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What do we call the invisible force exerted by magnets?

A. Magnetic force

B. Electromagnetic force

C. Electric force

D. Applied force

Answer: C

Explanation:can’t be A starts with a word that begins in a intro can be b those are textual evidence can’t be D also referring to textual evidence in a first pattern of a end RACE or PEMDOS

Answer:

It can be formed either through a process of evaporation or sublimation. Unlike clouds, fog, or mist which are simply suspended particles of liquid water in the air, water vapour itself cannot be seen because it is in gaseous form

Explanation:

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Answer:

No. Unlike clouds, fog, or mist which are simply suspended particles of liquid water in the air, water vapour itself cannot be seen because it is in gaseous form

Independent Variable IV is atmospheric temperature, Dependent Variable (DV) are 70°,80°, and 90° , Control Group are  researchers and Constants are humidity and temperature.

Atmospheric temperature is a measurement of temperature at different and various levels of the Earth's atmosphere and above it.

It is effected by many factors, including incoming solar rays, and the humidity and how far from the sea level.

Therefore, Independent Variable IV is atmospheric temperature, Dependent Variable (DV) are 70°,80°, and 90° , Control Group are  researchers and Constants are humidity and temperature.

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If I accidentally left my working stock in room temperature, there are a few steps that I would take in order to assess the damage and salvage the situation. First, I would check the expiration date of the stock to see if it was still viable before being exposed to room temperature. If it had expired, then there may not be much I could do to save it.

Assuming the stock was still viable, I would then inspect it for any signs of contamination or degradation.

If the stock had become contaminated or had started to degrade, then it would need to be discarded.
If the stock appeared to be still usable, I would then perform a series of tests to determine if it was still functional.

I would conduct a viability assay, such as a colony forming unit (CFU) assay or a growth curve analysis, to determine if the stock was still capable of growing and dividing.

If the stock was still functional, then I would use it for experiments as planned, but with the understanding that it may not perform as well as a freshly prepared batch.
To prevent this situation from happening in the future, I would take steps to label and store my stocks properly and to set reminders for myself to check on their status regularly.

It's always better to be safe than sorry when it comes to important reagents and stocks in the lab.

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Resonance is a phenomenon in which the delocalization of electrons within a molecule creates multiple resonance structures. This delocalization of electrons in aromatic rings results in a more stable system, reducing the overall energy of the molecule.

The stability of aromatic rings arises from the concept of resonance. Aromatic compounds possess a cyclic structure with a conjugated system of π-electrons. This arrangement allows for the delocalization of π-electrons over the entire ring, resulting in a distribution of electron density throughout the system.

In aromatic compounds, such as benzene, the π-electrons are not localized between specific carbon atoms but are instead spread out across the entire ring. This delocalization of electrons leads to the formation of multiple resonance structures, where the π-electrons can freely move within the ring.

The presence of resonance stabilizes the aromatic ring by distributing the electron density evenly, preventing the accumulation of charge in any one area. This results in a lower overall energy for the molecule, making aromatic compounds more stable compared to non-aromatic compounds.

The increased stability of aromatic rings contributes to their characteristic resistance to reactions, high boiling points, and low reactivity towards addition reactions. The concept of resonance plays a crucial role in explaining the enhanced stability observed in aromatic compounds.

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Answer:

Iron slowly reacts with oxygen and forms rust. In this case, the reactants are iron and oxygen. The product is rust, or iron oxide. The chemical equation looks like this:

Explanation:

iron + oxygen → iron oxide

Answer:

Iron slowly reacts with oxygen and forms rust. In this case, the reactants are iron and oxygen. The product is rust, or iron oxide. The chemical equation looks like this:

iron + oxygen → iron oxide

Explanation:

This was the answer straight from Plato. I hope that this helped you, please mark me the brainiest, like and rate my answer if it did! :)

The equilibrium constant expression depends on the Stoichiometry.

