Work, which is required to move a body from a resting position,
is called

A: kinetic energy
B: Potential Energy
C: Rotational Energy
D: Vibrational Energy

\( \huge \underline \mathtt \colorbox{cyan}{Plant cell}\)

Plant cells are considered to have cell wall

The balanced equation for the reaction between hydrochloric acid and sodium hydroxide is:

HCl + NaOH → NaCl + H2O

For which,  36.53 grams of sodium chloride will form when 25.0 g of hydrochloric acid and 25.0 g of sodium hydroxide are mixed.

The balanced equation for the reaction between hydrochloric acid and sodium hydroxide is:

HCl + NaOH → NaCl + H2O

When 25.0 g of sodium hydroxide is mixed with 25.0 g of hydrochloric acid, the amount of sodium hydroxide is the limiting reagent, since the amount of hydrochloric acid is in excess. To find out how many grams of sodium chloride form, we need to use stoichiometry. Let's start by finding the number of moles of sodium hydroxide we have:

n = m/Mn = 25.0 g / 40.00 g/mol = 0.625 mol

From the balanced equation, we see that the mole ratio between sodium hydroxide and sodium chloride is 1:1. This means that 0.625 moles of sodium chloride will form. Since we know the molar mass of sodium chloride, we can convert moles to grams:

mass = n × M

Mass = 0.625 mol × 58.44 g/mol = 36.53 g

Therefore, 36.53 grams of sodium chloride will form when 25.0 g of hydrochloric acid and 25.0 g of sodium hydroxide are mixed.

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The car speed : 204.545 miles/h

Given

The speed of the car = 300 ft/s

Required

Speed in miles/hour

Solution

In converting units we must determine the conversion factor

Conversion factors for miles and hour :

1 mile = 5,280 feet

1 ft = 0,000189394 mile

1 hours = 3,600 s

So for 300 ft/s to miles/hour :

= 300 ft/s x 3600 s/hr x 0,000189394 mile/ft

= 204.545 miles/h

In the above intermediate chemical equation, oxygen will appear as follows: O₂(g) as a reactant (option B).

A chemical equation in chemistry is a symbolic representation of a chemical reaction where reactants are represented on the left, and products on the right.

According to this question, an intermediate chemical equation is presented as follows:

As observed in the above chemical equation, oxygen will react in its gaseous form i.e. as a reactant.

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Explanation:

Atoms are generally made up of three fundamental particles which are the protons, neutrons and electrons.

Protons are the positively charged particles within an atom.

Electrons carry negative charges.

Neutrons do not carry any charges.

When an atom is neutral, the number of protons and electrons within the atom is the same.

A charged atom will have a difference in the number of protons and electrons they contain.

Answer:

0 lone pairs

Explanation:

Answer:

\( \: \boxed{ \sf \: Plutonium \: to \: Uranium \: is \: Alpha \: Decay! }\)

Explanation:

Some nuclei attains more stabily by reducing their size, Alpha Decay is an example of such scenery.Nuclei having more than 210 nucleons, are so large in size hence the balancing force which prevents the repulsion between protons dominates, and due to excessive of protons lead to decay.

Consider any radioactive atom X with atomic mass A & atomic number z, when undergoes

alpha decay or radioactive emission, then the initial nucleus undergoes Excited state, and while returning to ground state it emits Gamma Radiation.

\(\boxed{\sf X_z^A \rightarrow Y_{z-2}^{A-4}+He_2^4+ \gamma }\)

Given,

Parent nuclei X = Pu(A= 240, z=94)

Daughter nuclei Y = U(A= 236, z=92)

\(\sf Pu_z^A \rightarrow U_{z-2}^{A-4}+He_2^4 \\ \sf Pu_{94}^{240} \rightarrow U_{94 - 2}^{240 - 4}+He_2^4 \\ \sf Pu_{94}^{240} \rightarrow U_{92}^{236}+He_2^4 \)

Hence the given fission of plutonium to uranium is Alpha Decay!

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Answer:

proton-27

electron-25

neutron-35

Explanation:

Temperature of the material needs to be measured. Then the equation Q=mcΔT needs to be used, where Q is the heat energy, m is the mass, c is the specific heat capacity and ΔT is the change intemperature.

Material is something that can be seen, felt, and/or interacted with. It is the physical substance of which a thing is composed. Materials can be made up of elements, compounds, and/or mixtures of these. Examples of materials include metals, plastics, rubber, wood, paper, cloth, glass, and water. Each material has unique properties such as strength, weight, color, texture, and durability. The choice of material used in a design or product is important as it affects the cost, performance, and overall success of the item.

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Answer:

A substance that cannot be broken down into simpler substances. An element is composed of atoms that have the same atomic number.

I hope it helps!

Explanation:

Answer:

pure substance consisting only of atoms that all have the same numbers of protons in their atomic nuclei.

Explanation:

paraphrase it boi

Explanation:

Weight = Mass * Gravitational force

55.54N = m * 9.83N/kg

Hence m = 55.54 / 9.83 = 5.67kg.

Answer:

\(\boxed{\boxed{\sf B. \ 5.67 \ kg}}\)

Explanation:

Weight is found by multiplying the mass by the gravitational acceleration.

\(W=m*g\)

The weight of the object is 55.54 Newtons and the gravitational acceleration is 9.83 m/s².

Therefore,

\(W= 55.54 \ kg*m/s^2 \\g= 9.83 \ m/s^2\)

Substitute the values into the formula.

\(55.54 \ kg*m/s^2=m* 9.83 \ m/s^2\)

Solve for the mass (m) by isolating the variable on one side of the equation. m is being multiplied by 9.83 m/s². The inverse of multiplication is division. Divide both sides of the equation by 9.83 m/s²

\(\frac{55.54 \ kg*m/s^2}{9.83 \ m/s^2} =\frac{m*9.83 \ m/s^2}{9.83 \ m/s^2}\)

\(\frac{55.54 \ kg*m/s^2}{9.83 \ m/s^2} =m\)

The m/s² will cancel each other out, hence the prior unit conversion.

\(\frac{55.54 \ kg}{9.83}=m\)

\(5.650050865 \ kg=m\)

This is about 5.67 kg, so B must be the correct answer.

Answer:

mass

Explanation:

mass is weight mass is weight mass is weight

Answer:

When a boy smells the aroma coming from the pot on the stove is actually detecting the chemicals coming from the air which comes from hot food that dissolves in the mucus present in the nasal cavity that carries tiny hairs made up of the nerve fibers that absorb these chemicals and excite or stimulate the olfactory receptors.

Various types of a distinct aroma or smell lead to a specific combination of the olfactory cells to make a specific smell. These combination patterns transported to the olfactory bulb along axons; a long extended neuron.

The sensory patterns or information encoding the smell of food present in the pot reaches the primary olfactory cortex in the brain, which is present on the anterior surface of the temporal lobe, and decodes accordingly.

Answer:You breath in what you smell and if it smells good or not you usely get up an see what is in the kitchen

Explanation:

Answer:

My name is Isaac Newton  and I am a scientist. I am known as one of the most important scientists in history. I was born in Woolsthorpe, England on January 4, 1643. My father, a farmer who was also named Isaac Newton, had died three months before my birth. My mother remarried when I was three years old and left me in the care of my grandparents.

Explanation:

A rigid container holds 2.60 mol of gas at a pressure of 1.00 atm and a temperature of 20.0 °C. The container's volume is 62.4 L.

To find the container's volume, we need to use the ideal gas law which states that PV = nRT where :

P is pressure

V is volume

n is the number of moles of gas

R is the gas constant

T is temperature.

We can rearrange the equation to solve for V as follows : V = (nRT)/P

We are given n = 2.60 mol, P = 1.00 atm, T = 20.0°C = 293 K (remember to convert Celsius to Kelvin by adding 273), and R = 0.0821 L·atm/(mol·K).

Plugging in these values and solving for V, we get :

V = (2.60 mol)(0.0821 L·atm/(mol·K))(293 K)/(1.00 atm) = 62.4 L

Therefore, the container's volume is 62.4 L.

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Answer:

snow storm and a blizzard

Explanation:

Answer:

As an object is heated up, its atoms and molecules move and collide faster. Geothermal energy is the thermal energy in the earth. Wind. ... total kinetic energy of the particles hat make up a substance. please mark brainliest

Explanation:

Answer: As an object is heated up, its atoms and molecules move and collide faster.

Explanation: Geothermal energy is the thermal energy in the earth. Wind. The total kinetic energy of the particles that make up a substance. Thus when the heat is added to the system, the temperature gets increases which in turn will increase the velocity of the molecule and these molecules will collide even faster .

3741.3 J is the total random kinetic energy of all the molecules in one mole of hydrogen at a temperature of 300 k.7482.6 m/s is the speed of a mole of hydrogen have to move so that the kinetic energy of the mass as a whole would be equal to the total random kinetic energy of its molecules

At 300 K, the total random kinetic energy of all the molecules in one mole of hydrogen is 3741.3 J. The speed at which a mole of hydrogen must move in order for its kinetic energy to equal the total random kinetic energy of its molecules is 7482.6 m/s. The average kinetic energy of gas molecules is determined by absolute temperature, according to kinetic theory. At a specific temperature, all gases share the same average kinetic energy". Kinetic energy = 3/2 * RT = 3/2 8.314 * 300 = 3741.3 J,KE = 1/2 m v2,v2 = 2 KE/m = 2* 3741.3/1.

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Answer:

The answer is explained below

Explanation:

a) The Breaking down/ electrolysis of water produces oxygen gas and hydrogen gas. The word equation is given by:

Water    ⇒      Hydrogen    +     Oxygen

b) The synthesis of water is the combination of two molecules of hydrogen and one molecule of oxygen to produce two molecule of water. The word equation is given by:

Hydrogen    +     Oxygen      ⇒      Dihydrogen monoxide

c) Sugar decomposes to produce carbon and water. The word equation is given by:

Sugar      ⇒       Carbon      +        Water

d) Photosynthesis is the process in which energy from sunlight is used by plant for growth

The reaction of photosynthesis in word form is given by:

Carbon dioxide      +         Water       ⇒      Glucose     +       Oxygen

If we had used 4 grams of NaOH instead of 2 grams, the heat gained by the solution would have been higher.

The term enthalpy has to do with the heat that could be emitted or evolved in a given reaction. We know that in a neutralization reaction, there is an evolution of heat and as such the reaction  vessel would feel warm at the end of the reaction.

Also, the enthalpy would depend on the amount of the limiting reactant. In this case, the limiting reactant would be the sodium hydroxide and as such the enthalpy would affected by a change in the amount of the sodium hydroxide.

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Approximately 8.79 grams of CO₂ are produced when 20 grams of CaCO₃ and 25 grams of HCl are mixed.

The balanced chemical equation for the reaction between calcium carbonate (CaCO₃) and hydrochloric acid (HCl) is:

CaCO₃ + 2HCl → CaCl₂ + CO₂ + H₂O

From the equation, we can see that 1 mole of CaCO₃ reacts with 2 moles of HCl to produce 1 mole of CO₂. The molar mass of CaCO₃ is 100.09 g/mol, and the molar mass of HCl is 36.46 g/mol.

To find the mass of CO₂ produced, we need to determine which reactant is limiting. This can be done by calculating the number of moles of each reactant and comparing them to the stoichiometric ratio in the balanced equation.

Number of moles of CaCO₃ = 20 g / 100.09 g/mol = 0.1998 mol

Number of moles of HCl = 25 g / 36.46 g/mol = 0.685 mol

According to the balanced equation, 1 mole of CaCO₃ reacts with 2 moles of HCl. Therefore, the limiting reactant is CaCO₃, since only 0.1998 moles of CaCO₃ are available to react with HCl.

From the balanced equation, we know that 1 mole of CaCO₃ produces 1 mole of CO₂. Therefore, the number of moles of CO₂ produced is also 0.1998 mol.

The molar mass of CO₂ is 44.01 g/mol. Therefore, the mass of CO₂ produced is:

Mass of CO= 0.1998 mol x 44.01 g/mol = 8.79 g

Therefore, approximately 8.79 grams of CO₂ are produced when 20 grams of CaCO₃ and 25 grams of HCl are mixed.

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Based on the structure of meta-hydroxyacetophenone and para-hydroxyacetophenone, we can make an assessment of their relative acidity. In both compounds, the hydroxyl group (OH) is attached to the phenyl ring. The position of the hydroxyl group relative to the acetophenone moiety is what distinguishes the two isomers.

In meta-hydroxyacetophenone, the hydroxyl group is attached to the meta position, which means it is three carbons away from the carbonyl group (C=O). In para-hydroxyacetophenone, the hydroxyl group is attached to the para position, meaning it is directly opposite the carbonyl group.The acidity of a phenolic compound is influenced by the stability of the phenoxide ion formed when the hydroxyl group loses a proton (H+). The stability of the phenoxide ion is affected by the electron density and resonance stabilization in the phenyl ring.In the case of para-hydroxyacetophenone, the para position allows for greater electron delocalization and resonance stabilization within the phenyl ring. This increased stability of the phenoxide ion makes para-hydroxyacetophenone more acidic than meta-hydroxyacetophenone.
Therefore, we would expect para-hydroxyacetophenone to be more acidic than meta-hydroxyacetophenone due to the enhanced resonance stabilization of the phenoxide ion in the para position.

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Answer:

Explanation:

a )

Zn = Zn²⁺ + 2e   ( oxidation reaction )

Fe³⁺ + 3e = Fe( s ) ( reduction reaction )

b )

[ Zn = Zn²⁺ + 2e ] x 3

[ Fe³⁺ + 3e = Fe( s ) ] x 2

-------------------------------------------------------------------

3 Zn + 2 Fe³⁺ + 6e = 3 Zn²⁺ + 2 Fe ( s ) + 6e

3 Zn + 2 Fe³⁺  = 3 Zn²⁺ + 2 Fe ( s )

Fe2S3 is The Empirical Formula Of A Compound Containing 53.70% Iron And 46.30% Sulfur.

Fe = 0.961 mol and S = 1.44 mol, Now divide them to get lowest empirical formula. When the subscripts in a chemical formula represent the simplest ratio of the kinds of atoms in the compound, the formula is called an empirical formula.

Most ionic compounds are described with empirical formulas. A molecular formula describes the actual numbers of atoms of each element in a molecule. A compound that contains ions and is held together by ionic bonds is called an ionic compound. The periodic table can help us recognize many of the compounds that are ionic:

When a metal is combined with one or more nonmetals, the compound is usually ionic. This guideline works well for predicting ionic compound formation for most of the compounds typically encountered in an introductory chemistry course. However, it is not always true (for example, aluminum chloride, AlCl3, is not ionic).

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i think the answer is b) i.e. Switch....

according to me ammeter and battery are already there...

Answer:

According to the Dalton's theory, the description of water molecule is that;

-Water molecules are made of two different kinds of atoms (hydrogen and oxygen atoms).

-All water molecules have twice as many hydrogen atoms as oxygen atoms.

-All water molecules have one oxygen atom for every two hydrogen atoms.

Explanation:

got a 100% on edge

The described scenario is an example of parasitism.

Parasitism is a type of symbiotic relationship in which one species benefits while the other is harmed. In this case, the wasps benefit by using the caterpillar as a host for their young, which ultimately leads to the death of the caterpillar.

The caterpillar, on the other hand, is harmed as its body is used as a food source for the developing wasp larvae, ultimately leading to its death. This type of interaction is common in nature, with many species relying on others as a source of food or shelter, even if it comes at the cost of the host's well-being.

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A debate among scientists on how new species form is based on speciation.

Divergence explains how organisms on Earth are related because it shows how species are similar or different.

Genes play the role in diversity of carrying information that results in changes from one generation to the next.

Natural selection is part of evolution because it explains why attributes are either in existence or have gone extinct.

One of the main debates among scientists on how new species form centers around the concept of speciation. There are two main hypotheses for speciation: allopatric speciation and sympatric speciation.

Divergence is the process by which different populations or species of organisms evolve from a common ancestor over time. This process is responsible for the diversity of life on Earth. By studying the similarities and differences between different organisms, scientists can infer evolutionary relationships.

Genes are the basic units of inheritance that carry information from one generation to the next. They play a crucial role in creating diversity among organisms. The genetic diversity of a population is the result of mutations, gene flow, and genetic drift.

The theory of natural selection is one of the most important and widely accepted explanations for the diversity of life on Earth. It is the process by which certain traits become more or less common in a population over time, depending on their impact on the survival and reproduction of the organisms that possess them.

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Camouflage is not a general adaptation which is therefore denoted as option A.

This is referred to as any heritable trait that helps an organism, such as a plant or animal, survive and reproduce in its environment.

It is also called cryptic coloration, is a defense or tactic that organisms use to disguise their appearance, usually to blend in with their surroundings. Organisms use camouflage to mask their location, identity, and movement and it used by most prey to avoid predators, and for predators to sneak up on prey.

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When NaOH solution is accidentally spilled on your skin while trying to transfer it into a pH paper, one should rinse the exposed skin with water.

Chemical reagents can be found in the laboratory and are harmful to the human skin.

However, when transferring an alkaline solution of NaOH to the pH paper and one accidentally splashes it onto the skin, water should be poured to the affected part immediately.

The water washes away the chemical before it starts to have negative effect on the skin.

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Answer:

A) Tell your teacher right away

E) Rinse the exposed skin with water

Explanation:

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