of the four basic elements necessary for life as we know it, three are made

Answer: See Explanation.

Explanation:

There could be several reasons why the student's measurement of the boiling temperature of the water was different from the expected value of 100.00 °C at 1 atm. Some possible reasons include:

It is important to note that measuring temperature is a difficult task, and it is not uncommon to get a result that is slightly different from the expected value. The student should repeat the experiment several times and take an average of the results to get a more accurate measurement. It is also important to ensure that the instrument used is calibrated and properly maintained.

Hot air balloons flies by means of it being lighter than air .First, we must comprehend what is occurring at the molecular level in order to fully comprehend this. Any substance alters its state of matter when heated because the molecules become stimulated.

Hot air balloons lack steering wheels, thus their pilots must instead use the wind's direction and speed at various heights to guide the balloon.

Hot air balloons fly because they are lighter than air. By raising the temperature of the balloon's air and consequently its volume and decreasing its density, the flame can be used to steer the pilot in different directions and raise the balloon to the proper altitude when there are winds present.

Charles' law states that a gas's volume and Kelvin temperature are directly inversely related.

As a result, as the temperature rises, the volume of the mass gas grows and the density falls.

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The conclusion that can be drawn about the average rate of the reaction between points 1 and 2 and between points 2 and 3 depends on the specific information provided regarding the reaction and the nature of the points. Without additional details, it is not possible to determine the

The average rate of a reaction refers to the change in the concentration of a reactant or product over a specific time interval. To draw a conclusion about the average rate of the reaction between points 1 and 2 and between points 2 and 3, we need to compare the concentrations or other relevant data at these points. If the concentration of a reactant or product is known at each point, we can calculate the average rate of the reaction by dividing the change in concentration by the time interval between the points. By comparing the average rates between points 1 and 2 and between points 2 and 3, we can determine if the reaction is occurring at a faster or slower rate between these intervals.

However, since the specific information about the reaction and the nature of the points is not provided, it is not possible to draw a definitive conclusion about the average rate of the reaction. Additional data regarding concentrations, time intervals, or any other relevant factors would be necessary to make a meaningful conclusion about the average reaction rates between the given points.

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Answer: Hello i am confused are you asking a question?

Explanation:

Explanation:

option no 4 is correct answer

I hope is helpful

Answer:

search the Lewis dot structure you will know the answer.

a)32.670 + 1.2240 = 33.8904

33.8904-14.0 = 19.8904

b)12.080 × 4.050 × 0.231

=54.36 × 0.231

=12.55716

c)(3.051 × 103) ×(2.00 × 10.2)=

314.253 × 20.4 = 6410.7612

Using Boyle's law, As pressure is decreased, the volume will increase.

Boyle's Law describes how pressure and volume relate when the temperature is constant.

P1V1 = P2V2

When temperature is kept constant in this equation, pressure and volume have an inverse relationship.

When the volume is reduced, molecules have less room to move and collide more frequently, which raises the pressure. If the volume is increased, the molecules have more room to move, collisions occur less frequently, and the pressure is reduced.

The combined gas law, however, governs the connection between the three quantities when temperature is included.

As the gas volume decreases, the molecules hit the walls more frequently, raising the pressure; conversely, as the volume grows, the molecules must travel farther to contact the walls, reducing the frequency with which they do so and raising the pressure.

According to Boyle's law, a gas's pressure tends to decrease as its volume rises.

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Note: in the International System of Units, The kilogram or kilogramme (symbol: kg) is the base unit of mass.

2nd Note:

1 gram = 0.001 Kilograms

72 kilograms converted to grams is 72,000 grams.

333 grams is 0.333 kilograms.

0.23976 is the pizza percentage.

Rounded: 0.24

Therefore, your answer is 0.24

Answer:

is a small, circular double-stranded DNA molecule that replicates autonomously.

Explanation:

hope this helps

Answer:

Ionic

Explanation:

Answer:

Ionic Bond

Explanation:

CuS has an ionic bond between it as it it formed by the combination of two ions Cu⁺² and S⁻².

The option that does not represent a characteristic of a pure substance is:

C) It is made up of different types of particles.

A pure substance is a material that consists of only one type of particle, either atoms of an element or molecules of a compound. It does not contain different types of particles. This is what distinguishes a pure substance from a mixture, which is composed of two or more different substances mixed together.

Option A states that a pure substance has a uniform texture throughout, which means it is homogeneous. This is true because pure substances have a consistent composition and properties throughout.

Option B states that a pure substance has a fixed boiling point or melting point. This is also true because pure substances have well-defined temperature ranges at which they transition between solid, liquid, and gas phases.

Option D states that a pure substance can be an element or a compound. This is true as well because pure substances can exist as either single elements or compounds consisting of two or more elements chemically bonded together.

In summary, the correct option is C, as a pure substance does not consist of different types of particles.

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Answer:

First, I will give you a brief summary of what heterotrophs and autotrophs are:

Autotrophs are known as producers because they are able to make their own food from raw materials and energy. Examples include plants, algae, and some types of bacteria. Heterotrophs are known as consumers because they consume producers or other consumers. Dogs, birds, fish, and humans are all examples of heterotrophs.

Now, to get to the question.

The first option, which is the image of trees and grass will go into the autotroph box. This is because plants make food for themselves.

The second option, which is the image of the tiger, will go in the heterotroph box. This is because tigers eat foods like deer and wild boar, and those are heterotrophs.

The third option, which is the image of the deer, belongs in the heterotroph box. deers eat plants to survive, which are autotrophs, meaning that a deer is a heterotroph.

The fourth option, which is the image of some algae, belongs in the autotroph box. As I explained before, all algae are autotrophs.

The fifth option, which is the image of a human, belongs in the heterotroph box. Humans can't produce any food by themselves, so that makes them a heterotroph.

Finally, the last option, which is the image of some carrots, belongs in the autotroph box. Carrots provide their own food for themselves.

I hope this could help you! A brainilist is highly appreciated and helpful!

Molecules of glucose (blood sugar) contain 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms.

Hope this helped :)

Answer:

Osmosis

Explanation:

Water is very essential for the body. When we drink water, our blood cells absorbs water from the body. This happen by a process called as osmosis process. Osmosis is type of diffusion process.

Water along with oxygen and carbon dioxide are some of the simple molecules that moves into the blood cell. Osmosis is the process by which water molecules passes into the cell bodies through its semi permeable membrane.    

At 55 °C, the equilibrium constant for this reaction is 6.68. A pharmaceutical chemist prepares 15.0 L of an initial 0.275 M acetic acid and 3.85 M ethanol solution.

Create an equation that can be solved for x by plugging the equilibrium concentrations (expressed in terms of x) into the formula for the equilibrium constant. (d) The equation from subpart (c) is cubic (it bears the formula ax3 + bx2 + cx + d = 0). In general, it is impossible to solve cubic equations in closed form. Indicate the direction (toward product or toward reactants) in which the mixture must change if it is not at equilibrium. The concentrations of SO 2 Cl 2 and SO 2 are 0.108 M and 0.052 M, respectively, in a mixture of the three gases that has reached equilibrium.

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In serial order  balanced chemical equations are N₂ + 3 H₂\(\rightarrow\) 2 NH₃,2 KClO₃\(\rightarrow\) 2 KCl +3 O₂,2 NaCl +F₂\(\rightarrow\) 2 NaF +Cl₂,2 H₂ +O₂\(\rightarrow\)2 H₂O and they are synthesis,decomposition,single displacement ,synthesis reactions respectively.

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

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Answer:

a. 21.7824 g

b. 0.2362 g

c. 31.5273 g

Please see the answers in the picture attached below.

Explanation:

Please see the step-by-step solution in the picture attached below.

Hope this answer can help you. Have a nice day!

The mass of solute required in each case can be obtained form the stoichiometry of the reaction.

We know that the mass of each solution can be obtained from the relation;

mass/molar mass = concentration × volume

mass = concentration × volume × molar mass

a)

mass =  0.125 M  ×  1.00 L ×  174 g/mol = 21.75 g

b) mass = 0.015 M  × 375 /1000 × 42 g/mol = 0.24 g

c) mass = 0.350 M × 500/1000 × 180 g/mol =31.5 g

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Answer:

c

Explanation:

Answer:

Answer A

Neutrons and protons

The chemical reaction taking place to let the meat be tenderized when it is soaked in lemon juice or vinegar is called denaturation.

Denaturation is a process where the protein structure of the meat changes due to the acidity of the lemon juice or vinegar. The acidity breaks down the proteins, making the meat more tender. This is why meat is often soaked in an acidic liquid such as lemon juice or vinegar to tenderize it.

Meat is left tenderized by soaking in a liquid like lemon juice or vinegar for several hours because the acid in the vinegar or lemon juice breaks down the proteins in the meat. The acidity breaks down the proteins, making the meat more tender and easier to chew. Vinegar and lemon juice work so well to tenderize meat because they contain acid. Denaturation is the process by which proteins are altered due to changes in pH, temperature, or other conditions. When meat is soaked in vinegar or lemon juice, the acid denatures the proteins in the meat, making it more tender.

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Answer:

Showers

Drinking Water

Waching your hands

Explanation:

Answer:

Drinking Water

Showering

Washing dishes

Washing your hands

Watering the plants

Cooking (to boil pasta and/or noodles and things such as that)

Answer:

37.94  × 10²³ molecules of ammonia.

Explanation:

Given data:

Mass of ammonia = 107.1 g

Number of molecules = ?

Solution:

First of all we will calculate the number of moles of ammonia.

Number of moles = mass/molar molar mass

Number of moles = 107.1 g/  17 g/mol

Number of moles = 6.3 mol

Now we will use the Avogadro number to calculate the number of molecules.

 It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ molecules

6.3 mol  × 6.022 × 10²³ molecules / 1mol

37.94  × 10²³ molecules of ammonia.

How close the magnets are together and which direction the poles are pointed to

decay rate of approximately 1.69x10^17 Bq (becquerels),

The decay rate of a radioactive sample is determined by the number  of radioactive atoms present and the decay constant, which represents the probability of decay per unit of time.

To calculate the decay rate, we multiply the number of atoms in the sample by the decay constant. In this case, the sample has 8.31x10^17 atoms and a decay constant of 0.203/s. Multiplying these values gives a decay rate of approximately 1.69x10^17 Bq (becquerels), which represents the number of decays per second in the sample.

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