A 5.0 mole sample of gas has 54 mmHg of pressure at 273K. What is the volume of the gas?


(Round your answer to the correct number of significant figures)

Answer:

B

Explanation:

(Usually give an explanation, but doing an exam, so just trust)

Answer:

vocla cords

Explanation:

Answer:

The answer should be, 0.01

Explanation:

0.01 = moles of NaOH

[tex] \huge\boxed{ \boxed{\boxed{ \boxed{\mathcal{Answer ࿐ }}}}}[/tex]

[tex] \mathrm{1 \: mole \: of \: NaOH = 40 \: g }[/tex]

[tex] \mathrm{1g = \dfrac{1}{40} \: moles \: of \: NaOH}[/tex]

[tex] \mathrm{50g = \dfrac{1}{40} \times 50}[/tex]

[tex] \mathrm{1.25 \: moles \: of \: \: NaOH}[/tex]

_____________________________

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Answer:

here's the answer hope it helps

Answer:

(A) Heat energy

Explanation:

Temperature can be defined as a measure of the degree of coldness or hotness of a physical object. It is measured with a thermometer and its units are Celsius (°C), Kelvin (K) and Fahrenheit (°F).

Conduction involves the transfer of electric charge or thermal energy due to the movement of particles. When the conduction relates to electric charge, it is known as electrical conduction while when it relates to thermal energy, it is known as heat conduction.

In the process of heat conduction, thermal energy is usually transferred from fast moving particles to slow moving particles during the collision of these particles. Also, thermal energy is typically transferred between objects that has different degrees of temperature and materials (particles) that are directly in contact with each other but differ in their ability to accept or give up electrons.

Any material or object that allow the conduction (transfer) of electric charge or thermal energy is generally referred to as a conductor. Conductors include metal, steel, aluminum, copper, frying pan, pot, spoon etc.

In this scenario, Energy is added to cool water in a beaker. The energy causes the temperature of the temperature to rise. Thus, the term which best describes the energy is heat energy because the object becomes hotter due to an increase in temperature and heat applied.

Answer: NaOH and Ca(OH)2 are bases. HCl and H2SO4 are acids

Explanation:

Answer:

Napoleon Bonaparte

Explanation:

Napoleon Bonaparte was pleased by Berthollet's accomplishments and hired Berthollet in 1798 for his expedition in Egypt, wherein he founded the Institut d'Egypte. He has become the chief scientist at the Institut de France following his homecoming to Paris, and he set up a private laboratories at his country residence in Arcueil on the outskirts of The capital.

Answer:

Do you mean acids?

Due to chemical reaction

Explanation:

Acids are only stored in glass containers because glass containers rarely react with any substance.They dont react with acids and prevent chemical reaction so the acids can be kept. If acids were kept in metal containers it would react .

Answer:

D

Explanation:

Answer:

La respuesta está en la explicación

Explanation:

Los átomos que no poseen ___CARGA____ son conocidos como ____ÁTOMOS____ ____NEUTROS_____. Los átomos que poseen carga se denominan ___IONES____, aquellos con carga positiva de llaman ____PROTONES____ y son aquellos que __PIERDEN__ electrones. Los ______ANIONES____ son aquellos con carga negativa y son los que _____GANAN___ electrones. Para todos los casos el valor de _MASA__ y _NÚMERO ATÓMICO_ permanecen iguales y son los que sacamos de la tabla periódica.

Answer:

alpha < beta < gamma.

Explanation:

Electromagnetic waves is a propagating medium used in all communications device to transmit data (messages) from the device of the sender to the device of the receiver.

An electromagnetic spectrum refers to a range of frequency and wavelength that an electromagnetic wave is distributed or extends. The electromagnetic spectrum comprises of gamma rays, visible light, ultraviolet radiation, x-rays, radio waves, and infrared radiation.

Generally, all radioactive elements are capable of emitting radiation. The three (3) types of nuclear radiation from least damaging to most damaging are; alpha, beta and gamma.

This ultimately implies that, alpha particles have the least damaging (penetrative) ability followed by beta particles and lastly, gamma rays.

Answer:

distance traveled divided by the time it traveled

Explanation

this is just an equation for how to find speed. you can also just use like a meterstick and a stopwatch

Answer:

Both roots are imaginary roots.

Explanation:

Consider these things:

If we try to solve x²+1 = 0, notice that we aren't able to solve the equation in Real Number system because there are no negative outputs for quadratic function.

Remember that quadratic function has range greater or equal to the max-min value.

x-axis plane represents the solutions of that equation. If a graph intersects x-axis plane then it has a solution.

While a graph that doesn't have any intersects on x-plane, it means that the equation for that graph doesn't have real solutions but imaginary solutions.

As you may notice some of parabola graph has one intersect, two intersects or none. One intersect is one solution to the equation — Two intersects are two solutions of the equation and lastly, no intersects mean that no real solutions and remain only imaginary solution.

Answer:

when you have a fever your body is trying to fight off a virus or some other kind of bad Bacteria  

Explanation:

I think this because everyone has at least had a fever when they were sick and when you are sick you are likely to have a fever because your body is fighting off a bad bacteria  

Answer:

0.5 M

Explanation:

Molarity = moles of solute / liters of solution

Answer:

For O: atomic number = 8 # neutrons = 8

For Al: atomic mass = 27, # electrons = 13

Answer:

Surface currents in the ocean are driven by global wind systems that are fueled by energy from the sun. Patterns of surface currents are determined by wind direction, Coriolis forces from the Earth's rotation, and the position of landforms that interact with the currents

Answer:

I believe its compaction

Explanation:

Compaction is how sedimentary rock is formedm

Answer:

Color Change.

Production of an odor.

Change of Temperature.

Evolution of a gas (formation of bubbles)

Precipitate (formation of a solid)

Chicken turning color

Explanation:

I have when i have put a mint in the coke and it exploded and then another is when i dyed my water purple for no reason and when i heat water it start do evaporate or bubble and water turning into ice and when you know  you cook chicken the chicken is pink then when you season the chicken it turn golden brown and when you put milk and cereal together and if you leave it in to long it get soggy.

Answer:

243L of SO2

Explanation:

You'll want to use the Ideal Gas Law for this problem.

First, determine your formula. V=nRT/P

Next, determine your factors.

V = ?

n = 847g

R = 0.0821L.atm/mol.k

T = 313k (40+273)

P = 89.4kPa

Now just plug it in!

847g x 313k / 89.4kPa  x  0.0821L.atm / mol. K

243L of SO2. Hope this helps!

i dont know I hope someone knows soon take care

According to molar concentration, 100 ml of 10 M solution is needed to make 1 liter of a 1 M solution.

Molar concentration is defined as a measure by which concentration of chemical substances present in a solution are determined. It is defined in particular reference to solute concentration in a solution . Most commonly used unit for molar concentration is moles/liter.

The molar concentration depends on change in volume of the solution which is mainly due to thermal expansion. Molar concentration is calculated by the formula, molar concentration=mass/ molar mass ×1/volume of solution in liters.

In terms of moles, it's formula is given as molar concentration= number of moles /volume of solution in liters.In case of two solutions, molar concentration is found out by, M₁V₁=M₂V₂.

On substitution in above formula, V₁=1×1/10=0.1 L=100 ml.

Thus, 100 ml  of a 10 M solution is needed to make 1 liter of a 1 M solution.

Learn more about molar concentration,here:

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Answer:

C. So electrons can flow from one electrode to another

Explanation:

An electrochemical cell is any cell in which electricity is produced by reason of a chemical change.

An electrochemical cell consists of two electrodes, these two electrodes are connected using a wire.

Usually, electrons flow from one electrode to another via this wire thereby enabling the electrochemical processes of oxidation and reduction in the cell to proceed effectively.

Answer: Answer is in the Explanation.

Explanation: At noon the sun is directly above in the sky, the sun's rays are falling on the body making the shadow smaller. While in the evenings and mornings the sun is at a inclined position, so the sun's rays are falling at a inclined position making the body's shadow larger.  

I looked it up on the internet and reworded it as good as I could.

Answer:

The number of animals greatly exceeded the carrying capacity, destroying the food sources and causing the population to decline.  

ALSO

Overpopulation means that there are too many members in the population and that in the end, this will severely hurt their chances for survival.

Explanation:

The statement relates to overpopulation as overpopulation means that there are too many members in the population and that in the end, this will severely hurt their chances for survival.

Overpopulation means an increase in the number of a specific population in a specific place.

Overpopulated species harm other species. It competes for the food and place.

It also decreases the number of species that are its prey.

Thus, the correct option is B.

Learn more about overpopulation

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