What of reaction is Zn + H2S =ZnS + H2

Answers

Answer 1
It’s a single replacement because it has an element + a compound on the left side that form a new compound + a new element

Related Questions

I don't know how to get the volume and it is 10 point removed for it wrong so can someone help me

Answers

16.91


Add all the values for the volume added then divide by 3 because there are three values

different between:Electrovalent bond and covalent bond​

Answers

Explanation:

electrovalent bond covers single bond.

Covalent bond covers double or more bonds.

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

Answers

1. Ask clarifying question
2. Provide with the information you know
3. Repeat the question
I’m not sure if this is what ur teacher ment by stratégies but this is what I know

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

Answers

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.

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Justify the
the importance of solar enengy as on
alternative source of energy in Nepal​

Answers

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.

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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?

Answers

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 g

Hope this helps

Type of reaction in NaOH + KNO3 → NaNO3 + KOH

Answers

Answer:

It is a combustion reaction

Explanation:

What are some facts about Radon?????

Answers

Answer:

Explanation:

Radon is radioactive.

Radon is a naturally occurring radioactive gas.  

Radon causes cancer.

Breathing radon can increase your risk of developing lung cancer.  

No immediate symptoms.  

You must test for radon.  

Radon is present indoors and outdoors.  

Radon can build up in any building.

Answer: No but I have a three elmos dolls in my basement

Explanation:

Brainliest grind of 2014i-

Answers

Answer:

IM just too pogchamp

Explanation:

How long does it take for fruit flies to develop from embryos to adults?

Answers

four to five weeks, depending on the conditions

SOMEONE HELP PLEASE !!
Which is not an electrolyte
1. Ionic salt
2. Acid
3. Base
4. Water
PLEASE HELP ME

Answers

salt is not because it gets u dehydrated

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.

Answers

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 K

Replacing:

[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.

*
14. An AREA which drains into a common river system.
watershed
tributary
drainage divide
riparian zone

Answers

Watershed
A watershed is an entire river system of an area drained by a river and its tributaries

What do electrochemical cells use to generate electricity?

Answers

Answer:

flow of electrons

Explanation:

took the quiz

Choose the mixed number that is equivalent to $ 5.08.

5 8/100

5 80/100

80/100

8/100​

Answers

Answer:

a. 5 8/100 is equivalent to $ 5.08.

Explanation:

i hope this helps :)

The answer is a is the correct answer

What is the ph of H2?

Answers

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

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Answers

Answer:

Full answer in explanation

Explanation:

High Tide - when tides are at their highest elevationLow Tide - when tides are at their lowest elevationSpring Tide - when tides experience the greatest range between high and low; occur at New and Full MoonsNeap Tide - when tides experience the least range between high and low; occur at 1st and 3rd Quarter MoonsGravitational Pull - the invisible force that exists between all objects that have mass. The greater the mass, the greater the effect of the forceTide - the daily change in ocean levels due to the gravitational force of the moon and the sun exerted on Earth

Hope this helps!

What do you think? Is our current understanding ofthe Universe backed up with facts? Is it a good theory

Answers

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.

Convert 1.4 x 1024 molecules of H2O to grams of H20.

Answers

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

An _______________________ (device that converts electrical energy into kinetic energy) runs by using the magnetic field formed by a ______________________________ formed into a loop.

Answers

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.

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.

Answers

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!

calculate the molar mass for BaSO4 ​

Answers

Answer:

233.38 g/mol

Explanation:

you find the molar mass of each element and then add them up.

How do rock transformations on Venus and Earth indicate the planetary similarities between the two planets?

Answers

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.

25 Which factor causes global wind patterns?
A changes in the distance between Earth and the Moon
B unequal heating of Earth's surface by the Sun
C daily changes in the tilt of Earth's axis
D rapid rotation of the Sun on its axis

Answers

Answer:

B

Explanation:

B. unequal heating of Earths surface by the sun

an example of no chemical reaction occurring
in gizmos ​

Answers

Answer:

Hydrogen + Helium

Explanation:

No reaction occurs

How many moles of ammonia gas are produced in the following reaction if 25 moles of nitrogen gas reacts with hydrogen?



Extra Content

N2(g) + 3H2(g). → 2NH3(g)

1 mole of nitrogen gas reacts with 3 moles of hydrogen gas to produce 2 moles of ammonia gas



A.

100 moles

B.

25 moles

C.

50 moles

D.

75 moles

Answers

Answer:

I think b

Explanation:

50 moles of ammonia gas are produced in the following reaction if 25 moles of nitrogen gas reacts with hydrogen. Therefore, the correct option is option C.

What is moles?

In the National System of Units, the mole represents the unit of substance amount. However many elementary units of a particular substance are present inside an object as well as sample is determined by the quantity of that material. There are precisely  6.022×10²³ elementary entities in a mole.

An elementary object may include an atom, any molecule, and ion, an ion pair, or perhaps a subatomic particle like an electron depending upon what the substance is. 

N[tex]_2[/tex](g) + 3H[tex]_2[/tex](g). → 2NH[tex]_3[/tex](g)

moles of nitrogen = 25 moles

the  mole ratio between nitrogen and ammonia is 1:2

moles of nitrogen = 25×2=50 moles

Therefore, the correct option is option C.

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How can you know if something has energy?

(Can you explain it in a sentence?)

Answers

It’s pretty simple actually anything that moves has energy say you threw a ball u transferd your kinetic energy into that ball it’s really simple anything that moves has energy

who wants points from me?​

Answers

Answer:

ok I want

have a good day better than yesterday

thanks a lot for your points

me too ahahahahahahahaha

2. A sample of helium gas has a volume of 200.0 mL at 0.960 atm. What pressure, in atmospheres, is needed to reduce the volume at constant tem-perature to 50.0 mL?

Answers

Answer:

3.840 atm

Explanation:

We use Boyle's law, which relates the pressure (P) and the volume (V) of a gas at a constant temperature. The change from initial P and V (P₁ and V₁) to final P and V (P₂ and V₂) is expressed as:

P₁V₁ = P₂V₂

We have the following data:

P₁= 0.960 atm

V₁= 200.0 mL

V₂ = 50.0 mL

Thus, we introduce the data in the equation and calculate the final pressure P₂:

P₂ = P₁V₁/V₂= (0.960 atm x 200.0 mL)/50.0 mL = 3.840 atm

Therefore, a pressure of 3.840 atm is needed to reduce the volume of the gas from 200.0 mL to 50.0 mL.

How many moles contain 9.75x10^20 molecules of carbonic acid?

Answers

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.

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