may be split without releasing electrical charges.

It's also the smallest unit of matter with chemical element features. As a result, the atom is the fundamental unit of science.

The nuclear model of the atom was initially put out by Rutherford. His atomic model states that the majority of an atom's volume is empty,

The nucleus, which contains protons and neutrons, is located in the middle of the atom, and its electrons orbit the nucleus in well-defined paths.

If we discuss the research of some other scientists, like Dalton, Neil Bohr, and JJ Thomson, they are all mostly consistent with Rutherford's findings.

For instance, Dalton's atomic theory presupposed that all atoms are roughly the same size and that atoms interact to generate compounds.

According to Rutherford's theory, atoms have a fixed number of electrons that can be shared to create compounds.

The Bohr model, which posits that electrons orbit the nucleus in certain shells, is also consistent with Rutherford's findings, which gave rise to the idea of shells.

If we discuss Thomson's Plum Pudding Model, it describes atoms as negatively charged particles around a soup of positively charged ions. This is also consistent with Rutherford's findings, which show that positive nuclei are surrounded by negative electrons.

Although Rutherford's model was the greatest atomic model, it nevertheless drew on several earlier investigations and was therefore consistent with the outcomes of earlier models.

Hence rutherford model task 1 is not supported by Thomson’s experimental evidence.

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"Group analysis" is a well-known qualitative analysis method that is used with NaBiO3 for this objective. Its distinctive characteristics are by subjecting a mixture of cations to a series of reagent treatments.

Zn has a larger negative reduction potential than Mn. As a result, if we add a potent oxidising agent, Mn+2 will remain unaffected and Zn will be preferentially oxidised to its +2 oxidation state. We may then segregate the two species as a result.

As a result, we can separate the two species by adding NaBiO3 to the solution of Mn+2(aq) and Zn+2(aq). Zn+2 will be converted by the NaBiO3 to Zn(OH)4 and precipitated out of the solution, but Mn+2 will remain in the solution as Mn(OH)2. Zn+2 cannot be oxidised by the other specified reagents since they lack potent enough oxidising abilities.

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AM radio can travel longer distances and is less affected by physical obstacles such as buildings and hills.

Blank 1: AM (Amplitude Modulation) and FM (Frequency Modulation) are two types of radio broadcasting.

Blank 2: AM radio stations broadcast signals in the medium frequency (MF) range, typically between 530 kHz and 1710 kHz.

Blank 3: FM radio stations broadcast signals in the very high frequency (VHF) range, typically between 88 MHz and 108 MHz.

Blank 4: The main difference between AM and FM radio broadcasting is in the way the audio signal is modulated onto the carrier wave. In AM, the amplitude of the carrier wave is varied in response to changes in the audio signal, while in FM, the frequency of the carrier wave is varied. FM radio is generally considered to provide better sound quality than AM radio, with less interference and better stereo capabilities.

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Answer:

false

Explanation:

It is the opposite. Atoms are the smallest.

Answer:

False

Explanation:

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Answer:

Glycolysis

Explanation :

Glycolysis is the first step in the breakdown of glucose to extract energy for cell metabolism.Many living organisms carry out glycolysis as part of their metabolism. Glycolysis takes place in the cytoplasm of most prokaryotic and all eukaryotic cells.

Answer:

Glycolysis is the first step in the breakdown of glucose to extract energy for cell metabolism. Many living organisms carry out glycolysis as part of their metabolism. Glycolysis takes place in the cytoplasm of most prokaryotic and all eukaryotic cells.

Oxygen is involved in the initial breakdown of glucose to pyruvic acid. Cellular respiration accomplishes two major processes: (1) it breaks glucose down into smaller molecules, and (2) it harvests the chemical energy released and stores it in ATP molecules.

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The command that allows moving a file from one location to another is the "mv command".

The mv command renames or transfers files and folders from one directory to another. A file or directory keeps its base file name when moved to a new directory. All links to other files are preserved when you transfer a file, with the exception of when you move it to a different file system. A directory and its contents are added beneath the existing directory when you transfer a directory into it.

The TargetDirectory option of the mv command allows you to provide a new file name or a new directory path name when renaming a file or directory.

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Answer:  1.8x10^-4 M H+

Explanation:  The number of moles of NaOH added to the 100 ml soultion will be equal to the number of moles of H+ present in that solution.  

