Which describes the amplitude of a wave when it carries more energy?

It is higher.
It is lower.
It is darker.
It is lighter.

Answer:

3

Explanation:

Answer:

Explanation:

47 i took the test

Silver (Ag) has 47 protons, 60 neutrons, and 47 electrons in each atom. Based on this information, the mass number of the silver would be 107.

The total number of protons present in an atom is known as the atomic number of that atom. The atomic number has no correlation either with the number of neutrons or the number of electrons present inside an atom.

As given in the problem Silver (Ag) has 47 protons, 60 neutrons, and 47 electrons in each atom.

The atomic number of the silver =  number of protons

                                                     = 47

The mass number of the silver = number of protons + number of neutrons

                                                   =47 + 60

                                                   =107

Thus, based on the given information the mass number of the silver would be 107.

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Emerging scientific ideas are new theories or ideas that are gaining attention in the scientific community, but have not yet been fully accepted or confirmed.

Emerging ideas refer to the new and innovative ideas or theories that have yet to gain full scientific acceptance. While a scientific consensus is a view or theory that has been universally accepted and confirmed by multiple experiments or research, an emerging scientific idea is a new and unproven theory or idea that is gaining attention in the scientific community. These emerging ideas may also be referred to as scientific hypotheses. In contrast to scientific consensus, emerging scientific ideas have not yet been subjected to rigorous testing and confirmation.

They are generally proposed to explain new observations or experimental results, which have not yet been fully understood or explained by established scientific theories. Emerging scientific ideas can have the potential to challenge the current scientific consensus. If an emerging scientific idea is found to be valid, it can ultimately lead to the establishment of a new scientific consensus. For example, the emerging scientific idea of the Higgs boson particle led to the discovery of a new field in particle physics, which is now an established scientific consensus.

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Answer:Papillae contain taste buds that help animals determine whether food is safe to eat.

Explanation:

Answer:

Ice is a molecular and crystalline solid.

Explanation:

Water freezes at 0 degrees Celsius; it has strong molecular bonds between the hydrogen and oxygen atoms of each molecule, and weaker intermolecular bonds between each molecule of water. The polarity of the molecules helps align them into an organized, repeating patterned, crystalline structure when a solid.

Answer:

............................

Explanation:

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Answer:

\(\boxed {\boxed {\sf 2.8 \ g/mL}}\)

Explanation:

Density is an object's mass per unit volume. The formula for calculating density is:

\(\rho= \frac{m}{v}\)

The mass of the object is 5.8 grams and the volume is 2.1 milliliters.

Substitute the variables into the formula.

\(\rho = \frac{5.8 \ g}{2.1 \ mL}\)

Divide.

\(\rho = 2.761904762 \ g/mL\)

The original values of mass and volume (5.8 and 2.1) have 2 significant figures, so our answer must have the same. For the number we calculated, that is the tenths place. The 6 in the hundredth place tells us to round the 7 in the tenth place up to an 8.

\(\rho \approx 2.8 \ g/mL\)

The density of the object is approximately 2.8 grams per milliliter.

Crystallization of sugar in a syrup can be avoided by adding inverted sugar. Invert sugar is a mixture of glucose and fructose, produced from sucrose. It is produced by hydrolysis of sucrose by heating with water and an acid such as lemon juice, vinegar or cream of tartar.

By adding invert sugar to a syrup, it reduces the amount of sucrose present in the solution and promotes the formation of glucose and fructose. This causes the solution to become more saturated and the syrup less likely to crystallize. Invert sugar is often used in the production of confectionery, ice cream, and other sweets.Inverted sugar can also be used to improve the texture and quality of baked goods. It is often used in cake recipes to enhance the flavor and increase the shelf life. It can also be used as a substitute for honey or corn syrup in recipes that require a liquid sweetener.In conclusion, the addition of invert sugar helps to prevent crystallization of sugar in syrup. Invert sugar is a mixture of glucose and fructose produced from sucrose by hydrolysis.

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Answer:  A. solid, compound

Explanation:

Because copper sulphate is a compound and it is a blue solid powder

Hope that help :)

Answer:

The gas particles must touch a cold surface to start to slow down and get closer to form a liquid.

In an electromagnetic spectrum, bright red light would produce  photoelectric effect on a strip of metal.

The electromagnetic spectrum is made up of waves that convey radiant electromagnetic energy and are comprised of electromagnetic fields. These waves may propagate over space. The electromagnetic waves that make up radiation are coordinated oscillations of the electric and magnetic fields. They develop as a result of periodic shift in both the electric and magnetic fields.

All electromagnetic waves in a vacuum move at the same speed, which is equal to the speed of air. The frequency or wavelength of a radio wave determines where it is located in the electromagnetic spectrum. They are produced when electrically charged particles accelerate and communicate with other charged particles.

Option C is the correct answer.

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Answer:bright red light

Explanation:

ed c

The solute which  provide the sharper end point in a titration with 0.10 M is the question content area , 0.10 M sodium phenolate. Hence option b is correct.

Titration is defined as the assessing how much of one ingredient is needed to react with another to determine how much of that substance is present in a liquid. The titration is used to determine the equivalence point, or the point at which chemically equivalent amounts of the reactants have been mixed.

The base will be firmer and the terminal point will be sharper the lower the value is. Therefore, it is possible to predict which solute will produce a sharper end point by comparing the values of the two solutes that are presented.

Thus, the solute which  provide the sharper end point in a titration with 0.10 M is the question content area , 0.10 M sodium phenolate. Hence option b is correct.

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Answer:

The atoms are vibrating in place.

Explanation:

One of the properties of an ionic substance is the possession of a crystalline structure. As Gerry observed the salt under a microscope, he discovered that it has a crystalline structure. Crystalline salts are all ionic in nature, hence the salt observed by Gerry is an ionic salt.

Solids containing a definite crystalline structure always has their particles vibrating in place. This is immediately evident as Gerry looks at the salt through a microscope.

Answer:

D.The atoms are vibrating in place

Explanation:

The reaction between 2-methyl-2-pentanol and sulfuric acid to yield 2-methyl-2-pentene goes via an elimination reaction

Elimination reactions are those that proceed by the removal of one or more atoms or functional groups from the reactants, resulting in the formation of a new double bond or π bond in a product. An example of an elimination reaction is the dehydration of alcohols.In this particular reaction, 2-methyl-2-pentanol (an alcohol) reacts with sulfuric acid to produce 2-methyl-2-pentene, which is an alkene.

The reaction mechanism proceeds via an elimination reaction, where the OH group and a hydrogen ion (H+) are removed from the reactant, resulting in the formation of a double bond between the adjacent carbon atoms in the product.The reaction can be represented as follows:CH3C(CH3)2CH(OH)CH3 + H2SO4 → CH3C(CH3)2C=CH2 + H2O + H2SO4In conclusion, the reaction between 2-methyl-2-pentanol and sulfuric acid to yield 2-methyl-2-pentene goes via an elimination reaction.

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The Lewis structure for NH\(^{2}\)CH\(^{2}\)CO\(^{2}\)H is:

H     H
|     |
N—C—C—O—H
|     |
H     OH
There are 8 single bonds, 1 double bond, and 3 lone pairs in the NH\(^{2}\)CH\(^{2}\)CO\(^{2}\)H molecule.

Calculate the total number of valence electrons in the molecule.
N: 5 valence electrons
H: 1 valence electron (x4 for 4 hydrogen atoms)
C: 4 valence electrons (x2 for 2 carbon atoms)
O: 6 valence electrons (x2 for 2 oxygen atoms)

Total valence electrons: 5 + (1x4) + (4x2) + (6x2) = 24 valence electrons. Arrange the atoms in the molecule.
- N is bonded to two H atoms.
- The first C atom is bonded to the N atom and two H atoms.
- The second C atom is bonded to the first C atom and a double-bonded O atom.
- The second O atom is bonded to the second C atom and a H atom.

Connect the atoms with bonds and distribute the remaining electrons.
- N-H single bonds (x2): 4 electrons
- N-C single bond: 2 electrons
- C-H single bonds (x2): 4 electrons
- C-C single bond: 2 electrons
- C=O double bond: 4 electrons
- C-O single bond: 2 electrons
- O-H single bond: 2 electrons

Distribute the remaining electrons as lone pairs.
- N: 1 lone pair (2 electrons)
- O: 2 lone pairs (4 electrons)

Now, let's answer the questions based on the Lewis structure:
- # of single bonds in the entire molecule: 8
- # of double bonds in the entire molecule: 1
- # of lone pairs in the entire molecule: 3

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The amount of 4.86 ml needed to completely react with 11.73 ml of 1.006 m ca(oh)2 is 4.86 ml.

given data to  be calculated:-

Ca3(PO4)2 (s) + 6H2O can be used to calculate this: 3Ca(OH)2 (aq) + 2H3PO4 (aq) (l)

ca moles (OH)

2  present 11.00 moles of H3PO4 are required; 7.33 moles of H3PO4 in a volume of ml are required; 7.33/1.508 = 4.86.

The direction that creates more moles of gas benefits from an increase in volume, and since there are more moles of products in this case, the reaction will shift to the right and produce more moles of products.

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Answer:sodium

Explanation:

Sodium

"All zero greenhouse gas emission fuel sources are also renewable". The statement is false.

While many renewable energy sources such as solar, wind, and hydropower produce zero greenhouse gas emissions, not all zero-emission fuels are renewable.

For example, nuclear power is a zero-emission source of electricity, but it is not considered a renewable energy source because it relies on the mining and processing of non-renewable uranium.

Renewable energy sources are defined as those that can be replenished naturally and sustainably within a human timescale. These include solar, wind, hydropower, geothermal, and biomass. Zero-emission fuels refer to any fuel source that emits no greenhouse gases during use, such as hydrogen fuel cells.

While renewable energy sources often overlap with zero-emission fuels, not all zero-emission fuels are renewable. Therefore, it is important to differentiate between the two terms when discussing the sustainability and environmental impact of different energy sources.

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Mgco3 is the compound has the atom with the highest oxidation number.

Oxidation is the cycle when a molecule loses an electron in a response with oxygen and water. A seared apple or a rusted bike are normal spots where oxidation should be visible. Oxidation states are utilized for "electron accounting". Likewise, oxidation states are a significant device for deciding responding proportions. Oxidation states are something of a "bookkeeping fiction", used to depict where electrons are investing the majority of their energy in a particle. Oxidation number is likewise alluded to as oxidation state. Nonetheless, at times these terms can have an alternate significance relying upon regardless of whether we are thinking about the electronegativity of the particles.

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It is due to low volume of electron that causes large distance between two electrons.

When the added electron goes to smaller quantum level, the repulsive force between two electrons is less because the electron which is added occupies small space due to less volume so there is a large distance between two electrons that leads to less force of repulsion.

If the electron has more volume so it occupies more space and there will more repulsive force between two electrons so that's why we can say that the smaller volume of electron is the reason of less repulsive force.

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This question is asking for the pH of a buffer solution between ammonia and nitric acid, with given volumes and concentrations. At the end, the result turns out to be 10.488.

In chemistry, buffers are known as substances attempting to hold a relatively constant pH by mixing and acid and a base (weak and strong). In such a way, for the substances given, the first step will be to calculate the consumed moles as they are mixed:

\(n_{NH_3}=0.1L*0.1mol/L=0.01mol\\\\n_{HNO_3}=0.09L*0.1mol/L=0.009mol\)

Now, since ammonia is in a greater proportion, one can calculate how much of it is left after being consumed by the nitric acid:

\(n_{NH_3}^{left}=0.01mol-0.009mol=0.001mol\)

And its new concentration:

\([NH_3]=\frac{0.001mol}{0.1L+0.09L} =0.00526M\)

Next, with ammonia's ionization:

\(NH_3+H_2O\rightleftharpoons NH_4^++OH^-\)

We set up the equilibrium expression based on ammonia's Kb:

\(Kb=\frac{[NH_4^+][OH^-]}{[NH_3]}\)

Which can be solved by introducing x and using ammonia's Kb:

\(1.8x10^{-5}=\frac{x^2}{0.00526M}\\ \\\)

Then, we solve for x which is also equal to the concentration of ammonium and hydroxide ions in the solution:

\(x=\sqrt{0.00526*1.8x10^{-5}}=0.000308M\)

Ultimately, we calculate the pOH and then turn it into pH with:

\(pOH=-log(0.00308)=3.512\\\\pH=14-3.512=10.488\)

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Answer: Unbalanced Forces

Explanation: The bigger the unbalanced force acting on the object the bigger the acceleration of the object. The more mass the object has, the more inclined it is to resist any change to its motion.

The composition of the vapor in the sealed bottle of carbonated water at 25°C is approximately 8.2×10⁻⁴ mol fraction of CO₂ and 0.9992 mol fraction of H₂O. Fugacity is equal to the partial pressure: fCO₂_vapor = PCO₂ fH₂O_vapor = PH₂O fCO₂_liquid = KH * PCO₂ fH₂O_liquid = PH₂O = 0.9992

To determine the composition of the vapor and the pressure in a sealed bottle of carbonated water, we can use the concept of Henry's law and the Raoult's law. Assumptions: Ideal gas behavior for CO₂ and H₂O., Negligible interaction between CO₂ and H₂O molecules.The vapor phase is ideal and follows Raoult's law.

The liquid phase is ideal and follows Henry's law. The total pressure inside the sealed bottle is the sum of the partial pressures of CO₂ and H₂O. Given: Carbonation level (CO₂ concentration in water) = 2 g/L Temperature (T) = 25°C = 298 K Saturation pressure of water (P°H₂O) = 0.032 bar Henry's constant for CO₂ in water (KH) = 1670 bar

First, we need to convert the CO₂ concentration from g/L to mol fraction: CO₂ concentration (nCO₂) = 2 g/L / molar mass of CO₂ = 2 g/L / 44.01 g/mol ≈ 0.0454 mol/L CO₂ mol fraction (xCO₂) = nCO₂ / (nCO₂ + nH₂O) . To find the composition of the vapor, we can use Raoult's law: Partial pressure of CO₂ (PCO₂) = xCO₂ * P°CO₂ Partial pressure of H₂O (PH₂O) = xH₂O * P°H₂O

Since the system is sealed, the total pressure (P_total) is given by: P_total = PCO₂ + PH₂O. Now, let's calculate the composition and the pressure: xCO₂ = 0.0454 / (0.0454 + 55.51) ≈ 8.2×10⁻⁴ (mol fraction of CO₂) xH₂O = 55.51 / (0.0454 + 55.51) ≈ 0.9992 (mol fraction of H₂O).PCO₂ = xCO₂ * P°CO₂ = 8.2×10⁻⁴ * P°CO₂ PH₂O = xH₂O * P°H₂O = 0.9992 * 0.032 bar

P_total = PCO₂ + PH₂O,To calculate the fugacity of each component, we assume ideal gas behavior, so the fugacity is equal to the partial pressure: fCO₂_vapor = PCO₂ fH₂O_vapor = PH₂O fCO₂_liquid = KH * PCO₂ fH₂O_liquid = PH₂O

Therefore, the composition of the vapor in the sealed bottle of carbonated water at 25°C is approximately 8.2×10⁻⁴ mol fraction of CO₂ and 0.9992 mol fraction of H₂O. The total pressure inside the bottle is the sum of the partial pressures of CO₂ and H₂O, which can be calculated using the given values and the composition.

Please note that the given Henry's constant for CO₂ in water (KH) is exceptionally high (1670 bar), which seems to be an outlier value. Typically, Henry's constants for CO₂ in water are much smaller, around 3-4 bar. Therefore, the calculated values for fugacity and pressure may not be realistic based on the given data.

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According to World Population Review 2022 the safest country to live are as follows.

These countries are listed safe by calculating global peace index.

This index measures the nation's and regions peacefulness and is finally reviewed by Institute of Economic and Peace (IEP).

The role of IEP is to measure peace at the worldwide and country level degree and lets us to evaluate the social, political and financial elements that create peace. Each year the Institute for Economics and Peace produces the Global Peace Index, the world’s main degree of countrywide peacefulness, rating 163 nations in line with their ranges of peace.

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Answer:

The lack of heat

Explanation:

when vapor gets cold enough, it reverts back to a liquid, when liquid gets cold enough, it freezes into a solid.

Answer:

analyze data and construct a conclusion  

Explanation:

The volume of the air collected at the pressure of 150 atm is 13.33 litres.

The ideal gas equation says,

The pressure P, the volume V, the number of moles n, the gas constant R and the temperature t of the gas are related with each other as,

PV = nRT

If the number of moles and the temperature are constant,

PV = Constant

So, we can write,

P₁V₁ = P₂V₂

P₁ is the pressure of the scuba tank is 1 atm and the volume V₁ of the scuba tank is 2000L while P₂ is pressure of the other tank is 150 atm. Hence we can write,

2000 x 1 = V₂ x 150

V₂ = 13.33 Liters.

So, the volume of the air is 13.33 litres

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