Why is it necessary to mix any solution that does not show an immediate change?.

Answer:

G, A, A, T, C, C, G, A, A, T, G, G, T

Explanation:

Answer:

D. I think

.........mm..

The empirical formula of the compound that is formed is PO3.

We have to note that the empirical formula can be said to be the simplest formula of the substance that is under consideration. In this case the question said that we have to find the empirical formula of the compound that is formed.

The mass of oxygen is 2.84−1.24 = 1.60g

                                                  P                           O

Combining mass                   1.24g                       1.60g

No. of moles of atoms -   1.24/31= 0.04                 1.60/16= 0.10

Ratio of moles                                1                         2.5

Thus the empirical formula of the compound is PO3

Learn more about empirical formula:https://brainly.com/question/4175149

#SPJ1

We want to write the nuclear equation for the beta decay of Aluminium-25.

The equation is:

\(^{25}_{13}Al \implies ^{25}_{14}Si + ^{0}_{-1}e\)

First, as you may know, in a beta decay the number of protons is increased by one. Aluminium has 13 of them, so after the decay, we will have 14 protons.

This means that the aluminium will transform into silicon, then the nuclear equation is just:

\(^{25}_{13}Al \implies ^{25}_{14}Si + ^{0}_{-1}e\)

Where the:

\(^{0}_{-1}e\)

Is an electron, which is the emitted particle in the beta decay.

If you want to learn more, you can read:

https://brainly.com/question/4184205

The metal which will reach the highest temperature is the metal with the lowest specific heat capacity.

The amount of heat Q = mcΔT where

Making ΔT subject of the formula, we have

ΔT = Q/mc

Given that Q and m are the same for each metal,

ΔT ∝ 1/c

We see that the temperature change is inversely proportional to the specific heat capacity.

Since the metals are at the same temperature, the metal which will reach the highest temperature is the metal with the lowest specific heat capacity.

So, the metal which will reach the highest temperature is the metal with the lowest specific heat capacity.

Learn more about temperature here:

https://brainly.com/question/16559442

#SPJ12

High-energy matter consisting of positively and negatively charged particles is Plasma.

Plasma is high - energy matter consist of positively particles and negatively charged particles. This is the most common state of matter that is plasma state. Matter consisting negatively charged particles and positively charged particles and overall charge is neutral . Particles have high energy that when collide, electrons knocked loose from atom and forming positive ion and negative ion. particles are moving very fast in plasma state. Examples of plasma are stars, neon tubes , lightening bolts, fluorescent lights, fire.

Thus,   High-energy matter consisting of positively and negatively charged particles is Plasma.

To learn more about plasma here

https://brainly.com/question/18207038

#SPJ1

Answer:

what is the quetion.......

Explanation:

Answer:

−7.389056fo3+5.436564f

−l2o3+2l

Explanation:

2al+f(2.7182822)o3=al2o3+2f(2.718282)

Step 1: Add -al^2o^3 to both sides.

7.389056fo3+2al+−al2o3=al2o3+5.436564f+−al2o3

−al2o3+7.389056fo3+2al=5.436564f

Step 2: Add -7.389056fo^3 to both sides.

−al2o3+7.389056fo3+2al+−7.389056fo3=5.436564f+−7.389056fo3

−al2o3+0fo3+2al=−7.389056fo3+5.436564f

Step 3: Factor out variable a.

a(−l2o3+2l)=−7.389056fo3+5.436564f

Step 4: Divide both sides by -l^2o^3+2l.

a(−l2o3+2l)

−l2o3+2l

=

−7.389056fo3+5.436564f

−l2o3+2l

a=

−7.389056fo3+5.436564f

−l2o3+2l

HNO3 and HBr can also be used instead of the provided acids (h2so4 and h3po4) to isolate solid copper in this experiment. Solid copper can be isolated by reacting it with acid. This is achieved in two stages: stage one, where copper reacts with sulfuric acid to produce copper sulfate and hydrogen gas, and stage two, where copper sulfate is reduced to copper using hydrogen gas.  

Therefore, in part b of the experiment, H2SO4 and H3PO4 are used. HNO3 and HBr can also be used instead of H2SO4 and H3PO4 to isolate solid copper. H2S and H2CO3 cannot be used as the acids to isolate solid copper. 'Hence, the correct options are : HNO3 and HBr Therefore, both HBr and HNO3 could be used in place of the acids (H2SO4 and H3PO4) to isolate solid copper in part b of this experiment.

Know more about sulfuric acid here:

https://brainly.com/question/1107054

#SPJ11

When alkaline hydrolysis was first invented, people were hired for various roles related to the process and implementation of this technology. Some of the jobs that emerged include Chemical engineers, Technicians and operators, Waste management specialists, Scientists and researchers.

Chemical engineers: These professionals played a crucial role in developing and optimizing the alkaline hydrolysis process. They were responsible for designing the equipment, developing the necessary chemical reactions, and ensuring the efficient operation of the system.

Technicians and operators: Skilled technicians and operators were hired to operate and maintain the alkaline hydrolysis equipment. They were trained to monitor the process parameters, handle the chemicals involved, and ensure the proper functioning of the system.

Waste management specialists: With the introduction of alkaline hydrolysis as a method for disposal of organic waste, specialized professionals in waste management were employed to oversee the proper handling and treatment of the waste materials. They were responsible for implementing safety protocols, managing waste streams, and complying with environmental regulations.

Scientists and researchers: Alkaline hydrolysis required scientific expertise for continuous improvement and innovation. Scientists and researchers were hired to study the process, analyze the results, and explore potential applications in various fields such as biofuel production and chemical synthesis.

Overall, the introduction of alkaline hydrolysis created employment opportunities for professionals in engineering, chemistry, waste management, and research, among others, as this technology gained recognition and adoption.

To know more about hydrolysis , click here, https://brainly.com/question/31132313

#SPJ11

Answer: c

Explanation:

The statement which is not correct about global environment indicator is that global grain production has grown continuously since 1950, but grain production per person has fallen sharply over that time.

Global grain output has increased since 1950 as a result of enhanced irrigation, fertilization, new variety of crops, and other advancements. Global grain production has dropped, but, per person. The increase in the human population is to blame for this. The distribution of enough food per capita declines as the amount of habitats rises.

Therefore, despite a reasonably consistent increase in global grain production since 1950, grain production per person has fallen sharply throughout that time. However, this does not indicate the global environment as do the other options.

To know more about global environment, visit:

https://brainly.com/question/15116815

#SPJ4

The complete question is:

Which statement regarding a global environmental indicator is NOT correct? (a) Concentrations of atmospheric carbon dioxide have been rising quite steadily since the Industrial Revolution. (b) World grain production has increased fairly steadily since 1950, but worldwide production of grain per capita has decreased dramatically over the same period. (c) For the past 130 years, average global surface temperatures have shown an overall increase that seems likely to continue. (d) World population is expected to be between 8 billion and 10 billion by 2050.

When oil from a tin is poured through a funnel placed tightly into the neck of a bottle, the oil stays in the funnel because the air pressure inside the bottle prevents the oil from entering the bottle.

The force that air, whether compressed or unconfined, applies to whatever surface it comes into touch with is known as air pressure.

The air in the bottles exerts a force on the liquid that is to be poured inside it.

Since the air has no way of escaping, the oil cannot be poured into the bottle.

However, if a little space is allowed by the funnel for the air to escape, the liquid can then be poured into the bottle.

Learn more about air pressure at: https://brainly.com/question/12870338

#SPJ1

The molarity of 0.75 moles of sodium chloride is dissolved to make 0. 05 liters of the solution is 15 M.

To find the molarity of the solution, we need to use the formula:
Molarity (M) = moles of solute / liters of solution

We are given the moles of solute (0.75 moles of sodium chloride) and the liters of solution (0.05 liters). Plugging these values into the formula, we get:
Molarity (M) = 0.75 moles / 0.05 liters
Molarity (M) = 15 M

Therefore, the molarity of the solution is 15 M. This means that there are 15 moles of sodium chloride dissolved in 1 liter of solution.

Your question is incomplete, but most probably your full question was

Find the molarity of the following solutions: 0.75 moles of sodium chloride is dissolved to make 0. 05 liters of solution

For more information about molarity refers to the link: https://brainly.com/question/16587536

#SPJ11

When she heats the bowl, it forms a new compound that may be white before heating and white or some other dark color after heating.

New substances are formed when different kinds of atoms combine to form compounds. New compounds do not have the same physical or chemical properties as the original elements. you have your own new life. Compounds are described using formulas that indicate which elements of the periodic table are combined.

Compounds are formed when two or more elements combine in a chemical reaction. Complex molecules like proteins are formed by a series of reactions involving elements and simple compounds. Compounds are formed through chemical reactions. Elements of a compound are held together by chemical bonds. A chemical bond is an attraction between atoms or ions that share or transfer valence electrons.

Learn more about A new compound here:-https://brainly.com/question/26487468

#SPJ1

Answer: This is called a chemical reaction.

Explanation: Gas may form, heat may be produced, and color may change. These types of changes indicate that a chemical reaction has occurred.

The number of molecules in one mole of a substance: is the same for all substances. The correct option is (C).

This fundamental concept is known as Avogadro's constant or Avogadro's number, which is approximately 6.022 × 10^23 molecules per mole.

Avogadro's constant represents the number of entities (atoms, molecules, ions, etc.) in one mole of a substance.

It is a fundamental constant in chemistry and is used to relate macroscopic quantities, such as mass and volume, to microscopic quantities, such as the number of particles.

Regardless of the molecular weight or atomic weight of a substance, one mole of any substance will contain the same number of molecules or particles.

For example, one mole of oxygen gas (O2) contains the same number of molecules as one mole of carbon dioxide (CO2), despite their different molecular weights.

This concept is crucial in stoichiometry, where the balanced equations of chemical reactions are used to determine the ratios of reactants and products in terms of moles.

Avogadro's constant allows for the conversion between the macroscopic world of grams and the microscopic world of molecules or particles.

To know more about "Molecules" refer here:

https://brainly.com/question/1078183#

#SPJ11

The reading on a barometer would change if you were to take one on a trip from Los Angeles to Lake Tahoe, which is at a much higher altitude.

1. A barometer measures atmospheric pressure.
2. Atmospheric pressure decreases with an increase in altitude.
3. Los Angeles is at a lower altitude (approximately 305 feet or 93 meters above sea level) compared to Lake Tahoe (about 6,225 feet or 1,897 meters above sea level).
4. As you travel from Los Angeles to Lake Tahoe, the altitude increases.
5. Due to the increase in altitude, the atmospheric pressure decreases.
6. The barometer reading in Lake Tahoe will be lower than the reading in Los Angeles.

In conclusion, the barometer reading would be lower in Lake Tahoe compared to Los Angeles due to the higher altitude and the resulting decrease in atmospheric pressure.

To know more about readings on a barometer :

https://brainly.com/question/2275528

#SPJ11

If you were to take a barometer on a trip from Los Angeles to Lake Tahoe, which is at a much higher altitude, the reading on the barometer would decrease as you ascend to higher altitudes.

A barometer is a device used to measure atmospheric pressure. The pressure at sea level is approximately 1013 hPa (hectopascals) or 29.92 inches of mercury (inHg). As you increase in altitude, the pressure decreases due to the decreased weight of the atmosphere above. For every 1000 feet increase in altitude, there is an approximate decrease of 1 inch of mercury (inHg) or 33 hPa in pressure.

Lake Tahoe has an elevation of approximately 6,225 feet, which is significantly higher than Los Angeles, which is only 233 feet above sea level. As a result, the atmospheric pressure at Lake Tahoe would be lower than the pressure in Los Angeles. Therefore, if you were to take a barometer from Los Angeles to Lake Tahoe, the reading on the barometer would decrease as you ascend to higher altitudes.

In summary, the reading on a barometer would decrease as you ascend to higher altitudes such as Lake Tahoe from Los Angeles.

Learn more about barometer here:

https://brainly.com/question/2856885

#SPJ11

Approximately 777.6 grams of water is needed to make 7.2 moles of glucose based on the balanced equation.

The balanced equation provided is:

6CO2 + 6H2O -> C6H12O6 + 6O2

From the equation, we can see that for every 6 moles of water (H2O), 1 mole of glucose (C6H12O6) is produced. Therefore, we need to determine the amount of water required to produce 7.2 moles of glucose.

The mole ratio between water and glucose is 6:1. This means that for every 6 moles of water, we obtain 1 mole of glucose. To find the amount of water needed for 7.2 moles of glucose, we set up a proportion using the mole ratio:

(6 moles H2O / 1 mole glucose) = (x moles H2O / 7.2 moles glucose)

Solving for x, we can cross-multiply:

6 moles H2O * 7.2 moles glucose = x moles H2O * 1 mole glucose

43.2 moles H2O = x moles H2O

Therefore, we need 43.2 moles of water to produce 7.2 moles of glucose.

To convert moles of water to grams, we need to know the molar mass of water, which is approximately 18 g/mol. Using the molar mass, we can calculate the mass of water needed:

Mass of water = moles of water * molar mass of water

Mass of water = 43.2 moles * 18 g/mol

Mass of water = 777.6 g

Therefore, approximately 777.6 grams of water is needed to make 7.2 moles of glucose based on the balanced equation.

for more such question on glucose visit

https://brainly.com/question/397060

#SPJ8

Since pH is 9 the solution is not particularly acidic. The answer is fairly straightforward. In other words, only a very small percentage of H\(_2\)O molecules possess a third \(H^+\) atom connected to them.

pH is a numerical indicator of how acidic or basic aqueous and other liquid solutions are. The phrase, which is frequently used in science, agriculture, and chemistry, converts the hydrogen ion concentration, which typically ranges between 1 and 1014 gram-equivalents per litre, into numbers ranging from 0 to 14. The hydrogen ion concentration in pure water, which has a pH of 7, is 107 gram-equivalents per litre. Since pH is 9 the solution is not particularly acidic. The answer is fairly straightforward. In other words, only a very small percentage of H\(_2\)O molecules possess a third \(H^+\) atom connected to them.

To know more about pH, here:

https://brainly.com/question/2288405

#SPJ1

Considering the Boyle's law, the new volume becomes 1,148,344.444 mL or 1148.34 L.

Boyle's law relates pressure and volume, stating that the volume occupied by a given mass of gas at constant temperature is inversely proportional to pressure. This means that if the pressure increases, the volume decreases, while if the pressure decreases, the volume increases.

Boyle's law is expressed mathematically as:

P×V=k

Now it is possible to assume that you have a certain volume of gas V1 which is at a pressure P1 at the beginning of the experiment. If you vary the volume of gas to a new value V2, then the pressure will change to P2, and the following is true:

P1×V1=P2×V2

In this case, you know:

Replacing in the Boyle's law:

10335.1 atm ×250 mL= 2.25 atm×V2

Solving:

(10335.1 atm ×250 mL)÷ 2.25 atm= V2

1,148,344.444 mL= 1148.34 L=  V2

Finally, the new volume becomes 1,148,344.444 mL or 1148.34 L.

Learn more about Boyle's law:

https://brainly.com/question/4147359

#SPJ1

Answer:

Go to the bottom-right corner of your taskbar, then click the Volume Control icon. A small window will pop up, and it will offer access to the volume level control. Slide the bar to set the volume to your preferred level. This may be one of the quickest and easiest ways to change the volume level of your computer.

Answer:

Any individual offspring produced through asexual reproduction is always: genetically identical to its parent. made up of cells with a cell wall. different from all of its siblings

Answer:

2000\(cm^{3}\)

Explanation:

So the equation of volume of a rectangular solid is:

V= l * w * h

Where l is length w is width and h is height

To find the volume:

V= 40 * 10 * 5

V= 400 * 5 ( multiply 40 and 10 to get 400)

V= 2000 \(cm^{3}\) ( multiply 400 and 5 to get 2000)

The unit for volume is \(cm^{3}\) in this case.

HOPE THIS HELPED

Answer:

2Na + 2H2O → 2NaOH + H2

Explanation:

This is the balanced equation of,

Sodium + water → sodium hydroxide + hydrogen

Answer:

The kinetic theory of matter can be used to explain how solids, liquids and gases are interchangeable as a result of increase or decrease in heat energy. If it is cooled the motion of the particles decreases as they lose energy.

Explanation:

Being burned out means feeling empty and mentally exhausted, devoid of motivation.

What is burnout?

The ways to cope with personal stress:

Four methods that helped many supervisors cope with stress are

(1) engaging in physical exercise

(2) practicing relaxation techniques

(3) gaining a sense of control

(4) developing and maintaining good interpersonal relationships.

learn more about stress management at

Brainly.com https://brainly.com/question/9901326

#SPJ4