Moles NaOH in 7.2 ml of 2.5x10^-3 M NaOH

(2.5x10^-3 M NaOH) is the same as 2.5x10^-3 moles NaOH/liter

(2.5x10^-3 moles NaOH/liter)*(7.2 ml)*(1 liter/1000ml) = 1.8x10^-4 moles NaOH used to titrate 100 ml of the acid.  That means there was 1.8x10^-4 moles of H^+ in 100 ml.  

Concentration of H^+ = (1.8x10^-4 moles H)/0.100 l) = 1.8x10^-4 M H+

(pH of 3.74)

The molar concentration of a 12% sodium chloride solution is approximately 2.05 M.

To determine the molar concentration of a 12% sodium chloride solution, we need to convert the given percentage concentration into molarity.

First, we need to understand that the percentage concentration refers to the mass of the solute (sodium chloride) relative to the total mass of the solution.

In this case, a 12% sodium chloride solution means that there are 12 grams of sodium chloride in 100 grams of the solution.

To convert this into molar concentration, we need to consider the molar mass of sodium chloride, which is 58.5 g/mol.

We can start by calculating the number of moles of sodium chloride in 12 grams:

Moles of sodium chloride = mass of sodium chloride / molar mass of sodium chloride

Moles of sodium chloride = 12 g / 58.5 g/mol = 0.205 moles

Next, we calculate the volume of the solution in liters using the density of the solution. Since the density is not provided, we assume a density of 1 g/mL for simplicity:

Volume of solution = mass of solution / density

Volume of solution = 100 g / 1 g/mL = 100 mL = 0.1 L

Finally, we calculate the molar concentration (Molarity) by dividing the number of moles by the volume in liters:

Molar concentration = moles of solute / volume of solution

Molar concentration = 0.205 moles / 0.1 L = 2.05 M

Therefore, the molar concentration of a 12% sodium chloride solution is approximately 2.05 M.


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Answer: First one is slump, then mudflow, then landslide.

Explanation:

Just got it right on e2020

Answer:

First one is slump, then mudflow, then landslide.

Explanation:

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The equilibrium constant, Keq, for the reaction is 13.5.

The equilibrium constant, Keq, for a reaction is the value of a chemical reaction's reaction quotient at chemical equilibrium, which is a condition that a dynamic chemical system approaches when enough time has passed and at which its composition has no discernible tendency to change further.

For a reaction: A + B ⇆ C + D

Keq = [C] [D] / [A] [B]

For the given reaction,  N₂ + 3 H₂ ⇆ 2 NH₃

where the equilibrium concentrations are;

[N₂] = 2 M

[H₂] = 1

[NH₃] = 3

Keq; 3³ / (2 * 1³)

Keq = 13.5

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Answer: The type of reaction shown is a cracking reaction.

Explanation: Cracking is the process of breaking down larger hydrocarbons into smaller, more useful hydrocarbons. In this case, octane (C8H18) is being cracked into ethene (C2H4) and a product P (CxHy).

The  key difference in between the chemical and the nuclear reactions is Chemical reaction will occurs outside the nucleus and the Nuclear reaction occurs inside the nucleus.

The Chemical reaction will normally occurs outside the nucleus. The Nuclear reaction will only occurs inside the nucleus. When the chemical reactions occur the elements will hold their identity and the nuclei of the atoms also be remains unchanged. During the nuclear reactions, the nuclei of the atoms will changes completely and the new elements are formed.

The chemical reactions will be balance in terms of the mass and the nuclear reaction will occurs in the terms of the mass and the energy.

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yes the answer is right bro

Answer:

there is about 5110.01 hours in 7 months

Explanation:

because no 7 months in a row have the same amount of months so about 730.001428571 days in 7 months times the number of months. Hope this helps!

Answer: 730.08 hours x 7= will get you your answer

Explanation: Because, the average month is 30.42 days. A day is 24 hours, so the average month is 730.08 hours ( 30.42 days * 24 hours ).  Just do the math above and that should be your answer.

HCl compund contains covalent bond.

When 2 atoms exchange one or a lot of pairs of electrons, a covalent bond is formed.

A chemical bond is formed once the distinction between the leptonegativities of 2 atoms is just too tiny for associate electron transfer to occur and manufacture ions.

Let's determine which choice contains covalent bonding.

1. Al-N bonds exhibit some ionic properties in addition to being partially covalent. structure, 1.633, which is most likely influenced by the ionic properties of Al-N bonds [3].

