What experiment did J. J. Thomson do?

A. He sent a cathode ray between electrically charged metal plates.

B. He suspended charged oil drops in a chamber.

C. He hit metal plates with light.

D. He shot alpha particles through gold foil

Answer:

C: Most particles in the plasma are heavy, slow, and very low density.

Explanation:

i'm smart like dat

Answer:

C is correct

Explanation:

It is not possible to conclude that light carries energy by comparing the temperature of the two thermometers.

To learn more about temperature refer:

brainly.com/question/2339046

#SPJ1

Answer:

Temperature and Pressure

Explanation:

Temperature and pressure cause change in volume.

So any change in volume will alter the ratio of density as given by equation of density.

Density = mass/ volume

Change in volume will alter the ratio.

Kindly mark it branliest if the answer is little bit satisfying.

Answer:

Q = - 18830.9 J

Explanation:

Given data:

Mass of water = 85 g

Initial temperature = 55°C

Final temperature = 2°C  

Amount of heat lost = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Specific heat capacity of water 4.18 j/g.°C

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 2°C - 55°C

ΔT = -53°C

Q = 85 g × 4.18 j/g.°C × -53°C

Q = - 18830.9 J

Negative sign shows that heat is released.

We need 3.547 mL of 2.155 M KOH solution to titrate 25.00 mL of 0.3057 M HC3H5O2 solution. To determine the number of milliliters of 2.155 M KOH(aq) required to titrate 25.00 mL of 0.3057 M HC3H5O2(aq) (propionic acid), we need to use the balanced chemical equation between KOH and HC3H5O2.

The equation is:

KOH(aq) + HC3H5O2(aq) → KC3H5O2(aq) + H2O(l)

From the equation, we can see that 1 mole of KOH reacts with 1 mole of HC3H5O2. Therefore, the number of moles of HC3H5O2 in 25.00 mL of 0.3057 M solution is:

n(HC3H5O2) = M(HC3H5O2) × V(HC3H5O2) = 0.3057 mol/L × 0.02500 L = 0.0076435 mol

Since the stoichiometric ratio between KOH and HC3H5O2 is 1:1, we need 0.0076435 moles of KOH to react with the given amount of HC3H5O2. The number of milliliters of 2.155 M KOH solution required is:

V(KOH) = n(KOH) ÷ M(KOH) = 0.0076435 mol ÷ 2.155 mol/L = 0.003547 L or 3.547 mL (rounded to three significant figures)

Therefore, we need 3.547 mL of 2.155 M KOH solution to titrate 25.00 mL of 0.3057 M HC3H5O2 solution.

To know about solution:

https://brainly.com/question/1616939

#SPJ11

the first option; waning gibbous + decreases

The significance of the Ronald Cotton case, that a person can be convicted without individual evidence. Therefore, option D is correct.

Evidence is something or information used to increase or decrease the likelihood that a fact exists. Evidence can be testimony, written materials, visual or audio recordings, DNA samples, or other physical artifacts.

In essence, evidence is utilized to support a claim made by people or organizations who think something is real or a fact. Evidence may also be used to debunk or dispute a fact or claim that others don't agree with or believe to be incorrect.

Thus, option D is correct.

To learn more about evidence, follow the link;

https://brainly.com/question/14370298

#SPJ1

The answer to this question is change in temperature will be 6.1 and specific specific heat capacity of metal will be 1698.36.

According to the formula of Calorimetry

Q = msΔT

where, Q = Quantity of heat absorbed (in joules)

M = Mass of water sample given (in kilogram)

S = specific heat capacity of metal

ΔT = Change in temperature

We have given,

Mass as 25 gram which is equal to 0.025 Kg.

Change in temperature as 6.1

Quantity of heat absorbed as 259 J

Applying to the formula of Calorimetry

Q = msΔT

259 = 0.025 × s × 6.1

s = 1698.36

So, specific heat capacity of metal came out to be 1698.36 and the change in temperature will be 6.1

Learn more about Calorimetry here:

https://brainly.com/question/1407669

#SPJ10

Answer: specific heat is 1.7

Explanation:

after you answer this question itll then tell you to find the specific heat

Answer:

Ribose

Explanation:

This is the pentose sugar found in RNA commonly.

Answer:

It is Xylem!

Explanation:

 I just now took the test in Eduphoria. Just trust me, and you will get this right. I promise!

It is through circulatory system through which tissues get required oxygen, nutrients and also helps to remove waste products. The plants move water and nutrients through Xylem.

The vascular tissue which carries water and minerals from the soil to the leaves and stems is defined as the xylem. It is composed of some specialized cells called tracheary components which carry water.

There are two types of xylem, they are primary xylem and secondary xylem. The primary xylem is developed during the primary growth of the plant whereas the secondary xylem is formed during the secondary growth of the plant.

