Why do you think adding water (dilution) changes how acidic or basic the liquid is? Explain your thinking.

Answer:

distance and time

Answer:

d. Distance and time

Explanation:

Why was the American Federation of

Labor a different type of labor union

(compared to the Knights of Labor)

and why did it grow during the 20th

century?

The answer, rounded to the correct number of significant figures, is 58 lb*ft. To calculate the answer, we need to multiply 18.18 lb by 3.2 ft.

To determine the correct number of significant figures in the answer, we need to follow certain rules:

1. When multiplying, the number of significant figures in the answer should be equal to the least number of significant figures in the original numbers being multiplied.

In this case, 18.18 lb has four significant figures, and 3.2 ft has two significant figures. The number with the least significant figures is 3.2 ft, so the answer should have two significant figures.

2. Multiply the numbers as usual, but round the answer to the correct number of significant figures.

18.18 lb x 3.2 ft = 58.176 lb*ft

Since we need two significant figures, we round the answer to 58 lb*ft.

Therefore, the answer, rounded to the correct number of significant figures, is 58 lb*ft.

To know more about numbers visit-

https://brainly.com/question/24908711

#SPJ11

The volume of 53.5 g of O₂ at 30.1°C and 110.0 kPa is 1 m³ approximately

According to Charles' Law, while pressure is maintained constant, the volume of a given amount of gas varies in direct proportion to the absolute temperature of the gas. The Kelvin scale is used to measure temperature to determine the absolute temperature.

To find the volume of a gas, we can use the Ideal Gas Law:

PV = nRT

where P is the pressure of the gas, V is the volume of the gas, n is the number of moles of gas, R is the universal gas constant, and T is the temperature of the gas in Kelvin.

First, we need to convert the given temperature of 30.1°C to Kelvin:

T = 30.1°C + 273.15 = 303.25 K

Next, we need to determine the number of moles of O₂ present. We can use the molar mass of O₂ to convert from grams to moles:

molar mass of O₂ = 32.00 g/mol

moles of O₂ = 53.5 g / 32.00 g/mol = 1.671875 mol

Now we can rearrange the Ideal Gas Law to solve for V:

V = nRT / P

V = 1.671875 × 8.3145 × 303.25 /110 k × 1000 Pa / kPa

V = 0.062878 m³

Finally, we round the answer to the nearest tenth: (rounded to one decimal place) V = 1 m³

To know more about volume visit:-

brainly.com/question/29796637

#SPJ1

nitrogen and chloro fluro carbon gas is not an example of a naturally occurring greenhouse gas

Water vapour, carbon dioxide, methane, nitrous oxide, and ozone are examples of naturally occurring greenhouse gases. Hydro-fluorocarbons (HFCs), perfluorocarbons (PFCs), and sulphur hexafluoride (SF6) are examples of artificial greenhouse gases that are produced via a number of industrial operations. Carbon dioxide, methane, ozone, nitrous oxide, chlorofluorocarbons, and water vapour are some examples of greenhouse gases. The gas that is not a greenhouse gas is therefore nitrogen. The different greenhouse gases include nitrous oxide, water vapour, ozone, chlorofluorocarbons, methane, and chlorofluorocarbons. Infrared light cannot pass through oxygen or nitrogen, hence they are not considered greenhouse gases. These molecules are invisible because stretching one of them has no effect on the electric field. These symmetric molecules are composed of two identical atoms whose electric fields simply cancel one another out.

which gas is not an example of a naturally occurring greenhouse gas?

1. nitrogen

2.cholrofluoro carbons

3. oxygen

4. carbondioxide

Learn more about nitrogen here:

https://brainly.com/question/16711904

#SPJ4

After the death of the Buddha, Buddhism became a formal religion through the efforts of his followers, who continued to spread his teachings and organized into communities known as sanghas. Over time, these sanghas developed a system of governance, with monastic councils, hierarchical structures, and formalized practices and rituals.

One key factor in the formalization of Buddhism was the development of the Tripitaka, a collection of the Buddha's teachings, which were written down in the Pali language and preserved by monastic communities. The Tripitaka contains three major sections: the Vinaya Pitaka, which outlines the rules and guidelines for monastic life; the Sutta Pitaka, which contains the Buddha's discourses on a wide range of topics; and the Abhidhamma Pitaka, which provides a detailed analysis of Buddhist psychology and philosophy.
The spread of Buddhism was also facilitated by the patronage of rulers such as Asoka, who supported the religion and helped to spread it throughout his empire. However, this support was not always consistent, and Buddhism faced periods of persecution and decline in various parts of the world. Despite these challenges, Buddhism has continued to evolve and adapt over the centuries, with different schools and traditions emerging in different regions. Today, Buddhism is practiced by millions of people around the world, and continues to offer a unique and powerful perspective on the nature of reality, the human condition, and the path to liberation.

for such more questions on system

https://brainly.com/question/23117865

#SPJ8

Hydrogen peroxide is the chemical agent that produces highly reactive hydroxyl-free radicals and also decomposes to O2 gas.

Hydrogen peroxide is a pale blue liquid that is used in many industries as a strong oxidizer and bleaching agent.

It is a highly reactive chemical that is unstable when exposed to light and heat, and it decomposes to O2 gas, making it a highly effective oxidizing agent.

Hydrogen peroxide is an oxidizing agent that is used to disinfect and sanitize surfaces and equipment in many industries, including healthcare, food processing, and agriculture.

It is a broad-spectrum antimicrobial agent that is effective against bacteria, viruses, fungi, and spores.

It is also used as a bleaching agent in the pulp and paper industry and the textile industry, and as a rocket propellant in the aerospace industry.

Hydrogen peroxide can be used alone or in combination with other chemicals to produce highly reactive hydroxyl-free radicals, which are effective in destroying many types of microorganisms.

Hydroxyl-free radicals are highly reactive and can react with almost any organic compound, including DNA and proteins, causing damage to the cell and killing the microorganism.

Hydrogen peroxide is also used in the production of many other chemicals, including peracetic acid, which is a highly effective disinfectant and sanitizer.

Peracetic acid is a powerful oxidizing agent that is used in many industries to sanitize surfaces and equipment, including food processing and healthcare facilities.

In conclusion, hydrogen peroxide is the chemical agent that produces highly reactive hydroxyl-free radicals and also decomposes to O2 gas.

It is a versatile chemical that is used in many industries as an oxidizing agent, bleaching agent, disinfectant, and sanitizer.

It is also used in the production of many other chemicals, including peracetic acid, which is a highly effective disinfectant and sanitizer.

For more such questions on Hydrogen peroxide

https://brainly.com/question/16217119

#SPJ8

The volume of hydrogen gas produced in the reaction is approximately 0.67 m³. None of the given option is correct.

To determine the volume of hydrogen gas produced in the reaction, we need to calculate the number of moles of hydrogen gas first. Then, we can use the ideal gas law to convert the number of moles to volume at room temperature and pressure.

From the balanced chemical equation:

Zn + 2HCl -> ZnCl₂ + H₂

We can see that 1 mole of zinc reacts with 2 moles of hydrochloric acid to produce 1 mole of hydrogen gas.

Given:

Mass of zinc (Zn) = 4.55 g

Molar mass of zinc (Zn) = 65.38 g/mol

Concentration of hydrochloric acid (HCl) = 2.25 mol/dm³

Volume of hydrochloric acid (HCl) = 50 cm³ = 50 × 10⁻³ dm³

First, we calculate the number of moles of zinc:

Number of moles of zinc (Zn) = Mass / Molar mass = 4.55 g / 65.38 g/mol

Since the ratio between zinc and hydrogen gas is 1:1, the number of moles of hydrogen gas produced is also equal to the number of moles of zinc.

Now, we can convert the number of moles of hydrogen gas to volume using the ideal gas law:

PV = nRT

Assuming room temperature (around 298 K) and pressure (around 1 atm), we can rearrange the equation to solve for volume (V):

V = nRT / P

Plugging in the values:

V = (Number of moles of hydrogen gas) × (Ideal gas constant) × (Temperature) / (Pressure)

Calculating the volume of hydrogen gas:

V = (4.55 g / 65.38 g/mol) × (0.0821 dm³·atm/mol·K) × (298 K) / (1 atm)

V ≈ 0.67 dm³

Converting to the desired units:

V ≈ 0.67 × 10³ cm³ = 0.67 × 10³ × 10⁻³ m³ = 0.67 m³

None of the given answer options match the calculated volume, so it seems there might be an error in the provided options.

For more such questions on hydrogen gas

https://brainly.com/question/19813237

#SPJ8

Answer:

It has less carbon dioxide than when it entered the gills, it has more oxygen than when it entered the gills

Explanation:

there is none i just found the answer =_=

Blood is different after it is pumped through gills as it has less carbon dioxide and more oxygen when it enters the gills through the process of diffusion.

Diffusion is defined as the process of movement of molecules which takes place under concentration gradient. It helps in movement of substances in and out from the cell.The molecules move from lower concentration region to a higher concentration region till the concentration becomes equal.

There are 2 main types of diffusion:

1) simple diffusion-process in which substances move through a semi-permeable membrane without the aid of transport proteins.

2) facilitated diffusion- It is a passive movement of molecules across cell membrane from higher concentration region to lower concentration.

There are 2 types of facilitated diffusion one is osmosis and dialysis.

Learn more about diffusion,here:

https://brainly.com/question/14852229

#SPJ5

Answer:

chloroplasts

Explanation:

In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.

Answer: The horizontal velocity V x

Explanation:This is because If there is no external force there is nothing putting it in motion and so the Horizontal velocity doesnt change at all.

Answer:

Explanation: 10.05 mL

To determine the volume of the object using water displacement, we subtract the initial volume (measurement 1) from the final volume (measurement 2).

Volume = Measurement 2 - Measurement 1

Volume = 19.20 mL - 9.15 mL

Volume = 10.05 mL

Therefore, the volume of the object, as determined by water displacement, is 10.05 mL.

conversion between mass and moles#

A substance's molar mass is calculated by multiplying its relative atomic mass by the molar mass constant (1 g/mol). The molar mass constant can be used to convert mass to moles. By multiplying a given mass by the molar mass, the amount of moles of the substance can be calculated.

The given nuclear reactions can be completed based on the atomic number of and mass number of the reactant and product given. The first reaction is completed as:

\(\rm _{90}^{234} Th \rightarrow _{90}^{234} Th + _{0}^{0} \gamma\)

Heavy unstable radioactive nuclei undergo nuclear reactions by the absorption or emission of charged particles.

The first nuclear reaction given in the table is giving the same thing with no change in mass number and atomic number. Thus, it is a gamma decay of thorium -234 as written above.

The second nuclear reaction is the positron emission by oxygen as follows:

\(\rm _{8}^{15} O \rightarrow _{7}^{15} N + _{+1}^{0} e\)

Here, the atomic number decreases by one unit in the product.

For the last nuclear reaction given, it describes, beta decay of boron to form nitrogen as written below, where the atomic number increases by one.

\(\rm _{6}^{14} B \rightarrow _{7}^{14} N + _{-1}^{0}e\)

Similar way, other nuclear reactions can be completed.

Find more on nuclear reactions:

https://brainly.com/question/12649087

#SPJ1

Researchers have found that a diet restricted in calories reduces the oxidative damage created by free radicals.

If there are too many free radicals in the body, then such a scenario can lead to oxidative stress.  A diet that is high in fats will lead to increased amounts of lipid peroxidation inside the body. As a result of these increased activities, more free radicals will be released.

A diet restriction plan reduces the consumption of fats which are the leading cause of oxidative stress. Hence, a diet that is less in calories will help in reducing oxidative damage.

However, studies from research have shown that the diet restriction plan should be long-term in order to get credible results.

To learn more about oxidative stress, click here:

https://brainly.com/question/28057286

#SPJ4

True. The reaction of sodium metal with water to form sodium hydroxide and hydrogen gas is highly exothermic, releasing a large amount of energy.

This reaction is also highly spontaneous, as it has a negative Gibbs free energy change (ΔG).

The spontaneity of the reaction can be explained by the fact that sodium metal has a lower electronegativity than hydrogen or oxygen, so it has a strong tendency to donate its electrons to these atoms to form stable ionic compounds.

The reaction also benefits from the increase in entropy that occurs as the solid sodium metal and liquid water are converted into the aqueous sodium hydroxide and gaseous hydrogen, increasing the disorder of the system.

Overall, the reaction is highly exothermic and spontaneous, making it a useful and commonly used method for producing hydrogen gas.

learn more about exothermic here:

https://brainly.com/question/31214950

#SPJ4

Matching the solutions with the appropriate letters, we have:

0.147 m CuSO4 - C

0.205 m Ni(NO₃)₂ - B

8.75 × 10⁻² m Cr(CH₃COO)₃ - D

0.380 m ethylene glycol - A

Based on the information provided, we need to match the given aqueous solutions with the appropriate letter from the column on the right. The options are:

A. Highest boiling point

B. Second highest boiling point

C. Third highest boiling point

D. Lowest boiling point

Let's analyze each solution and determine their boiling points:

0.147 m CuSO₄ (copper sulfate) - This is an ionic compound and will dissociate into Cu²⁺ and SO₄²⁻ ions in water. As an electrolyte, it will exhibit colligative properties, including an increase in boiling point. Therefore, this solution would have the third highest boiling point. So the match is C.

0.205 m Ni(NO₃)₂ (nickel nitrate) - Similar to the previous solution, this is also an ionic compound and will dissociate into Ni²⁺ and NO³⁻ ions in water. It will exhibit colligative properties, resulting in a higher boiling point. This solution would have the second highest boiling point. So the match is B.

8.75 × 10⁻² m Cr(CH₃COO)₃ (chromium(III) acetate) - This is also an ionic compound and will dissociate into Cr³⁺ and CH₃COO⁻ ions in water. Like the previous solutions, it will exhibit colligative properties, leading to an increase in boiling point. This solution would have the lowest boiling point. So the match is D.

0.380 m ethylene glycol - Ethylene glycol is a nonelectrolyte, and it does not dissociate into ions in water. Therefore, it does not exhibit colligative properties to the same extent as ionic compounds. However, it still has a significant effect on the boiling point due to its high boiling point itself. Ethylene glycol has the highest boiling point among the given options. So the match is A.

Matching the solutions with the appropriate letters, we have:

0.147 m CuSO₄ - C

0.205 m Ni(NO₃)₂ - B

8.75 × 10⁻² m Cr(CH₃COO)₃ - D

0.380 m ethylene glycol - A

To know more about boiling points:

https://brainly.com/question/31042597

#SPJ4

Answer:

I took a screen shot of your image, and wrote on top of it!

Explanation:

Hope this helps! :)

In order to answer the question first we must write the atomic number of each element:

Zirconium (Zr): 40

Cadmium (Cd): 48

Iridium (Ir): 77

Iron (Fe): 26

Then, we have to complete the distribution of electrons in each orbital for each atom:

The first 4 levels have the following distribution:

Level1: 1s

Number of electrones: 2

Level 2: 2s, 2p

Number of electrones 8 (2 in the s orbital and 6 in the p orbitals).

Level3: 3s, 3p, 3d

Number of electrones 18 (2 in the s orbital, 6 in the p orbital and 10 in the d orbitals)

Level 4: 4s, 4p, 4d, 4f

Number of electrones 32 (2 in the s orbital, 6 in the p orbitals, 10 in the d orbitals and 14 in the f orbitals)

The order in which the orbitlas are completed depends on the energy of each level. For example the 4s orbitals will be completed before the 3d orbitals because their energy is lower.

The order is as follows:

1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p...

Now, knowing the atomic number we can answer the question:

For Zirconium (total 40 electrones):

2 electrones are predicted in the 4d orbital

For Cadmium (total 48 electrones):

10 electrones are predicted in the 4d orbital

For iridium, as it has an atomic number higher than Cadmium we can predict tha it also complets the 4d orbital, then it has also 10 electrones in it.

For iron (total 26 electrones)

Iron has no electrones in the 4d orbitals

Here is a MATLAB code that calculates and plots the concentration profiles of NH ₃, NH₄+, NO₂-, and NO₃- as a function of time at T=298 K and neutral pH, given the rate constants and initial concentrations:

```matlab

% Rate constants (k) and initial concentrations ([C])

k1 = 0.1;   % Rate constant for NH₃ + H₂O₂ -> NH₂ + H₂O

k2 = 0.05;  % Rate constant for NH₂ + NO₃- -> NO₂- + H₂O

k3 = 0.08;  % Rate constant for NO₂- -> NO₃- + N₂

C_NH₃ = 1.0;    % Initial concentration of NH₃

C_H2₂O₂ = 0.5;   % Initial concentration of H₂O₂

C_NH₄ = 0.0;    % Initial concentration of NH₄+

C_NO₂ = 0.0;    % Initial concentration of NO₂-

C_NO₃ = 0.0;    % Initial concentration of NO₃-

% Time vector

t = 0:0.1:10;   % Time range from 0 to 10 with a step size of 0.1

% Calculation of concentrations at each time point

for i = 1:length(t)

   NH₃(i) = C_NH₃ * exp(-k1*t(i));

   NH₄(i) = C_NH₃ - NH₃(i);

   NO₂(i) = C_NO₂ + k₂ * (NH₄(i) - C_NH₄) * t(i);

   NO₃(i) = C_NO₃ + k₃ * NO₂(i) * t(i);

end

% Plotting concentration profiles

plot(t, NH₃, 'r-', t, NH₄, 'g-', t, NO₂, 'b-', t, NO₃, 'm-');

xlabel('Time');

ylabel('Concentration');

legend('NH₃', 'NH₄+', 'NO₂-', 'NO₃-');

```

The provided MATLAB code calculates and plots the concentration profiles of NH₃, NH₄+, NO₂-, and NO₃- as a function of time based on the given rate constants and initial concentrations. The code uses a time vector to define the time range for which the concentrations will be calculated.

Inside the for loop, the concentrations of NH₃, NH₄+, NO₂-, and NO₃- are calculated at each time point using the given rate constants and the previous concentrations. The concentration of NH₃ decreases exponentially over time due to the reaction NH₃ + H₂O₂ -> NH₂ + H₂O, where k1 is the rate constant. NH₄+ concentration is the difference between the initial NH₃ concentration and the current NH₃ concentration.

The concentration of NO₂- increases with time due to the reaction NH₂ + NO₃- -> NO₂- + H₂O, where k₂ is the rate constant. The change in NH₄+ concentration from its initial value is multiplied by k₂ and the time to calculate the increase in NO₂- concentration.

Finally, the concentration of NO₃- increases with time due to the reaction NO₂- -> NO₃- + N₂, where k₃ is the rate constant. The previous NO₂- concentration is multiplied by k₃ and the time to determine the increase in NO₃- concentration.

The resulting concentration profiles are then plotted using the plot function, with time on the x-axis and concentration on the y-axis. Each compound is represented by a different color line in the plot.

Learn more about the MATLAB code

brainly.com/question/31502933

#SPJ11

Pipelining allows concurrent execution in a system, with each stage taking 2.8 nanoseconds, resulting in a constant time of approximately 2.8 nanoseconds to complete 79 instructions, offering no time savings but enhancing throughput.

In a pipelined system, each stage can start working on the next instruction while the previous instruction is still completing the earlier stages. This allows for overlapping of instruction execution and can improve the overall throughput of the system.

If each stage requires 2.8 nanoseconds to complete its task, we can calculate the time required to complete 79 instructions without pipelining as follows:

Time without pipelining = Number of instructions × Time per instruction

                     = 79 instructions × 2.8 nanoseconds

                     = 221.2 nanoseconds

Now, let's consider the time required with pipelining. In an ideal pipelined system, each stage can start working on the next instruction as soon as the previous instruction enters that stage. This means that the time required to complete all instructions would be approximately equal to the time required for a single instruction to complete one stage, which is still 2.8 nanoseconds.

Therefore, with pipelining, the time required to complete 79 instructions would still be approximately 2.8 nanoseconds.

In this case, there would be no time saved in completing the instructions with pipelining compared to without pipelining. However, pipelining can still improve system throughput by allowing concurrent execution of multiple instructions.

To know more about the Pipelining refer here :

https://brainly.com/question/30005014#

#SPJ11

Answer:

Explanation:

NH3 + H2O ⇌ NH4  + OH-

0.35                              0.35

-log[OH-] = -log0.35 = 0.46 = pOH

14 - 0.46 = 13.54 = pH

Answer:

Non Polar

Explanation:

Non Polar molecule because of its linear symmetric shape

Answer: 680ml

Explanation:  (450grams)*(0.665g/ml) = 677 ml

Answer:

1- Oxygen in water

2- Brass, bronze and sterling silver

3- Air

Answer:

Orange

Explanation:

It has the highest frequency out of all the options.

Answer: 10y/s

Explanation:

I don't know I am having the same problem

because the industrial gas is very harmful for us it is made up chemical and toxic gases

Answer:

The usual culprit is burning coal.

Explanation:

This produces a lot of carbon dioxide as well as sulphur dioxide. Other industrial processes, and vehicle emissions, produce similar oxides unless they are 'scrubbed' out. They react with atmospheric moisture to produce acids like carbonic, sulphurous and nitrous acids. Which is then precipitated. It should be remembered that a volcanic eruption has this effect too.

Answer:

2 H2 + 1 O2 → 2 H2O

Explanation: