Only smart people can answer 50points

Explanation:

Aluminum happens to have 3 extra electron's. luckily, every phosphorus atom is looking to gain 3 electrons. it is a perfect match!!!

Answer:

The partial pressure of gas B is 0.52atm

Explanation:

Pt = Pa + Pb

Pb = Pt - Pa

Pb = 1.20 atm - 0.68 atm

Pb = 0.52 atm

N2(g) + 3H2(g) → 2NH3(g)

20ml of nitrogen

the volume of produced NH3

So, 1 volume of nitrogen gas reacts with 3 volumes of hydrogen gas to produce 2 volumes of ammonia gas.

For this gaseous reaction in which all the reactants and products are gases we could write a chemical equation:

1 volume N2(g) + 3 volumes H2(g) → 2 volumes NH3(g)

1 volume of N2 is 20 ml so 2 volume of NH3 will be 40 ml .

Then , 20 ml N2 will give 40 ml of NH3

= 40 ml

The various steps of how to prepare a specific volume of a dilute solution from a concentrated stock solution is described below.

A stock solution is the solution that contains the standard concentration of a chemical compound.

A diluted solution is the solution shoes concentration has been decrease through addition of a solvent like water.

To prepare a dilute solution from a stock solution the following is done:

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For a typical human height of 2m, horizon distance on earth and mars is 5km & 3.7km respectively.

Horizontal distance will be calculated as:

D = √h² + 2hr, where

h = height of the human = 2m

r = radius

D = √(2)² + 2(2)6378000

D = 2√6378001 = 5051m = 5km

D = √(2)² + 2(2)3340000

D = 2√3340001 = 3674m = 3.7km

Hence required horizon distance on earth and mars is 5km & 3.7km respectively.

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B. Newtons second law! Have a great day!

Answer:

Explanation:

Number of Nitrogen atoms : 1 atom

Number of Hydrogen atoms : 1(4) + 1 = 4 + 1 = 5 atoms

Number of Oxygen atoms : 1 atom

Total atoms

Calculate atoms of each element

Total atoms

Answer: a communicable disease

Explanation: key word was transmitted and it was transmitted from a INFECTED living thing and then transmitted to another living thing

Answer

to do homework or not

Explanation:

you can figure it out in one second

Answer:

To do homework or not

Explanation: You should always do homework or else you get in big trouble

The pressure of hydrogen needed to maintain a H₂ concentration of 0.42 M is 518.5 atm

This states that the solubility / concentration of a gas in liquids at constant temperature is proportional to its pressure. Mathematically, it can be expressed as

S = KP

Where

P = S / K

P = 0.42 / 8.1×10¯⁴

P = 518.5 atm

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Answer:

Non-scientists aren't exposed to the information that scientists have in their field of study. Scientists also have their research based on facts, while non-scientists can be biased on their beliefs and chose to ignore data and logic.

Answer:

the escape velocity

Explanation:

To do this, your rock has to go very fast – more than 11 kilometers per second. This velocity is called the escape velocity, the speed an object must achieve in order to overcome the gravitational attraction of a celestial body (be it a planet, a star, or a galaxy) and escape into space

found it online, lol better then nothing

Answer:

Co2

Explanation:

The coefficient 2 is multiplied on the invisible 1 (Co1) so it becomes CO2

Or

2co represents 2 molecule of carbon monoxide

Answer:

Clalcopyrite is the most important and major source of copper material. It is widely spread copper-iron sulfide minerals with chemical formula (CuFeS^2)

The most common natural ore of copper is chalcopyrite with the chemical formula CuFeS₂.

Chemical  formula is a way of representing the number of atoms present in a compound or molecule.It is written with the help of symbols  of elements. It also makes use of brackets and subscripts.

Subscripts are used to denote number of atoms of each element and brackets indicate presence of group of atoms. Chemical formula does not contain words. Chemical formula in the simplest form  is called empirical formula.

It is not the same as structural formula and does not have any information regarding structure.It does not provide any information regarding structure of molecule as obtained in structural formula.

There are four types of chemical formula:

1)empirical formula

2) structural formula

3)condensed formula

4)molecular formula

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1cal=4.184J

Hence

Answer:

The integrated rate laws for zero-, first-, and second-order reaction may be arranged such that they resemble the equation for a straight line, y = mx + b. Part A The reactant concentration in a zero-order reaction was 0.100 M after 100 s and 1.50x10-2 M after 360 s. What is the rate constant for this reaction? Order 0 1 | 2 Integrated Rate Law Graph [A] =- kt +[A]o [A] vs. t In[A] = -kt + In[A]o In[A] vs. t = kt + Á A vs. t Slope -k -k k Express your answer with the appropriate units. Indicate the multiplication of units, as necessary, explicitly either with a multiplication dot or a dash. ► View Available Hint(s) koth = 3.27x10-4 M S Submi Previous Answers Correct Important: If you use this answer in later parts, use the full unrounded value in your calculations.