The equilibrium constant expression depends on the Stoichiometry. The equilibrium-constant expression depends on the Stoichiometry of the reaction as the reaction of coefficients become powers to which the concentration terms are raised. An equilibrium constant is calculated from the  partial pressures (Kp) is related to K by the ideal gas constant (R), the temperature (T), and the change in the number of moles of gas during the reaction.

So we can conclude that: The equilibrium constant expression depends on the Stoichiometry.

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Answer:

The best description of a scientific model is a physical and/or conceptual representation of a system of ideas, events, or processes.

Explanation:

Scientists seek to identify and understand patterns in our world by drawing on their scientific knowledge to offer explanations that enable the patterns to be predicted.

Answer:

Explanation:

It's called a Redbox reaction because when a change in oxidation number occurs in a reaction, with both an increase in number and a decrease in number, then the reaction is classified as redox. If this doesn't occur, then the reaction is non- redox.

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The solubility of the alcohols in hexane can be ranked as follows, from most soluble to least soluble: methanol > ethanol > propanol > octanol. The trend in solubility is mainly determined by the size of the alcohol molecules and their ability to form hydrogen bonds with the hexane solvent.

The solubility of a substance in a specific solvent is primarily determined by the compatibility of intermolecular forces between the solute and solvent molecules. In this case, we are comparing the solubility of alcohols (methanol, ethanol, propanol, and octanol) in hexane.

Methanol (CH3OH) is the most soluble alcohol in hexane due to its small molecular size and the presence of a hydroxyl group (-OH). Methanol molecules can form strong hydrogen bonds with hexane molecules, facilitating their dispersion and solubility.

Ethanol (C2H5OH), although slightly larger than methanol, also exhibits good solubility in hexane. Like methanol, ethanol forms hydrogen bonds with hexane, contributing to its solubility.

Propanol (C3H7OH) is larger than both methanol and ethanol, and as a result, its solubility in hexane decreases. While propanol can still form hydrogen bonds with hexane, the increased molecular size hinders its ability to fit well into the hexane solvent, resulting in reduced solubility.

Octanol (C8H17OH) is the largest alcohol molecule among the given options and has more pronounced hydrophobic properties. Its molecular size and hydrophobicity make it less compatible with the nonpolar hexane solvent, resulting in the lowest solubility among the four alcohols.

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Answer:

2.The water, having a stronger concentration, moves inside the tea bag.

Explanation:

This is a form of osmosis called hypotonic, in which a solution with higher amounts of fluids than the cell will cause the cell to swell and expand. The opposite happens in hypertonic when the solution has fewer fluids than the cell, causing the cell to shrink. Essentially the liquid moves from the higher concentration to the lower one.

Answer and Explanation:

When methane (CH4) and chlorine (Cl2) react, a substitution reaction takes place. Specifically, the reaction is a halogenation reaction, in which one or more hydrogen atoms in the methane molecule are replaced by chlorine atoms. The reaction can be represented by the following equation:

CH4 + Cl2 → CH3Cl + HCl

In this equation, CH3Cl represents chloromethane, which is a type of organochlorine compound. The reaction is typically initiated by ultraviolet (UV) light or heat, and it proceeds through a series of free radical chain reactions. The products of the reaction are typically a mixture of chloromethane and hydrogen chloride (HCl) gas.

The pH at the equivalence point in the titration of a 16.5 mL sample of a 0.466 M aqueous nitrous acid solution with a 0.388 M aqueous barium hydroxide solution can be determined by analyzing the reaction stoichiometry and the properties of the resulting solution.

In the titration of nitrous acid (HNO2) with barium hydroxide (Ba(OH)2), a neutralization reaction occurs, resulting in the formation of a salt and water. The balanced chemical equation for the reaction is:

HNO2 + Ba(OH)2 → Ba(NO2)2 + H2O

At the equivalence point, the moles of acid and base are equal, which allows us to calculate the concentration of the resulting salt. In this case, 16.5 mL of a 0.466 M nitrous acid solution is being titrated with a 0.388 M barium hydroxide solution. By multiplying the volume of the base solution (16.5 mL) by its concentration (0.388 M), we can determine the number of moles of barium hydroxide used.

Next, we use the stoichiometry of the reaction to determine the number of moles of nitrous acid that were present in the initial solution. Since the acid and base react in a 1:1 ratio, the number of moles of nitrous acid will be equal to the number of moles of barium hydroxide used.

Finally, we calculate the concentration of the resulting salt (Ba(NO2)2) by dividing the number of moles of nitrous acid by the total volume of the solution at the equivalence point (16.5 mL).

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Answer:

There is 5.56 g of gold for every 1 g of chlorine

Explanation:

The question is to determine the simplest mass ratio of gold to Chlorine in the compound.

Since the mass of gold in the compound compared to chlorine is 15.39 g for every 2.77 g, the mass of gold per gram of chlorine is given as:

15.39 / 2.77 = 5.56 g of gold to two decimal places

Therefore, for every 5.56 g of gold, there is 1 g of chlorine.

Note : The ratio in which different elements combine by mass to form a compound is given by the law of constant composition which states that, "all pure samples of a particular chemical compound contain the same elements combined in the same proportion by mass.

Answer:

A. structural adaptation

Explanation:

Hope This Helps!!

God Bless!!

~DuffyDuck~

Answer:

Anticline

Other than that Just A C:

Explanation:

Answer:

A

Explanation:

Answer:

We can see that at the boiling point, both liquid and gas are in equilibrium with one another. This is true for any applied pressure and boiling point temperature combination. As a result, we see liquid-gas equilibrium for every temperature and pressure combination on the graph in Figure 13.6.

There is really only one way a sealed alpha source can hurt you. It is B. By ingestion.

Alpha is the first letter of the Greek alphabet. within the gadget of Greek numerals, it has a price of 1. Alpha is derived from the Phoenician letter aleph, that's the West Semitic word for "ox". Letters that arose from alpha include the Latin letter A and the Cyrillic letter А.

Alpha refers to a dominant person or their conduct, in particular with admire for socially competitive, hyper-masculine men.The word "Alpha" comes from the primary letter of the Greek alphabet and symbolizes the beginning or the start line of a journey.

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Answer:

Every atom has no overall charge (neutral). This is because they contain equal numbers of positive protons and negative electrons. These opposite charges cancel each other out making the atom neutral.

Explanation:

Answer:

19.6 g of N2

Explanation:

2 NH3 + 3 CuO g 3 Cu + N2 + 3 H2O

In the above equation how many grams of N2 can be made when 167 grams of CuO are consumed?

Round your answer to the nearest tenth. If you answer is a whole number like 4, report the answer as 4.0

Use the following molar masses. If you do not use these masses, the computer will mark your answer incorrect.:

Hydrogen

1

Nitrogen

14

Copper

63.5

Oxygen

16

first, we should rewrite the equation without using "g " for the yields sign

2 NH3 + 3 CuO ---------> 3 Cu + N2 + 3 H2O

next we need the molar mass of the compounds

CuO =63.5 + 16 = 79.5

N2 = 2 x 14 = 28

next , we see that 3 moles of CuO produce 1 mole of N2

167 g of CuO is 167/79.5 = 2,1 moles of CuO

since 3 moles produce 1 mole of N2

2,1 moles produce 2.1/3 = 0.7 moles of N2

1 mole of N2 is 28 gm

0.7 moles is 28x0.7 = 19.6 g of N2

Answer:

this isn't really a answer but that really nice you found someone u love

whenever I look at him, time stops. whenever I can make him smile or laugh, my heart melts. whenever he looks at me or stares at me, I blush. love to me is being in love with the person who makes your the happiest and being in love with the person who you want to spend the rest of your life with. being in love means doing anything that'll make them happy. I would do anything for just his smile. seeing him be happy is good enough for me.

The pH of the solution is 9.54.

(a) To calculate the pH of the solution containing sodium formate and formic acid, we need to first write the equation for the dissociation of formic acid:

HCHO2 + H2O ⇌ H3O+ + CHO2−

The equilibrium constant expression for this reaction is:

Ka = [H3O+][CHO2−]/[HCHO2]

We can use an ICE table to find the equilibrium concentrations:

HCHO2 + H2O ⇌ H3O+ + CHO2−

I 0.300 M 0 0

C -x +x +x

E 0.300-x x x

Substituting the equilibrium concentrations into the equilibrium constant expression gives:

1.8x10^-4 = (x^2)/(0.300-x)

Solving for x gives: x = 0.0074 M

The pH of the solution is:

pH = -log[H3O+]

= -log(0.0074)

= 2.13

Therefore, the pH of the solution is 2.13.

(b) To calculate the pH of the solution containing pyridine and pyridinium chloride, we need to first write the equation for the dissociation of pyridine:

C5H5N + H2O ⇌ C5H5NH+ + OH−

The equilibrium constant expression for this reaction is:

Kb = [C5H5NH+][OH−]/[C5H5N]

We can use an ICE table to find the equilibrium concentrations:

C5H5N + H2O ⇌ C5H5NH+ + OH−

I 0.0720 M 0 0

C -x +x +x

E 0.0720-x x x

Substituting the equilibrium concentrations into the equilibrium constant expression gives:

1.7x10^-9 = (x^2)/(0.0720-x)

Solving for x gives: x = 3.5x10^-5 M

The pOH of the solution is:

pOH = -log[OH^-]

= -log(3.5x10^-5)

= 4.46

The pH of the solution is:

pH = 14 - pOH

= 14 - 4.46

= 9.54

Therefore, the pH of the solution is 9.54.

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Answer:

I think it is more that one is correct, so sorry if I'm wrong, if it isn't, it is one of the electron bonding ones

Answer:

Gravitational potential energy depends on an object's weight and its height above the ground (GPE = weight x height).Explanation:

Answer:

meter

have a nice holiday

Answer:

The Meter

Explanation:

In the metric system, the meter is the standard measurement of length.

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Answer:

The alkanes comprise a series of compounds that are composed of carbon and hydrogen atoms with single covalent bonds. This group of compounds comprises a homologous series with a general molecular formula of C n H 2 n+2 , where equals any integer.

Explanation:

The general formula for the alkane series is CnH2n+2

In this formula:

"Cn" shows how many carbon atoms are in the alkane molecule.

"H2n+2" shows the amount of hydrogen atoms in the alkane compound, with "n" being the number of carbon atoms.

Alkanes are a group of hydrocarbons that only have single bonds between their carbon atoms. The formula says that each carbon atom is connected to two hydrogen atoms. And the total number of hydrogen atoms in an alkane molecule is two more than double the number of carbon atoms.

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Ionic bonding, as a general rule, is seen in compounds where a metal bonds with a non-metal or a semi-metal. A molecular molecule is one that has covalent bonds and is formed completely of non-metallic elements or semi-metallic elements mixed with non-metallic components.

Despite the fact that there are no free mobile ions or electrons, solid ionic compounds cannot conduct electricity, ionic compounds that are dissolved in water can. Covalent substances, on the other hand, neither display electrical conductivity in their pure state nor when they are dissolved in water. Covalent compounds have low electrical conductivity in both the solid and liquid states because they are made up of neutral molecules.Whether in a solid or liquid state, they typically have very weak electrical conductivity. The stiff structure of ionic compounds prevents them from conducting electricity while they are in a solid state, but they do so effectively when they are melted or dissolved into a solution.

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According to your observations, ionic compounds are the unknowns for conductivity.

Ionic compounds are chemical compounds composed of positively charged ions (called cations) and negatively charged ions (called anions) that are held together by electrostatic attraction. The ionic bond between these ions is formed through the transfer of one or more electrons from the cation to the anion, resulting in the formation of a stable, neutral compound. Ionic compounds typically have high melting and boiling points, are brittle and hard, and are crystalline in structure. They are also usually soluble in polar solvents like water, and they can conduct electricity when dissolved in water or in a molten state due to the presence of free-moving ions. Ionic compounds play a critical role in many areas of science, including materials science, electrochemistry, and biochemistry, and are used in a variety of applications such as batteries, and catalysis.

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