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IrinaK [193]
4 years ago
6

Two protons and two neutrons are released as a result of this reaction. mc017-1.jpgRn mc017-2.jpgPo + ? Which particle is releas

ed? one alpha particle two beta particles one alpha and one beta particle one high-energy photon
Chemistry
2 answers:
Dovator [93]4 years ago
5 0
The nuclear reaction occurring is known as alpha-decay, and during this process, an alpha particle is released from a heavy radioactive nucleus to form a lighter more stable nucleus. The alpha particle is equivalent to a helium nucleus, which means it contains 2 protons and two neutrons (net charge of +2)
The decay equation is:
Rn → Po + α
Sedaia [141]4 years ago
4 0

Answer:

A: (ONE ALPHA PARTICLE)

Explanation:

on edg

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Which sample of matter represents a mixture?
ollegr [7]

A mixture is a new substance that you get when you mix two or more different substances together and blend them so you either create a homogeneous mixture or a heterogeneous one. In your case (assuming that your choices are aqueous ammonia, liquid mercury, gaseous ethane, solid iodine), the correct answer is aqueous ammonia, given that it is a mixture of ammonia and water, whereas the other options are not mixtures because they only consist of one element.

Explanation:


In chemistry, a combination forms once 2 or additional substances are combined such every substance retains its own chemical identity. Chemical bonds between the elements area unit neither broken nor fashioned. Note that albeit the chemical properties of the elements haven't modified, a combination could exhibit new physical properties, like boiling purpose and freezing point. For instance, combining along water and alcohol produces a combination that features a higher boiling purpose and lower freezing point than alcohol.

4 0
4 years ago
Read 2 more answers
Which factor most directly affects potential energy?
Georgia [21]

Answer:

Mass, gravitational force and height

Explanation:

Potential energy of body is the energy at rest in a body and it depends on the mass, acceleration due to gravity and height of a body;

  Potential energy = mass x gravity x height  = mgh

The more the mass, gravity and height of a body, the higher the potential energy a body will posses. This is why a stone at a height has more potential energy than one on the ground.

6 0
4 years ago
The air bags in cars are inflated when a collision triggers the explosive, highly exothermic decomposition of sodium azide (NaN3
Oksanka [162]

Answer : The mass of NaN_3 required is, 166.4 grams.

Explanation :

First we have to calculate the moles of nitrogen gas.

Using ideal gas equation:

PV=nRT

where,

P = Pressure of N_2 gas = 1.00 atm

V = Volume of N_2 gas = 113 L

n = number of moles N_2 = ?

R = Gas constant = 0.0821L.atm/mol.K

T = Temperature of N_2 gas = 85^oC=273+85=358K

Putting values in above equation, we get:

1.00atm\times 113L=n\times (0.0821L.atm/mol.K)\times 358K

n=3.84mol

Now we have to calculate the moles of sodium azide.

The balanced chemical reaction is,

2NaN_3(s)\rightarrow 2Na(s)+3N_2(g)

From the balanced reaction we conclude that

As, 3 mole of N_2 produced from 2 mole of NaN_3

So, 3.84 moles of N_2 produced from \frac{2}{3}\times 3.84=2.56 moles of NaN_3

Now we have to calculate the mass of NaN_3

\text{ Mass of }NaN_3=\text{ Moles of }NaN_3\times \text{ Molar mass of }NaN_3

Molar mass of NaN_3 = 65 g/mole

\text{ Mass of }NaN_3=(2.56moles)\times (65g/mole)=166.4g

Therefore, the mass of NaN_3 required is, 166.4 grams.

3 0
3 years ago
The type of reaction that takes place when one element reacts with a compound to form a new compound and a different element is
Airida [17]
C. single replacement. A single replacement is represented by this formula : AB + C = AC + B
4 0
3 years ago
Read 2 more answers
Una teoría puede estar respaldada por pruebas considerables.?????
AlladinOne [14]
Respuesta:

Yes.

Explicación:


Las teorías se pueden mejorar o modificar a medida que se recopila más información para que la precisión de la predicción sea mayor con el tiempo.
6 0
3 years ago
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