Explanation:

The molarity of the methanol solution produced at the given number of moles and volume is 0.75 M.

The molarity of the methanol is determined from the ratio of the number of moles of the methanol to the volume of the methanol.

The molarity of the methanol is calculated as follows;

Molarity = moles/volume

moles = 0.2 L x 3 M = 0.6 mole

Molarity = 0.6 mol/0.8 L

Molarity = 0.75 M

Thus, the molarity of the methanol solution produced at the given number of moles and volume is 0.75 M.

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The Correct pair of Element and it's symbol ~

No, a pressure cannot change shift the equilibrium position in every reversible reaction.

If the pressure increases, the position of equilibrium shift in the direction with the small amount of molecules. This decreases the effect of the change. When the reaction will shift towards the products that means the reaction favor forward.

From the above conclusion we can say that a pressure cannot change the shift of equilibrium position in every reversible reaction.

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Diffusion is the net movement of anything generally from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in Gibbs free energy or chemical potential.

Answer: Can you repost the answer it will not let post my answer

Explanation: pleaee

Answer:

a) 1

b) from a common ancestor

Explanation:

pls give brainlyist

Explanation:

i think time. .........

Changes in time do not shift the equilibrium of a chemical reaction.

Chemical equilibrium is the state where no net change in the quantity of reactants as well as products occurs during a reversible chemical reaction. A reversible chemical reaction occurs when the products react with the original reactants as soon as they are generated.

A chemical reaction occurs when one or more compounds, known as reactants, are changed into one or more distinct substances, known as products. Chemical elements or compounds are examples of substances. A chemical reaction organizes the constituent atoms of both the reactants to produce various products.

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The effects of each of the following on the equilibrium system in the question are as follows :

A) Addition of Cl₂ ; equilibrium shifts to reverse

B) Removal of HCl ; equilibrium shifts to the reverse

C) Increased pressure ; neither

D) Decresed temperture ; neither

E) Removal of H₂ ; Forward

F) Decreased pressure : neither

G) Addition of catalyst : Forward

H) Increased temperature : Forward

I) Decresed system volume : Neither

The change in volume and pressure in an equilbrium system with equal number of gaseous molecules of reactants and products will not have an effect on the direction of shift of the equilibrium system. But the change in temperature, increase or decrease of reactants and products  will have an effect on the direction of the equilibrium shift of the system.

Hence we can conclude that the effects of the following on the equilibrium system is as listed above.

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Answer:

If one increases the temperature of a gas in a sealed, rigid container, the density of gas will not change.

The key to this answer lays in the ideal gas equation:

        pV = nRT

Thus, one can write:  n = (m)/(M)where m is the mass of the gas and M is the molar mass of a gas.  

         pV = (m)/(M) RT

Hence, if one decides to divide the entire equation with volume, V, one may write:

        p = (m)/(VM) RT

ρ = (m)/(V), where ρ is density

        p = (ρ)/(M) RT

If one increases the temperature, in order to keep balance, the pressure will be increased, also.  Container is rigid, so that means the volume is constant.

However, this will not affect the density because there is no difference in volume (V = const.) or the amount of gas (n = const).

If one had a container with a piston, yet, constant pressure, the change of the temperature will impact the density.  

Explanation:

Answer:

Reducingagent

Explanation:

Hope this helps you :)

Pls mark brainliest :P

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Tori

Answer:

it only has slight surface elevation differences

Explanation:

What makes the Earth habitable? It is the right distance from the Sun, it is protected from harmful solar radiation by its magnetic field, it is kept warm by an insulating atmosphere, and it has the right chemical ingredients for life, including water and carbon.

The United Nations Population Fund designates today in history as the approximate day on which the world population reached six billion.  

:)

The volume of the gas is 5.32 cm³.

To calculate the volume of the gas, we use Charles' law.

Charles' law states that at constant pressure, the volume of a fixed mass of gas is directly proportional to its absolute temperature. This can be expressed mathematically as

Formula:

Where:

Make V' the subject of the equation.

From the question,

Given:

Substitute these values into equation 2

Hence, the volume of the gas is 5.32 cm³.

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