The most important function of xylem is to transport water and minerals from the roots of the plant to other parts of the plant. This transportation occurs by passive transport which does not require any external energy.

The materials which flow through the xylem cell is called the xylem sap.

Thus xylem helps plants to move nutrients and water.

To know more about xylem, visit;

https://brainly.com/question/15918718

#SPJ6

Explanation:

To find the freezing point of the solution using the freezing point depression (ATf) and the freezing point of water, we can use the equation:

FPsolution = FPwater - ATf

where FPwater is the freezing point of pure water (0.00 °C). We know that ATf for this solution is 5.58 °C, as found in the previous step. Therefore:

FPsolution = 0.00 °C - 5.58 °C

FPsolution = -5.58 °C

However, a freezing point below zero degrees Celsius is not physically possible, since water freezes at 0.00 °C. Therefore, the solution would not actually freeze at this temperature, and we need to round the answer to zero °C:

FPsolution ≈ 0.00 °C

Therefore, the freezing point of the solution is around 0.00 °C, or the solution will not freeze at this temperature.

The structure that best fits the given data is 1,4-dibromobenzene.

The presence of two methyl singlets in the proton NMR spectrum indicates the presence of two methyl groups in the compound. This suggests the presence of a substituent attached to the benzene ring.

The proton-decoupled 13C NMR spectrum displays six peaks, indicating the presence of six distinct carbon environments. In 1,4-dibromobenzene, there are two carbon atoms attached to the methyl groups, which gives two peaks. The benzene ring itself has four unique carbon environments, each with a different chemical shift, resulting in four additional peaks.

The structure of 1,4-dibromobenzene matches the data because it contains two methyl groups and displays a total of six peaks in the proton-decoupled 13C NMR spectrum, consistent with the given information.

To learn more about NMR spectrum, here

https://brainly.com/question/30465398

#SPJ4

The atomic ratio of carbon to oxygen in carbon monoxide (CO) is 1:1, and the atomic ratio of carbon to oxygen in carbon dioxide (CO₂) is 2:1.

Firstly, we can analyze the decomposition of carbon monoxide (CO) and carbon dioxide (CO₂) to determine the atomic ratios involved.

Let's denote the atomic ratio of carbon to oxygen in carbon monoxide as x, and the atomic ratio of carbon to oxygen in carbon dioxide as y.

According to the given data;

Decomposition of carbon monoxide (CO);

Oxygen produced = 3.36 g

Carbon produced = 2.52 g

We know that the atomic mass of carbon is 12 g/mol, and the atomic mass of oxygen is 16 g/mol. Using these values, we can calculate the number of moles for each element;

Number of moles of oxygen = mass / atomic mass = 3.36 g / 16 g/mol = 0.21 mol

Number of moles of carbon = mass / atomic mass = 2.52 g / 12 g/mol = 0.21 mol

Since the atomic ratio of carbon to oxygen in carbon monoxide is x, we can write the following equation;

0.21 mol C / (0.21 mol O) = x

Simplifying the equation, we have;

x = 1

Therefore, the atomic ratio of carbon to oxygen in carbon monoxide is 1:1.

Decomposition of carbon dioxide (CO₂);

Oxygen produced = 9.92 g

Carbon produced = 3.72 g

Following the same calculations as before;

Number of moles of oxygen = mass / atomic mass = 9.92 g / 16 g/mol = 0.62 mol

Number of moles of carbon = mass / atomic mass = 3.72 g / 12 g/mol = 0.31 mol

Since the atomic ratio of carbon to oxygen in carbon dioxide is y, we can write the following equation;

0.31 mol C / (0.62 mol O) = y

Simplifying the equation, we have;

y = 0.5

Therefore, the atomic ratio of carbon to oxygen in carbon dioxide is 1:0.5, which can be simplified to 2:1.

To know more about decomposition here

https://brainly.com/question/20418092

#SPJ4

--The given question is incomplete, the complete question is

"Missed this? watch kcv: atomic theory; read section 2.3. you can click on the review link to access the section in your text. carbon and oxygen form both carbon monoxide and carbon dioxide. when samples of these are decomposed, the carbon monoxide produces 3.36 g of oxygen and 2.52 g of carbon, while the carbon dioxide produces 9.92 g of oxygen and 3.72 g of carbon. Calculate the atomic ratio of carbon to oxygen in carbon monoxide, and carbon dioxide."--

Answer:

ones in magnets r close together while others can be spread apart

Answer:Atomic radius gets bigger

Explanation:

Atomic radius bigger because not only do the atoms have more and more protons and neutrons, and thus more mass in general, there is also stronger shielding affect. Shielding affect is when electrons closer to the nucleus block the positive charge from reaching electrons farther from the nucleus, and thus those far electrons are not drawn towards the nucleus as strongly, and spread out more, increasing atomic radius.

a. The empirical formula of a 5.000 g sample of an unknown insecticide made up of C, O, and Cl is analyzed by combustion analysis. 8.692 g of CO₂ and 1.142 g of H₂O are recovered. A second 5.000 g sample in another analysis gave 2.571 g of HCl is C₅H₆ClO₃.

b. The molecular formula of the unknown’s molar mass around 354 g/mol is C₂₅H₃₀Cl₆O₁₅.

