how do these results disprove the plum pudding model? keep in mind that there are 1,000,000 alpha particles passing through the gold foil per second.

Answer:

2.00 mol/L   or   2.00 M

Explanation:

500 mL ( 1 L / 1,000 mL) = 0.500 L

M =  1 mole NaNO3 /  0.500 L =   2.00 mol/L   or   2.00 M

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Explanation:

charged particles=8 which is proton and proton=no.of electron. That's why 8 particles are revolving round this center. And this atom structure is of oxygen

If the center of an atom has 8 charged particles that are protons as the neutrons are neutral there will be 8 negative charges that are electrons revolving around the center nucleus.

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether it is  solid,liquid or  gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

The protons are positively charged particles  and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged  particles and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.

Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.

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Answer:

classification enables scientists to explain the relationships between organisms, which is helpful in trying to reconstruct the evolutionary roots of a particular species. Finally, taxonomic names provide unique descriptive names for organisms. This is sometimes an issue with common names of animals.

Explanation:

Found in the Internet

The compounds that would end in  "-ide" are;

1) Na₂S

2) CO2

3) AIP

We know that chemical compounds can be identified by the name of the compound. Also, the name of the compound reflects the kind of species that we have in the compound. The task that we have here is that we need to find out the three compounds that would have the ending  "-ide" in their names.

We have to know that the names of chemical compounds are often chosen by the International Union of Pure and Applied Chemistry (IUPAC). These rules are revised from time to time and are thus updated in order to help us to identify compounds.

It is important to note that the compounds whose names are most likely to end in the term  "-ide" would be the binary compounds that are composed of the metals and the non metals.

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The relative reactivity of carbons in a C=O (carbonyl) bond and a C=N (imine) bond can be understood based on the electronic properties of the two functional groups.

In a C=O bond, the carbon atom is electron-deficient due to the strong electronegativity of the oxygen atom, which attracts electrons away from the carbon.

This electron-deficiency makes the carbon in a C=O bond relatively electrophilic, meaning it is prone to attack by nucleophiles.

In contrast, in a C=N bond, the carbon atom is less electron-deficient than in a C=O bond because nitrogen is less electronegative than oxygen. As a result, the carbon in a C=N bond is relatively less electrophilic than in a C=O bond.

Therefore, in general, carbonyl compounds (C=O) are more reactive than imines (C=N) towards nucleophilic attack due to the greater electrophilicity of the carbonyl carbon.

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Answer:

1 respuesta. fórmula empírica = CH2

Explanation:

Translatation: 1 Answer. empirical formula = CH2

Answer:

2 i think if not than its 4

Explanation:

Answer:

3 if its not than 4

Explanation:

Answer:

6 gallons of gasoline for $14.45 is the best price

Explanation:

26.29/11=2.39 $ per gallon

14.45/11=1.31 $ per gallon

In this case, the population has exceeded the available food, thus causing a decline in the population.

It is the maximum population size that an ecosystem can sustain based on the resources that it has.

Above the carrying capacity, resources become extremely limited and competition becomes stiff in the population. Thus, the population declines.

Below the carrying capacity, resources are abundant and the population grows. Most of the time, a mature population hovers around the carrying capacity of the ecosystem.  

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Answer:

Iodine 131 is an unstable/radioactive isotope of iodine and a normal atom of iodine is stable.

Explanation:

The density of gold in SI units is 19,000 kg/m³. Gold's relative density of 19 means that it is 19 times denser than water at 4°C, which has a density of 1000 kg/m³. Therefore, by multiplying the relative density of gold by the density of water, we can find the density of gold in SI units. In this case, 19 multiplied by 1000 kg/m³ equals 19,000 kg/m³, which is the density of gold in SI units.

In the context of this problem, the relative density of a substance is defined as the ratio of its density to the density of a reference substance, in this case, water at 4°C. By multiplying the relative density by the density of the reference substance, we can calculate the density of the substance in SI units.

In this example, the relative density of gold is 19, indicating that gold is 19 times denser than water at 4°C. Multiplying the relative density by the density of water (1000 kg/m³) yields the density of gold as 19,000 kg/m³ in SI units.

To summarize, the density of gold in SI units is 19,000 kg/m³. The relative density of gold is 19, indicating that it is 19 times denser than water at 4°C, which has a density of 1000 kg/m³.

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Answer:

89.6 L

Explanation:

In normal conditions,

For every 1 mole of carbon dioxide at STP, it occupies 22.4 L of volume.

============================================================

Solving :

⇒ 1 mole : 22.4 L

⇒ 1 × 4 : 22.4 × 4

⇒ 4 moles : 89.6 L

The state change occurs when the glass melts.

The matter is anything that has mass and occupies space.

The different states of matter are solid, liquid, gas, and plasma.

The properties of the different types of matter can be understood by looking at the arrangement of molecules.

When a solid substance is heated beyond its melting point, it changes its state from solid to liquid.

When liquid is heated beyond its vaporizing point, it changes its state from liquid to gas.

Solids are closely packed and have a definite shape and size.

Liquids are loosely packed and take up the space of the container.

Gas has high intermolecular spacing and the gases are not rigid.

Ground glass is melted under light heat and poured into molds.

Recycling glass involves changing the state of glass from solid to liquid state.

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Answer:

true

Explanation:

hope u like it tnxxxxx

Answer:

mesosphere

Explanation:

Answer:

a is the answer I know and if I'm right mark me brainlest

(C5H11) n-Pentyl is the major product of 4 carbon chain with a double bond between C1 and 2. there is a methyl(CH3) substituent on C 2. the alkene (C5H10) reacts with HCL .

The IUPAC name of the given reactant in the statement is  CYCLOPENTANE.

As per the given statement:

The starting is a 4 carbon chain with a double bond between C1 and 2. there is a methyl(CH3) substituent on C 2. the alkene (C5H10) reacts with HCL to give the product

Hence,

C5H10 +HCL → C5H11 +Cl2

hence,(C5H11) n-Pentyl is the major product of C5H10 +HCL → C5H11 +Cl2.

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At STP, a mole of pure gas is closest in size to a marble. As a tiny, solid material, a gram of gas at the STP is considerably smaller than a marble. D is the correct response.

At Standard Pressure and Temperature, 22.4 L of any gas will be required to hold 1 mole (STP). The Ideal Gas Law and a balanced chemical equation can be used to determine the amount or mass of gas consumed or created in a chemical process. In other words, the gas that has the greatest number of molecules of a certain gas at a given temperature will occupy the largest volume.

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Question: From the following items, which is closest in size to one mole of gas at STP?

A) A car

B) An elephant

C) A microwave

D) A marble

London dispersion forces would be the only intermolecular force holding two methane molecules together.

The least powerful intermolecular force is the London dispersion force. When the electrons in two nearby atoms occupy positions that cause the atoms to temporarily form dipoles, the consequence is the London dispersion force, a transient attractive force. The term "induced dipole-induced dipole attraction" is frequently used to describe this effect.

Argon, hydrogen gas, fluorine gas, and methane are non-polar particles that solely have London dispersion forces between their atoms or molecules.

When molecules and/or ions are sufficiently close to one another, it is presumed that these dispersion forces exist between all of them. It is believed that ions and dipoles produce stronger, farther-reaching electrical forces that work in addition to those already mentioned.

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Additionally, each of these p orbitals has the potential to simultaneously overlap with other p orbitals on both sides, creating a delocalized pi-electron cloud that extends above and below the plane of the entire ring.

What is orbital delocalization?

Any link in which the electrons have more than two nuclei to choose from is said to be delocalized.

                    The electrons in the bond are restricted to the space between the two carbon atoms in a molecule like ethylene. We refer to the electrons as being localized.

What do you mean by pi orbital delocalization?

Delocalization of the pi electrons offers the molecule additional stability by endowing the entire ring with partial double bond characteristics.

                  This additional stability is what distinguished aromatic compounds from other cyclic aliphatic compounds.

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Clothes are not hazardous waste as they are made from natural and synthetic materials. They are neither toxic nor flammable, making them safe to dispose of in regular trash. Furthermore, clothing items can often be reused, recycled, or donated, reducing environmental impact and preventing hazardous waste.

The entire energy of all internal molecular motion makes up an object's heat.The thermal energy or average heat of the molecules in a substance is measured by temperature.It is a measurement of the quantity of atoms times the energy that each atom possesses.

How do heat and temperature relate to one another?

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Answer: 157.8 g

Explanation: I hope this help my child UwU

What is the weight of the ethyl alcohol that exactly fills a 200.0 mL container the density of ethyl alcohol is 0.789 g ml?

Density review

A

B

What is the weight of the ethyl alcohol that exactly fills a 200.0 mL container? The density of ethyl alcohol is 0.789 g/mL.

g = (0.789 g/mL) (200.0 mL) = 158 g

Answer:

\(\boxed {\tt 197.25 \ grams }\)

Explanation:

The density formula is:

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

Rearrange the formula for m, the mass. Multiply both sides of the equation by v.

\(d*v=\frac{m}{v} *v\)

\(d*v=m\)

Mass can be found by multiplying the density and volume. The density of ethyl alcohol is 0.789 grams per milliliter. The alcohol fills a 250 milliliter graduated cylinder, so the volume is 250 milliliters.

\(d= 0.789 \ g/mL \\v= 250 mL\)

Substitute the values into the formula.

\(0.789 \ g/mL * 250 \ mL=m\)

Multiply. Note that the milliliters, or mL will cancel each other out.

\(0.789 \ g * 250=m\)

\(197.25 \ g=m\)

The mass of the ethyl alcohol is 197.25 grams.

Answer:

In this context, freely means that the atoms are not bonded to any other atoms.

To find the resistance R, you need the value of the resistor in ohms (Ω). The resistance represents the opposition to the flow of current in a circuit.

To find the capacitive reactance XC, you need the value of the capacitor in farads (F). The capacitive reactance represents the opposition to the flow of alternating current in a circuit due to a capacitor.

To find the inductive reactance XL, you need the value of the inductor in henries (H). The inductive reactance represents the opposition to the flow of alternating current in a circuit due to an inductor.

Once you have the values of the resistor, capacitor, and inductor, you can use the appropriate formulas to calculate the resistance or reactance. The specific formulas depend on the circuit configuration and the type of circuit (AC or DC).

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C. If  blood pressure decreases, filtration in the kidneys decreases.

D. If more blood returns to the heart, the ventricles contract more forcefully to pump it out, and this raises blood pressure.

The maintenance of blood pressure is defined as the high use of sodium in your diet and the low use of potassium in your diet can cause hypertension. It is also important to use those foods which are free from fats. It is also important that we should use fruits, vegetables, and grains in excessive amounts for the maintenance of blood pressure and for a healthy diet.

High blood pressure 190/110 mm Hg can cause the main vital organs of the body like the brain, heart, and kidney too. There are three factors that contribute to blood pressure which are resistance, blood viscosity, and blood vessel diameter.

So we can conclude that blood pressure is the pressure of circulating blood against the walls of the blood vessels.

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Which of the following statements are true of the maintenance

of blood pressure (BP)? (Read carefully and select all of the correct statements.)

A. Norepinephrine stimulates vasoconstriction in skin, viscera, and skeletal muscles, all of which lower BP.

B. Aldosterone stimulates the reabsorption of Na+ ions by the kidneys, which lowers BP.

C. If BP decreases, filtration in the kidneys decreases.

D. If more blood returns to the heart, the ventricles contract more forcefully to pump it out, and this raises BP.

E. If BP decreases, the kidneys secrete the enzyme renin, which stimulates the secretion of epinephrine to prevent a further decrease.

F. The hormone ANP increases the excretion of K+ ions by the kidneys, which helps conserve water and raise BP.

G. The hormone ADH helps the kidneys conserve water and helps prevent a decrease in BP.

H. The elasticity of the large arteries helps decrease diastolic BP.

The ketone that can be shown by the description have been shown in the image attached.

A strong analytical method known as mass spectrometry can reveal important details about the make-up, structure, and characteristics of molecules. It enables researchers to pinpoint and examine a sample's chemical and isotopic features.

The mass of a molecule or an ion can be precisely determined using mass spectrometry. The mass-to-charge ratio (m/z) measurement enables the recognition and verification of a compound's molecular formula. Particularly relevant to the study of pharmaceutical analysis, biochemistry, and organic chemistry.

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