2. Ca and N have electronegativities of 1.0 and 3.0, respectively. Therefore, the difference in electronegativity between Ca and N is (3.0-1.0) or 2.0. Thus, an ionic link exists between Ca and N. Ca3N2 C a 3 N 2 is hence an ionic compound.

3. Since covalent compounds are created by the exchange of electrons, NaCl is not a covalent compound; rather, it is an ionic compound.

4. Because the difference in electronegativity between hydrogen and chloride is less than 2.0, HCl is a covalent compound.

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Answer:

Too much iodine can be harmful if you don't need it. You don't need to take iodine (supplements) if you already have a varied and balanced diet.

Explanation:

Iodine is already contained in table salt so you don't need to add any more.

what do you need answers too ?

Answer:

fjajgjjsjdjfsnndnfnsnfnbansfngjajjfhfsjjtgk

Answer:

Asexual reproduction does not involve sex cells or fertilisation . Only one parent is required, unlike sexual reproduction which needs two parents. Since there is only one parent, there is no fusion of gametes and no mixing of genetic information.

The main difference between sexual and asexual reproduction is that sexual reproduction involves the fusion of gametes, while asexual reproduction does not.

In sexual reproduction, offspring are produced through the fusion of gametes (reproductive cells) from two parent organisms. This fusion, known as fertilization, results in offspring that inherit genetic material from both parents. This genetic recombination introduces variation in the offspring, promoting genetic diversity within a population.

In contrast, asexual reproduction involves the production of offspring without the involvement of gametes or the fusion of genetic material from two parents. A single parent organism reproduces by generating genetically identical or near-identical offspring through various methods such as budding, fragmentation, or binary fission. Asexual reproduction typically leads to offspring that are genetically identical to the parent, lacking the genetic diversity observed in sexual reproduction.

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1)The total yield of ATP from the complete oxidation of palmitic acid, a 16-carbon saturated fatty acid, is 129 ATP molecules.

2)The total yield of ATP from the complete oxidation of palmitic acid is 78 ATP molecules.

1) The oxidation of palmitic acid involves a series of reactions known as beta-oxidation, which occurs in the mitochondria. Each round of beta-oxidation involves four steps: oxidation, hydration, oxidation, and thiolysis.

In the oxidation step, two carbon atoms are removed from the palmitic acid chain in the form of acetyl-CoA, which enters the citric acid cycle (also known as the Krebs cycle). For each round of beta-oxidation, one molecule of FADH2 is produced, which can generate 1.5 ATP molecules during oxidative phosphorylation.

The hydration and second oxidation steps are repeated until the entire palmitic acid chain is converted into acetyl-CoA molecules. For a 16-carbon palmitic acid, there will be seven rounds of beta-oxidation, resulting in eight acetyl-CoA molecules.

During the citric acid cycle, each acetyl-CoA molecule generates three NADH molecules, one FADH2 molecule, and one GTP (which can be converted to ATP). The NADH and FADH2 molecules are then used in oxidative phosphorylation to generate ATP.

Considering the eight acetyl-CoA molecules, the total yield is as follows:

24 NADH molecules (8 acetyl-CoA * 3 NADH/acetyl-CoA)

8 FADH2 molecules (8 acetyl-CoA * 1 FADH2/acetyl-CoA)

8 GTP molecules (8 acetyl-CoA * 1 GTP/acetyl-CoA)

2) The NADH molecules can generate 2.5 ATP molecules each during oxidative phosphorylation, while the FADH2 molecules can generate 1.5 ATP molecules each. The GTP molecules can be directly converted to ATP.

Calculating the total ATP yield:

NADH: 24 NADH * 2.5 ATP/NADH = 60 ATP

FADH2: 8 FADH2 * 1.5 ATP/FADH2 = 12 ATP

GTP: 8 GTP * 1 ATP/GTP = 8 ATP

Adding up the ATP generated from NADH, FADH2, and GTP, the total yield is 60 ATP + 12 ATP + 8 ATP = 80 ATP.

Additionally, there are two ATP molecules consumed in the activation of palmitic acid, resulting in a net gain of 80 ATP - 2 ATP = 78 ATP.

Therefore, the total yield of ATP from the complete oxidation of palmitic acid is 78 ATP molecules.

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Answer:

Blue is the metal Metals react by losing electrons from the outermost shell, which means their outermost electrons and now closer to the nucleus (one shell lower) and thus they get smaller when you go from metal atom to metal ion.

Explanation: