Which of these is classified as a dwarf planet?
1.Earth
2.Pluto
3.Mercury
4.Neptune

Answer:

3 m/s^2

Explanation:

m = 3 kg

F = 9 N

Use Newton's Second Law: F = ma

9 = 3a

a = 3 m/s^2

Answer:

See attached picture.

Explanation:

Hello,

In this case, we should define each type of structural formula as shown below:

- Chain isomers: molecules with the same molecular formula, but different arrangements.

- Positional isomers are constitutional isomers that have the same carbon skeleton and the same functional groups but differ from each other in the location of the functional groups.

- Functional isomers are structural isomers that have the same molecular formula (that is, the same number of atoms of the same elements), but the atoms are connected in different ways so that the groupings are dissimilar.

Regards.

Answer:

1.E25 it is the answer the answer to mass of 1×10^25 molecules of water​

Explanation:

this is just EXPLINATION find your answer using this

first divide the number of molecules by Avogadro's number 6.022*10^25

you will

l get no. of Moles of water

multiply the no. of Moles with mass of 1 Mole of water 18g per mole

if get answer you comment

you should try on your own you will understand better

According to Newton's second law, force equals mass multiplied by acceleration. As a result, in a car accident, the force exerted by the vehicle and its occupants decreases as the time required for the vehicle to stop increases.

We clearly observed in the Exploration that when two cars collide, each feels a force from the other.

According to Newton's third law, when one object exerts a force on another, the second object feels an equal and opposite force exerted by the first object. This is very clear in the two-object collision.

The force with which your body is struck in a collision is referred to as crash force. Crash force is equal to your body weight multiplied by the vehicle's speed.

Newton's second law states that force equals mass multiplied by acceleration. As a result, the force exerted by the vehicle and its occupants in a car accident decreases as the time required for the vehicle to stop increases.

Thus, this way it hits the car.

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My classmate's statement in incorrect because plants are also composed of cells.

All living things are composed of cells. A cell is the smallest unit of living organisms. Cells obtain energy via the process of cellular respiration. During cellular respiration, glucose is broken down to yield carbon dioxide and water.

In photosynthesis, carbon dioxide and water are combined to form glucose. The two processes are opposites of each other. Plants produce their own food via photosynthesis. Since plants are composed of cells, plant cells also undergo cellular respiration therefore my classmate's statement in incorrect.

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The correct answer is A.

The ratio of the volume of 2g of hydrogen to the volume of 16g of methane, both volumes at room temperature and pressure is 1:1.

To determine the ratio of the volume of 2g of hydrogen to the volume of 16g of methane at room temperature and pressure, we need to use the concept of molar volume.

First, we need to calculate the number of moles for each substance using their molar masses:

Molar mass of hydrogen (H₂) = 2 g/mol

Molar mass of methane (CH₄) = 16 g/mol

Number of moles of hydrogen = Mass of hydrogen / Molar mass of hydrogen

Number of moles of hydrogen = 2 g / 2 g/mol

Number of moles of hydrogen = 1 mol

Number of moles of methane = Mass of methane / Molar mass of methane

Number of moles of methane = 16 g / 16 g/mol

Number of moles of methane = 1 mol

According to Avogadro's Law, at the same temperature and pressure, equal volumes of gases contain the same number of molecules (or moles).

Therefore, the ratio of their volumes is equal to the ratio of their moles.

Since both hydrogen and methane have 1 mole each, the ratio of their volumes is 1 to 1.

Therefore, the correct answer is A 1 to 1.

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Answer:

B and D

Explanation:

Because its adaptions they need to survive in the cold.

Answer: 212

Explanation:

The arrow in a chemical equation represents the direction of the reaction. It indicates the conversion of reactants into products. The arrow points from the reactant side to the product side, symbolizing the flow of the reaction.

The purpose of the arrow is to visually represent the chemical transformation occurring in the reaction. It shows the relationship between the reactants and products and the direction in which the reaction proceeds. The arrow implies that the reactant molecules are being rearranged and transformed into new substances with different properties.

Chemical equations are used to describe the stoichiometry and balance of reactions. The arrow helps convey this information by illustrating the overall process taking place. It serves as a crucial element in understanding the reaction's composition, reaction conditions, and the substances involved.

Furthermore, the arrow also implies that the reaction can occur in both directions. In reversible reactions, the arrow can be represented as a double-headed arrow, indicating that the reaction can proceed in either direction depending on the conditions.

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Answer:

Heat radiation travels in straight lines at the speed of light. It will only travel through transparent media, like air, glass and water.

Answer:

umm i am not sure i really understand the question but uranium has the highest number of Protons. It has a total of 92 protons. And if that doesn't work than the Atomic number should tell the number of protons are in the element

Explanation:

Answer:

molecular weight of C12H22O11 or grams This compound is also known as Lactose or Sucrose or Maltose. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles C12H22O11, or 342.29648 grams.

Explanation:

Answers: The answer is A

Explanation:

correct me if I'm wrong

Answer:

Explanation:

H+ = 1 X 10^-7.41 = 3.89 X 10^ -8

POH = 14-7.41 = 6.59

OH- = 1 x 10 ^-6.59 = 2.57 X 10^ -7

The [H+] and [OH−] concentrations of the solution are approximately 2.38 × 10^(-7) M, and the pOH is 6.59.

The pH of a solution is a measure of the concentration of hydrogen ions ([H+]) in the solution. The pH scale ranges from 0 to 14, with a pH of 7 considered neutral. A pH of 7.41 indicates that the solution is slightly basic. To calculate the [H+], [OH−], and pOH of the solution, we can use the relationship:

pH + pOH = 14

Given that the pH is 7.41, we can subtract it from 14 to find the pOH:

pOH = 14 - 7.41 = 6.59

Since pH + pOH = 14, we can also determine the [OH−] by taking the antilogarithm of the pOH value:

[OH−] = 10^(-pOH)

[OH−] = 10^(-6.59)

[OH−] ≈ 2.38 × 10^(-7) M

Since the solution is neutral, the concentration of [H+] will be equal to the concentration of [OH−]:

[H+] = [OH−] ≈ 2.38 × 10^(-7) M

Therefore, the [H+] and [OH−] concentrations of the solution are approximately 2.38 × 10^(-7) M, and the pOH is 6.59.

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In the simile "Ben swallowed the sandwiches like a snake," the two things being compared are Ben (the subject of the sentence) and a snake.

The important qualities of a snake in this metaphor are its swallowing behavior and the speed at which it devours its prey.

A metaphor is a figure of speech that makes a comparison between two unrelated things, objects, or concepts, highlighting a similarity between them. Unlike similes, which use words such as "like" or "as" to make a direct comparison, metaphors state that one thing is another.

Snakes are known for their ability to consume their prey whole and quickly, using their flexible jaws and swallowing mechanism.

Therefore, the important quality of the snake in the metaphor is swallowing.

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Complete question:

Answer the questions about this simile: "Ben swallowed the sandwiches like a snake."

What two things are being compared?

What are the important qualities of a snake in this metaphor?

Answer:

Although they receive a bad rap from the media and pharmaceuticals, the majority of prokaryotes are either harmless or actually help eukaryotes, such as animals and plants, to survive and only a small number of species are responsible for serious illnesses.

Explanation:

Answer:

Compound A and compound B are constitutional isomers with molecular formula C3H7Cl.

When compound A is treated with sodium methoxide, a substitution reaction predominates. When compound B is treated with sodium methoxide, an elimination reaction predominates.

Explanation:

Constitutional isomers are the one which differs in the structural formula.

When compound A is treated with sodium methoxide, a substitution reaction predominates.

That means sodium methoxide is a strong base and a strong nucleophile.

But when it reacts with primary alkyl halides it forms a substitution product and when it reacts with secondary alkyl halide it forms mostly elimination product.

The reaction and the structures of A and B are shown below:

The two ways that a cell's part helps it make materials that it needs include mitochondria changing the energy stored in organic matter into usable forms of energy and DNA providing the instructions for making proteins. Options A and D.

Cells are able to synthesize some of what they need. The materials that cannot be synthesized by cells are obtained from the environments of cells.

One thing that every cell needs is energy. This energy is usually in the form of ATP. An organelle known as mitochondrion is responsible for the breaking of organic materials to unlock their energy and convert it to ATP that can be used by the cell.

Another material that every cell needs are proteins. Proteins are important for normal physiological processes of the cell. The DNA stores the information needed for making these proteins from amino acids.

Thus, energy synthesis by mitochondrion and protein synthesis by DNA represent two ways by which the parts of cells help them make the materials they need.

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Answer:

C and D

Explanation:

It is right because i did a quiz and i got c and d right hope this helps:)

Answer:

it is C,D

Explanation:

test proved

Answer:

v2=5.11L

Explanation:

given

v1=2.58L

N1=0.118mol

N2=0.234

v2=x

according to charles law V1/N1=V2/N2

2.58/0.118=V2/0.234

21.86=V2/0.234

21.86×0.234= v2

5.116L=v2

5.116L is the

answer or u can simplify it and make 5.1 L

The final pressure of the gas of initial pressure 275 torr is 550 torr.

Pressure is the force acting normally per unit area to the surface of an object

To caluclate the final pressure of the balloon, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the final pressure is 550 torr.

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Answer: Loamy, sandy and clayey

Answer:

Sand, silt and clay

Explanation:

Soil can be classified into three primary types based on its texture – sand, silt and clay. However, the percentage of these can vary, resulting in more compound types of soil such as loamy sand, sandy clay, silty clay, etc.

Source: https://byjus.com/biology/types-of-soil/#:~:text=Soil%20can%20be%20classified%20into,clay%2C%20silty%20clay%2C%20etc.

Hope this helps! :)

Happy Late Valentine's Day!

Brainliest, Please!

The new volume of the gas is 56.6 liters when the temperature is raised to 325 K and the pressure is lowered to 1.2 atm.

PV = nRT

Where R is the ideal gas constant. Since the number of moles is constant in this problem, we can simplify the ideal gas law to:

P1V1/T1 = P2V2/T2

Where the subscripts 1 and 2 refer to the initial and final states of the gas, respectively.

We can now plug in the given values for the initial state of the gas:

P1 = 2.3 atm

V1 = 25 L

T1 = 299 K

And the given values for the final state of the gas:

P2 = 1.2 atm

T2 = 325 K

We can then solve for V2:

P1V1/T1 = P2V2/T2

(2.3 atm)(25 L)/(299 K) = (1.2 atm)V2/(325 K)

V2 = (2.3 atm)(25 L)(325 K)/(1.2 atm)(299 K)

V2 = 56.6 L (rounded to three significant figures)

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16400 Joules is the kinetic energy of a 328kg object with a velocity of 10m/s.

Kinetic energy is simply energy possessed by a body in motion.

Kinetic energy is expressed as;

Kinetic energy = 1/2 × m × v²

Where v is velocity and m is mass of the object,

Given the data in the question;

To determine the kinetic energy of the object, plug the given values into the formula above.

Kinetic energy = 1/2 × m × v²

Kinetic energy = 1/2 × 328kg × (10m/s)²

Kinetic energy = 1/2 × 328kg × 100m²/s²

Kinetic energy = 328kg × 50m²/s²

Kinetic energy = 16400kgm²/s²

Kinetic energy = 16400J

Therefore, the kinetic energy 16400 Joules.

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Answer:

Ca(C2H3O2)2 has 30.41% carbon by volume

Explanation:

Answer:

If 33.6 g of NO and 26.9 g of O₂ react together, 51.52 grams of NO₂ can be formed.

Explanation:

You know: 2 NO (g) + O₂ (g) → 2 NO₂ (g)

By stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of reagent and product participate in the reaction:

Being:

the molar mass of the compounds participating in the reaction is:

Then, by stoichiometry of the reaction, the following amounts of reactant and product participate in the reaction:

The limiting reagent is one that is consumed first in its entirety, determining the amount of product in the reaction. When the limiting reagent is finished, the chemical reaction will stop.

You can apply the following rule of three to determine the limiting reagent: if by stoichiometry 60 g of NO react with 32 g of O₂, 33.6 g of NO with how much mass of O₂ will it react?

\(mass of O_{2}=\frac{33.6 grams of NO*32 grams of O_{2} }{60 grams of NO}\)

mass of O₂= 17.92 grams

But 17.92 grams of O₂ are not available, there are 26.9 grams available. Since it has more mass than it needs to react with 33.6 grams of NO, NO will be the limiting reagent.

Then you apply the following rule of three: if by reaction stoichiometry 60 grams of NO form 92 grams of NO₂, 33.6 grams of NO how much mass of NO₂ does it form?

\(mass of NO_{2}=\frac{33.6 grams of NO*92 grams of NO_{2} }{60 grams of NO}\)

mass of NO₂= 51.52 grams

If 33.6 g of NO and 26.9 g of O₂ react together, 51.52 grams of NO₂ can be formed.