The empirical formula of a compound can be determined by combustion analysis. Combustion analysis is an experimental technique that determines the elemental composition of a compound. This technique involves burning a known quantity of a substance in excess oxygen and analyzing the products formed. The products of combustion are typically carbon dioxide and water vapor.

The first step in determining the empirical formula of the compound is to determine the masses of carbon, hydrogen, and oxygen present in the sample. Here's how you can do this:

1. Carbon: The mass of carbon dioxide produced in the combustion of the sample is 8.692 g. Carbon dioxide is made up of one carbon atom and two oxygen atoms. Therefore, the mass of carbon present in the sample is:

mass of carbon = (mass of CO₂ × 1 mol CO₂) / (44.01 g CO₂/mol CO₂)

mass of carbon = (8.692 g × 1 mol CO₂) / (44.01 g/mol CO₂)

mass of carbon = 1.707 g

2.Hydrogen: The mass of water produced in the combustion of the sample is 1.142 g. Water is made up of two hydrogen atoms and one oxygen atom. Therefore, the mass of hydrogen present in the sample is:

mass of hydrogen = (mass of H₂O × 2 mol H₂O) / (18.02 g H₂O/mol H₂O)

mass of hydrogen = (1.142 g × 2 mol H₂O) / (18.02 g/mol H₂O)

mass of hydrogen = 0.127 g

3. Oxygen: The mass of oxygen in the sample can be calculated by subtracting the mass of carbon and hydrogen from the total mass of the sample.

mass of oxygen = (mass of sample - mass of carbon - mass of hydrogen)

mass of oxygen = (5.000 g - 1.707 g - 0.127 g)

mass of oxygen = 3.166 g

The next step is to convert the masses of carbon, hydrogen, and oxygen into moles by dividing each mass by its respective molar mass. The molar mass of carbon is 12.01 g/mol, the molar mass of hydrogen is 1.008 g/mol, and the molar mass of oxygen is 16.00 g/mol. The number of moles of each element is as follows:

moles of carbon = 1.707 g / 12.01 g/mol = 0.142 moles

moles of hydrogen = 0.127 g / 1.008 g/mol = 0.126 moles

moles of oxygen = 3.166 g / 16.00 g/mol = 0.198 moles

The final step is to determine the simplest whole-number ratio of the atoms present in the compound. To do this, divide each of the moles by the smallest number of moles (in this case, 0.126 moles):

moles of carbon = 0.142 / 0.126 = 1.13 ≈ 1

moles of hydrogen = 0.126 / 0.126 = 1

moles of oxygen = 0.198 / 0.126 = 1.57 ≈ 2

Therefore, the empirical formula of the unknown insecticide is C₁H₁.57O1 or C₅H₆ClO₃.

The molecular formula of a compound is a multiple of its empirical formula. To find the molecular formula of the compound, you need to know its molar mass. In this case, the molar mass of the unknown insecticide is around 354 g/mol. To find the molecular formula, you need to divide the molar mass by the empirical formula mass (the sum of the atomic masses in the empirical formula).The empirical formula mass of C₅H₆ClO₃ is:

1(12.01) + 1(1.01) + 3(16.00) + 1(35.45) = 154.47 g/mol

The molecular formula mass is 354 g/mol. Therefore, the ratio of the molecular formula mass to the empirical formula mass is:

ratio = molecular formula mass / empirical formula mass

ratio = 354 g/mol / 154.47 g/mol

ratio = 2.29

The molecular formula is the empirical formula multiplied by the ratio. Therefore, the molecular formula of the unknown insecticide is:

C₅H₆ClO₃ × 2.29 = C₂₅H₃₀Cl₆O₁₅

Learn more about empirical and molecular formula: https://brainly.com/question/13058832

#SPJ11

Answer:

distilling. since the liquids have different boiling points distilling would be the best.

Answer: Distilling

Explanation: this is correct

What is Solidification?

The process by which liquid metals turn into tiny solid particles at the phase boundary temperature is known as solidification or freezing.

How does solidification occur?

Solidification occurs when a liquid's temperature is reduced below its freezing point. Although the freezing point and melting point of the majority of materials are the same temperatures, this is not always the case and the words freezing point and melting point are not synonymous.

When a liquid turns into a solid, the process is always exothermic, which means heat is released.

Based on casting technology, solidification is a key component of several other processes, such as crystal growth, welding, surface alloying, the manufacturing of ingots, and the purification and refinement of raw materials. It is a crucial step in the technology of metals, as well as ceramics and polymers.

Learn more about the solidification process here,

https://brainly.com/question/3314619

#SPJ4

Answer:

boiling of water.

Explanation:

Answer:

Examples

Explanation:

Changes in the size or form of matter are examples of physical change. Physical changes include transitions from one state to another, such as from solid to liquid or liquid to gas. Cutting, bending, dissolving, freezing, boiling, and melting are some of the processes that create physical changes.

Answer: A: When the rider is at the top of the hill, her potential energy is greatest, and her kinetic energy is the least.

Explanation:

Answer:

Explanation:

3

Significant figures are the number of digits that add to the correctness of a value, frequently a measurement. The following numbers are three significant digits 876000, 1.20 x 10⁵, and 8.77 x 10⁻⁴.

The number of significant single digits (0 to 9 inclusive) in the coefficient of expression in the scientific notation is referred to as "significant figures" (SF). The expression's number of significant figures reveals the engineer's or scientist's level of assurance or precision when expressing a quantity.

When a number is rounded off, its value is maintained but is brought closer to the next number, simplifying the number. The crucial figures are preserved when numbers are rounded off.

The following numbers are rounded off:

1. 876000

2. 1.20 x 10⁵

3. 8.77 x 10⁻⁴

To know more about significant digits, visit;

https://brainly.com/question/30785112

#SPJ7

Group A represents arguments for free trade. The reasons provided in Group A support the idea of promoting free trade and removing barriers to international trade. That, the consumers have a larger variety of goods and

services to choose from. U.s. companies should be forced to keep prices low. A better climate is created for investment and entrepreneurship.

The group emphasizes the benefits of having a larger variety of goods and services available for consumers to choose from, and how free trade encourages a better climate for investment and entrepreneurship. They do not believe in forcing companies to keep prices low, as that goes against the principles of a free market economy.

On the other hand, Group B's arguments suggest a need for protectionism and limitations on free trade, as they prioritize the growth and protection of certain industries and the national security of the country. They believe that countries should diversify to avoid dependence on a few industries, but this can be achieved through strategic planning and policies rather than limiting free trade.

You can learn more about free trade at: https://brainly.com/question/30239076

#SPJ11

Answer:

copper carbonate reaction is known as the termed of thermal decomposition

reaction

Answer:

The reaction you are referring to is:

Mg + 2AgNO3 → Mg(NO3)2 + 2Ag

0.960 moles of silver will be produced

Explanation:

The balanced equation shows that 1 mole of Mg reacts with 2 moles of AgNO3 to produce 2 moles of Ag.

If we start with 0.480 moles of Mg, then we will produce 0.480 * 2 / 1 = 0.960 moles of Ag.

Here is the calculation:

Number of moles of Ag produced = (Number of moles of Mg) * (Moles of Ag produced per mole of Mg)

= 0.480 moles * 2 moles/mole

= 0.960 moles

Therefore, 0.960 moles of silver will be produced if the reaction starts with 0.480 moles of Mg.

The command that allows moving a file from one location to another is the "mv command".

The mv command renames or transfers files and folders from one directory to another. A file or directory keeps its base file name when moved to a new directory. All links to other files are preserved when you transfer a file, with the exception of when you move it to a different file system. A directory and its contents are added beneath the existing directory when you transfer a directory into it.

The TargetDirectory option of the mv command allows you to provide a new file name or a new directory path name when renaming a file or directory.

To knwo more about mv command

https://brainly.com/question/30737863

#SPJ11

Answer:

solubility

Explanation:

the solid substances will be added to water to see which one is soluble

The molecular formula of the compound is PCl₃ if the molecular mass of the compound is 137.32 g/mol.

An empirical formula can be described as a formula that tells about the relative ratios of different atoms in a compound.

The empirical formula for this compound containing phosphorus and chlorine can be calculated as follows;

As the compound is composed of 22.5% phosphorous and 77.5% chlorine, therefore;

Phosphorus = (22.5/100) × 137.32 = 0.225 × 137.32 = 30.897

Chlorine = (77.5/100) × 137.32 = 0.775 × 137.32 = 106.423

Now we can find the moles of each atom by using their molar mass as follows;

Phosphorus = 30.897 ÷ 30.97 = 0.998 moles

Chlorine = 106.423 ÷ 35.453 = 3.002 moles

Now dividing each mole value by the smallest determined number of moles (0.998) as follows;

Phosphorus = 0.998 / 0.998 = 1 mole

Chlorine = 3.002 / 0.998 = 3.008 ≈ 3 moles

Therefore the molecular formula of the compound will be PCl₃.

To learn more about the empirical formula; click here:

https://brainly.com/question/28080770

#SPJ4

Answer:

b

Explanation: