Answer:
Hydrogen + Helium
Explanation:
No reaction occurs
Identify the gas law that applies to the following scenario: A 36.5 liter balloon holding 2.9 moles of carbon dioxide leaks. If we are able to determine that 1.2
moles of carbon dioxide escaped before the container could be sealed, what is the new volume of the container?
O Boyle's Law
O Charles' Law
O Gay-Lussac's Law
Avogadro's Law
Answer:
Avogadro's Law; 15.1L
Explanation:
Boyle's Law- Pressure and volume are inversely related, so an increase in pressure= decrease in volume. We see this in the equation P1V1=P2V2.
Charle's Law- Gas expands/increases in volume when temperature increases, so they are proportional. We see this in the formula [tex]\frac{V1}{T1} = \frac{V2}{T2}[/tex].
Guy-Lussac's Law- As temperature increases, pressure increases, so they are proportional. We see this in the formula [tex]\frac{P1}{T1} = \frac{P2}{T2}[/tex].
Avogadro's Law- There are equal amount of volume have an equal amount of moles, so they are proportional. We see this in the formula [tex]\frac{V1}{n1} = \frac{V2}{n2}[/tex].
Plugging in the values based on Avogadro's Law, we'll have:
[tex]\frac{36.5}{2.9} = \frac{V2}{1.2}[/tex]
12.6 = [tex]\frac{V2}{1.2}[/tex]
12.6 x 1.2 = V2
15.1L =V2
I don't know how to get the volume and it is 10 point removed for it wrong so can someone help me
calculate the molar mass for BaSO4
Answer:
233.38 g/mol
Explanation:
you find the molar mass of each element and then add them up.
Convert 1.4 x 1024 molecules of H2O to grams of H20.
Answer:
41.8 g of water.
Explanation:
To solve this, we introduce the concept of mol.
1 mol of anything contains 6.02×10²³ particles.
In this case, we talk about molecules of water.
Molecular weigh is 18 g/mol which indicates that 1 mol of water weighs 18 g.
So let's do the conversion
(18 g of water / 6.02×10²³ 1 mol of molecules) . 1.4×10²⁴ molecules = 41.8 g
What happen if your Adrenal Glands become overprotective of underproductive?
What happen if your Adrenal Glands become overprotective of underproductive?
Answer: if your adrenals becomes overproductive it will lead to a health issue known as CUSHING'S SYNDROME while when they become underproductive it will lead to a health condition known as ADDISON'S DISEASE.
Explanation:
The adrenal glands are divided into two embryologically and functionally distinct parts: the adrenal cortex and adrenal medulla.
The adrenal cortex is part of the hypothalamic - pituitary - adrenal endocrine system. Morphologically, the adult adrenal cortex consists of three layers which include:
--> The outer thin layer: this is also called zona glomerulosa. It secrets only aldosterone.
--> The inner two layers: these comprises of the zona fasciculata and zona reticularis. They both form a functional unit and secrete most of the adrenocortical hormones.
The adrenal medulla is the inner part of the adrenal gland which secrets the adrenaline and noradrenaline hormones.thry take part in sympathetic nervous system.
When the adrenal glands become a OVERPRODUCTIVE, the adrenal cortex is highly affected. This may occur due to hyperstimulation of the adrenal gland by adrenocorticotrophic hormone,either from the pituitary gland or from an ectopic source or due to largely autonomous secretion by an adrenal tumor such as an adenoma or carcinoma. The increased endogenous cortisol production leads to a disorder known as CUSHING'S SYNDROME. The clinical and metabolic features include obesity, hyperglycaemia and hypertension.
Also when the adrenal glands become UNDERPRODUCTIVE, a health condition known as ADDISON'S DISEASE may occur. This is cause any the bilateral destruction of all zones of the adrenal cortex, usually as the result of an autoimmune process or mycotic infections. The resulting decrease in cortisol production may lead to clinical features such as hypotension, hypoglycemia, nausea and vomiting.
Type of reaction in NaOH + KNO3 → NaNO3 + KOH
Answer:
It is a combustion reaction
Explanation:
How many joules are required to change 40 grams of water to steam at the boiling point?
Answer:
2260 J
Explanation:
For water at its boiling point of 100 ºC, the heat of vaporization is 2260 J g-1. This means that to convert 1 g of water at 100 ºC to 1 g of steam at 100 ºC, 2260 J of heat must be absorbed by the water.
Para que sirven los modelos atómicos
Answer:
mi no speak espanol
Explanation:
Consider the diagram above. If you placed a rubber duck on the
surface of the water in the middle of the pot, in which direction
would you expect the duck to move?
Answer:
But there is nothing above
A gas has a pressure of 1.00 atm at 25 degrees Celsius. What is the pressure of the gas at 323 degrees Celsius.
Please help thanks.
Answer:
The pressure of the gas at 323 degrees Celsius is 2 atm.
Explanation:
Gay-Lussac's law indicates that, as long as the volume of the container containing the gas is constant, as the temperature increases, the gas molecules move faster. Then the number of collisions with the walls increases, that is, the pressure increases. That is, the pressure of the gas is directly proportional to its temperature.
In short, when there is a constant volume, as the temperature increases, the pressure of the gas increases. And when the temperature is decreased, the pressure of the gas decreases.
Gay-Lussac's law can be expressed mathematically as follows:
[tex]\frac{P}{T} =k[/tex]
Where P = pressure, T = temperature, K = Constant
Having two different states, an initial state 1 and a final state 2, it is satisfied:
[tex]\frac{P1}{T1} =\frac{P2}{T2}[/tex]
In this case:
P1= 1 atmT1= 25 C= 298 K (being 0 C= 273 K)P2= ?T2= 323 C= 596 KReplacing:
[tex]\frac{1 atm}{298 K} =\frac{P2}{596 K}[/tex]
Solving:
[tex]P2=\frac{1 atm}{298 K}*596 K[/tex]
P2= 2 atm
The pressure of the gas at 323 degrees Celsius is 2 atm.
What do you think? Is our current understanding ofthe Universe backed up with facts? Is it a good theory
Answer:
Yes
Explanation:
The expansion of the universe is the increase in distance between any two given gravitationally unbound parts of the observable universe with time. It is an intrinsic expansion whereby the scale of space itself changes. The universe does not expand "into" anything and does not require space to exist "outside" it.
How many moles contain 9.75x10^20 molecules of carbonic acid?
Answer:
1 mole of carbonic acid=6.023×10^23 molecules
now
9.74×10^20molecules=
1/(6.023×10^23 molecules)×9.74×10^20molecules
=1.617×10^-3 mole
is your answer.
Cuando se trata Ca3P2 con agua, los productos son Ca(OH)2 y PH3. Calcular el peso máximo obtenido al reaccionar 2 g de Ca3P2 con 1 g de H2O.
Answer:
0.629 gramos de PH3 es la máxima de cantidad que puede ser producida.
Explanation:
¡Hola!
En este caso, dado que tenemos la siguiente reacción química, la cual se puede balancear directamente:
[tex]Ca_3P_2+6H_2O\rightarrow 3Ca(OH)_2+2PH_3[/tex]
Podemos calcular la masa máxima de cualquier producto, digamos PH3, al comparar la masa de este, que 2 g the Ca3P2 y 1 g de H2O producen por separado y de acuerdo a la estequiometría:
[tex]2gCa_3P_2 *\frac{1molCa_3P_2 }{182.18gCa_3P_2 }*\frac{2molPH_3}{1molCa_3P_2 } *\frac{34gPH_3}{1molPH_3 } =0.747gPH_3\\\\1gH_2O *\frac{1molH_2O }{18.02gH_2O}*\frac{2molPH_3}{6molH_2O} *\frac{34gPH_3}{1molPH_3 } =0.629gPH_3[/tex]
De este modo, infermos que solamente 0.629 gramos the PH3 pueden ser obtenidos al ser el agua el reactivo límite.
¡Saludos!
who wants points from me?
Answer:
ok I want
have a good day better than yesterday
thanks a lot for your points
me too ahahahahahahahaha
What is the ph of H2?
Answer:
Hydrogen ion concentration is more conveniently expressed as pH, which is the logarithm of the reciprocal of the hydrogen ion concentration in gram moles per liter. Thus, in a neutral solution the hydrogen ion (H+) and the hydroxyl ion (OH−) concentrations are equal, and each is equal to 10−7. A pH of 7 is neutral
The initial amount of low-quality energy available from an energy resource is called its net energy.
Answer:
La cantidad de energía disponible de una fuente de energía determinada se denomina recurso energético. La escasez de recursos energéticos (petróleo, carbón y madera) en algunas de las fuentes de energía más utilizadas plantear necesidad de usar otras fuentes investigar el modo más rentable de emplearlas
Explanation:
Answer:
false
Explanation:
its the amount of high-quality energy available from a given quantity of an energy resource minus the high-quality energy needed to make the energy available.
A gas is in a container with an initial volume of 2.50L, initial pressure of 1.34 atm, and initial temperature of 308 K. What would be the pressure if the gas was heated to 373 K and the volume decreased to 1.90 L? *Hint use the Combined Gas Law.
Answer: The pressure is 2.14 atm if the gas was heated to 373 K and the volume decreased to 1.90 L.
Explanation:
Given: [tex]V_{1} = 2.50 L[/tex], [tex]P_{1} = 1.34 atm[/tex], [tex]T_{1} = 308 K[/tex]
[tex]P_{2} = ?[/tex] , [tex]V_{2} = 1.90 L[/tex], [tex]T_{1} = 373 K[/tex]
Formula used to calculate the final pressure is as follows.
[tex]\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}[/tex]
Substitute the values into above formula as follows.
[tex]\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}\\\frac{1.34 atm \times 2.50 L}{308 K} = \frac{P_{2} \times 1.90 L}{373 K}\\P_{2} = \frac{1.34 atm \times 2.50 L \times 373}{308 K \times 1.90 L}\\= 2.14 atm[/tex]
Thus, we can conclude that the pressure is 2.14 atm if the gas was heated to 373 K and the volume decreased to 1.90 L.
How do rock transformations on Venus and Earth indicate the planetary similarities between the two planets?
Answer:
Both the Earth and Venus show the appearance of igneous rocks due to the cooling of the magma.
Explanation:
As we know, ignea rock is the first step in the transformation of rocks. This rock is formed by the overflow of terrestrial magma which, upon cooling, turns into ignea rock, which will undergo metamorphism and transform into metamorphic rock, which will continue to undergo metamorphosis until it becomes the other rocks that complete the rock cycle. This is a terrestrial process that can be found on Venus, which also presents the cooling of magma in the formation of ignea rock, which will undergo metamorphism, transforming into other rocks, the way it occurs on Earth.
which of the following elements has the highest electronegativity?
A) oxygen
B) nitrogen
C) carbon
D) boron
Answer:
option d) is the correct answer
List three strategies for answering questions that you don't know anything
about?
Help please I'll give brainless no links, please I've been asking this question from this morning, and no one answer
The reaction a(g)⇌b(g) has an equilibrium constant of 5.8 and under certain conditions has q = 336. part a what can you conclude about the sign of δg∘rxn and δgrxn for this reaction under these conditions?
Answer:
The answer is "As [tex]Q=336[/tex], at high-temperature [tex]\Delta G_{rxn}>0[/tex] and When[tex]K>1,[/tex][tex]\Delta G^{\circ}_{rxn}>0[/tex]."
Explanation:
The equation for the reaction is:
[tex]A(g) \leftrightharpoons B(g)[/tex]
[tex]K=5.8\\\\Q=336[/tex]
At equilibrium,
[tex]\Delta G^{\circ}_{rxn}>0[/tex][tex]=-RT \ln \ K[/tex]
When k=5.8(>1), the value of [tex]\ln k[/tex] would be positive
So, [tex]\Delta G^{\circ}_{rxn}[/tex] is negative (< 0)
So if K > l, [tex]\Delta G^{\circ}_{rxn}<0[/tex]
If the reaction is not in equilibrium so the equation is :
[tex]\Delta G_{rxn}>0[/tex]=[tex]\Delta G^{\circ}_{rxn}[/tex][tex]+RT \ln Q[/tex]
Substituting the expression:
[tex]\Delta G_{rxn}>0[/tex][tex]= (-RT \ln K) + RT \ln Q[/tex]
[tex]= RT(\ln Q- \ln K)\\= RT(\ln (336)-\ln (5.8))\\= RT(4.06)[/tex]
It is the positive value for all temperatures.
So, As Q = 336, at the high temperature [tex]\Delta G_{rxn}>0[/tex].
Justify the
the importance of solar enengy as on
alternative source of energy in Nepal
Answer:
Nepal aims to achieve universal access to clean, reliable and affordable renewable energy solutions by 2030. It is expected to reduce dependence on traditional and imported energy by increasing access to renewable energy. The use of solar energy is more reliable than traditional electricity in Nepal.
According to law of conservation of energy,solar energy is a renewable source of energy as it's heat can be converted to other forms of energy and can be conserved and is being looked as an alternative in Nepal.
What is law of conservation of energy?According to law of conservation of energy, it is evident that energy is neither created nor destroyed rather it is restored at the end of a chemical reaction .
Law of conservation of mass and energy are related as mass and energy are directly proportional which is indicated by the equation E=mc².Concept of conservation of mass is widely used in field of chemistry, fluid dynamics.
Law needs to be modified in accordance with laws of quantum mechanics under the principle of mass and energy equivalence.This law was proposed by Julius Robert Mayer in the year 1842.
Learn more about law of conservation of energy,here:
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If 4.04g of h2 gas react with oxygen gas to create 36.36g of water, how many grams of oxygen reacted?
Answer:
gO₂ = 32.32 g
Explanation:
In this case, let's write the general equation:
2H₂ + O₂ -------> 2H₂O
In this case, we can use the 1° law, which is mass conservation. If the product has 36.36 g of water, then in the reactants we should have the same 36.36 g.
According to this, we already have 4.04 of hydrogen, then the remaining to reach the 36.36 g would be:
gO₂ = 36.36 - 4.04
gO₂ = 32.32 gHope this helps
An _______________________ (device that converts electrical energy into kinetic energy) runs by using the magnetic field formed by a ______________________________ formed into a loop.
Answer:
A motor (device that converts electrical energy into kinetic energy) runs by using the magnetic field formed by a flowing current formed into a loop.
What equation is used to calculate atomic mass?
WARNING!!!! NO LINKS OR YOU WILL BE REPORTED!!!!
Answer:
Average atomic mass = f1M1 + f2M2 +… + fnMn where f is the fraction representing the natural abundance of the isotope and M is the mass number (weight) of the isotope. The average atomic mass of an element can be found on the periodic table, typically under the elemental symbol.
What is the net ionic equation for ammonium carbonate and barium nitrate?
SOMEONE HELP PLEASE !!
Which is not an electrolyte
1. Ionic salt
2. Acid
3. Base
4. Water
PLEASE HELP ME
salt is not because it gets u dehydrated
* Describe the structure and behavior of the inner Earth
Answer:
The interior of the Earth, like that of the other terrestrial planets, is chemically divided into layers. The Earth has an outer silicate solid crust, a highly viscous mantle, a liquid outer core that is much less viscous than the mantle, and a solid inner core.
*
14. An AREA which drains into a common river system.
watershed
tributary
drainage divide
riparian zone
A graph of gas pressure versus the number of particles in a container is a straight line. Which other relationship will have a similar graph? volume versus pressure, because they are also directly proportional volume versus temperature, because they are also directly proportional volume versus pressure, because they are also inversely proportional volume versus temperature, because they are also inversely proportional
Answer:
b
Explanation:
gitcy is good for your spleen
The other relationship that will have a similar graph is volume versus temperature, because they are also directly proportional according to Charles's Law.
What is Charles's Law?Charles's Law is a gas law that states that the volume of a fixed mass of gas at a constant pressure is directly proportional to its absolute temperature.
This means that as the temperature of a gas increases, the volume of the gas will also increase proportionally, and as the temperature of a gas decreases, the volume of the gas will decrease proportionally.
Therefore, if a graph of gas pressure versus the number of particles in a container is a straight line, a graph of volume versus temperature will have a similar shape and be directly proportional, because they are both affected by changes in temperature.
Learn more about Charles's Law at:
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