What is the definition of an Arrhenius acid?

Answer:

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

Explanation:

Hope this helps! :)

Answer:

B.mass of the neutrons and protons

Explanation:

hope it's help..

Answer: 4.48L of CH4 at STP is equal to 1.2×10^23 molecules

Explanation:

Explanation:

Cada producto o servicio, independientemente de su propósito, debe ser seguro de usar y desarrollado de acuerdo con los más altos estándares de calidad y seguridad.

Algunos ejemplos de cálculo incorrecto de ingredientes que tendrían graves consecuencias químicas podrían ser:

Medicamentos y vacunas: Este es quizás uno de los ejemplos que tendría las consecuencias más graves para las personas si hubiera un cálculo incorrecto de ingredientes, ya que la producción de medicamentos y vacunas es una industria que requiere la máxima calidad agregada debido a que se ocupa directamente de la salud y los errores de formulación pueden agravar la enfermedad y causar la muerte. Actualmente tenemos el ejemplo de la vacuna para el control de la pandemia, que antes de ser aprobada tuvo que someterse a una serie de investigaciones, pruebas en humanos y diferentes fases para demostrar su efectividad y no causar daño al organismo humano.

Cosméticos: Existen cosméticos de la industria de la belleza que tienen la función de prevenir el envejecimiento cutáneo, alisar el cabello, etc. Por tanto, un cálculo incorrecto de los ingredientes químicos también podría provocar daños irreversibles a la salud, como quemaduras en la piel, caída del cabello, alergias, cáncer, etc.

Alimentos: La industria alimentaria utiliza componentes químicos con el fin de conservar los productos y aumentar la vida útil, por lo que si se usan en cantidades mayores de las necesarias, dichos compuestos pueden causar enfermedades en las personas como intoxicación alimentaria, cáncer, gastritis, etc.

Answer:

A

Explanation:

Answer: 1.47 g

Explanation:

207.2 g/mol × 0.0071 mol = 1.47 g

You can find the molar mass of lead, Pb, on the periodic table, 207.2 g/mol.

0.0071 moles lead = 1.47112 grams

AMSWER:

B. I'm sorry if this is wrong

Explanation:

Answer:

5moles

Explanation:

number of moles=mass/molar mass

The molar mass of water is 18.0 g/mol. A mass of 90.0 grams of water is equivalent to 5 moles. Therefore, option B is correct.

The mass in grams of one mole of a substance is defined as its molar mass. Molar mass is measured in grams per mole, abbreviated as g/mol. The isotopic atomic mass of a single isotope of any given element is a value that compares the mass of that isotope to the mass of the isotope carbon-12.

A compound's molar mass can be calculated by adding the standard atomic masses (in g/mol) of its constituent atoms.

A compound's molar mass indicates the mass of one mole of that substance. In other words, it tells you how many grams of a compound there are per mole. As a result, the units for molar mass are grams/mole.

number of moles = mass / molar mas

=  90.0 grams /  18.0grams

= 5 moles

Thus, option B is correct.

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Answer:

52.5 g

Explanation:

Density= mass/volume

Rearranging the equation gives us m= d(V)

m= d(V)

m= (10.5 grams/cm^3)(5 cm^3)

m= 52.5 g

Answer:

Carbon monoxide, and water vapor was analyzed and found to contain 4.5 mol of carbon dioxide, 4.0 mol of carbon monoxide and 1.5 mole of water vapor. ... An ideal gas sample weighing 0.548 g at 100°C and 0.993 atm has a volume of 0.237 ... VSEPR predicts that an IF5 molecule

Explanation:

The volume of the nitroglycerin exploded can be calculated using the ideal gas equation. Here, the number of moles of water vapor formed is 10.5 moles. Then, the volume is 43807 L.

Ideal gas equation connects the pressure, temperature and volume of a gas with its number of moles as written in the expression below:

PV = nRT.

where R = 0.082 L atm /K mol

One mole of nitroglycerin produces 10 moles of water. Then,  239 g or 1.05 moles produces 10.5 moles of water vapor.

Given,

P = 45 mmHg = 0.05 atm

T = 2678°C = 2951 K

n = 10.5

The volume of water vapor is calculated as follows:

V = nRT/P

   = (10.5 mol × 0.082 L atm/K mol ×2951 K)/0.05 atm

   =  43807 L.

Therefore, the volume of water vapor produced is 43807 L.

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Answer:

It would tend to gain one electron and form a -1 ion. Aluminum is in the fifth column and therefore has 5 electrons in its outermost shell. It would tend to lose three electrons and form a +3 ion.

Explanation:

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Aluminum (Al) is an element with atomic number 13, which means it has 13 protons and 13 electrons in its neutral state.

When forming an ion, aluminum tends to lose three electrons. This is because aluminum belongs to Group 13 in the periodic table, also known as the "boron group" or "Group IIIA."

Elements in this group have three valence electrons in their outermost energy level. To achieve a stable electron configuration, aluminum can lose these three valence electrons, leaving behind a complete inner electron shell and forming a 3+ cation.

So, when aluminum forms an ion, it loses three electrons to become Al3+.

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Answer:

c

Explanation:

Answer:

I don't know sorry

Explanation:

ask tutor

The amount of chlorine will be 0.791 gram required to completely react with 0.0223 moles of sodium iodide .

The given chemical reaction is :

2Nal + [tex]Cl_{2}[/tex] → 2NaCl + [tex]I_{2}[/tex]

It is given that:

Amount of sodium iodide = 0.0223 mol.

Atomic mass of chlorine = 35.45 g.

The amount of chlorine can be calculated as:

0.0223mol. NaI × (1mol. Cl₂/2mol. NaI) × (35.45g/1mol. Cl2)

=0.791 grams

Therefore, the correct answer will be option (D).

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Answer:

1. false

2. true

Explanation:

I hope this helps

Answer:The answer is C) The total mass of C and D only.

Answer:

104 g

Explanation:

i just solved it

Answer:

The pressure in atm is 6.04 x 10^-3

Explanation:

Pressure of the gas is defined as the force exerted by the particles on the walls of the container. It is expressed in various terms like 'mmHg', 'atm', 'kiloPascals' etc..

All these units of pressure are inter convertible.

Pressure of the gas = 4.59 mm Hg

760 mm Hg = 1 atm

4.59 mm Hg= 1/760 x 4.59 = 6.04 x 10^-3atm

The pressure in atm is 6.04 x 10^-3

salat tarawih itu boleh dilakukan di masjis

Answer:

finally found

31th July 2000

Answer:

Specific heat is defined by the amount of heat needed to raise the temperature of 1 gram of a substance 1 degree Celsius (°C). Water has a high specific heat capacity which we'll refer to as simply "heat capacity", meaning it takes more energy to increase the temperature of water compared to other substances.

Explanation:

Answer:

Acid-base indicators are generally weak proteolytic that change color in solution according to the pH. The acid-base equilibrium of a weak acid type of indicator (HI) in water can be represented as. [I] The acid, HI, and the conjugate base, I−, have different colors. The equilibrium expression for this process is.

Answer: chemical

Explanation: whenever heat is applied, it indicates a chemical change

Here...........................

Answer:

Molecules of matter such as liquid, gas and solid still move even if the energy is transferred because it isn't a hundred percent. There is still energy and the time it took to transfer that said energy would have changed its state of matter.

Explanation:

Solid -the molecules are tight together. (touching)

Liquid - the molecules are close but not touching about mid way(not to far not to close)

Gas- the molecules in gasses are far apart.

It almost always goes from solid to liquid to gas. but in extreme conditions it could be different.

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Answer:

an agent that helps accept electrons on others like oxygen, halogens

Explanation:

a substance that tends to bring about oxidation by being reduced and gaining electrons.

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Answer:

In humans, up to ten different proteins can be traced to a single gene. Proteome: It is now estimated that the human body contains between 80,000 and 400,000 proteins. However, they aren't all produced by all the body's cells at any given time. Cells have different proteomes depending on their cell type.

Explanation:

Proteins are macromolecules that are complex structures made of monomeric units. There are 20,000 - 60,000 different kinds of proteins in the human body.

Proteins have been the large molecules (macromolecules) that are structurally composed of the monomers or the smaller units. They have been composed of amino acids.

The amino acids are produced by the translational process and are linked by the peptide bonds. They are the most essential compound for the cellular and physical activity of the cells in living organisms.

The proteome is used to identify and classify the various proteins that can range from 20,000 - 60,000 in a human body. These proteins are involved in performing the functions in the body.

Therefore, approximately 20,000 - 60,000 proteins are found in the human body.

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Answer:

.5

Explanation:

Answer:

1.5

Explanation:

1.5