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MaRussiya [10]
2 years ago
15

Which sentences describe alpha particles? Check all that apply 1. Alpha particles consist of two protons and two neutrons 2. Alp

ha particles consist of a negatively charged electron emitted by a nucleus 3. Alpha particles are produced during alpha decay 4. Alpha particles are produced during beta decay 5. Alpha particles release energy.
answers: 1,3,5 on ed-genuity ...good luck!!
Chemistry
2 answers:
-BARSIC- [3]2 years ago
5 0

<u>Answer:</u> The correct answer are Option 1, Option 3 and Option 5.

<u>Explanation:</u>

Alpha particles are released when a nucleus undergoes alpha decay process. The alpha particle released carries a charge of +2 units and has a mass of 4 units.

The charge of this particle will determine the number of protons present in this particle which are 2 and the mass will determine the number of neutrons in this particle.

Number of neutrons = Mass number - Number of protons

Number of neutrons = 4 - 2 = 2

This particle also releases energy with itself.

Hence, the correct answer are Option 1, Option 3 and Option 5.

Masja [62]2 years ago
4 0

thanks for the answers ッ. (btw they’re on the bottom of the question if anyone doesn’t see it.

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List the following compounds in decreasing electronegativity difference. cl2 hcl nacl
Mkey [24]
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Thus, Electronegativity difference  in Cl_{2} = 3.2 -3.2 = 0
Electronegativity difference  in NaCl = 3.2-0.9 = 2.3
Similarly, Electronegativity difference  in HCl = 3.2 - 2.1 = 1.1

Thus, among the listed molecules following is the decreasing order of electronegativity difference: NaCl> HCl > Cl_{2}
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2 years ago
Barium sulfate, BaSO4, is a white crystalline solid that is insoluble in water. It is used by doctors to diagnose problems with
pshichka [43]

Answer:2

Explanation:

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2 years ago
Which indicator is blue in a solution that has a pH of 5.6?
m_a_m_a [10]
Bromcresol green is the indicator that is blue in a solution that has a Ph of 5.6.
7 0
2 years ago
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The laser in a 3D printer uses light with a frequency of 3.844 × 1014 Hz. Calculate the wavelength of this light in nm. Show all
Natali5045456 [20]

Answer:

The wavelength of this light is 780.4 nm.

Explanation:

Given that,

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We need to find the wavelength of this light.

We know that,

c=f\lambda

Where

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So,

\lambda=\dfrac{c}{f}\\\\\lambda=\dfrac{3\times 10^8}{3.844 \times 10^{14}}\\\\=7.804\times 10^{-7}\ m\\\\=780.4\ nm

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5 0
2 years ago
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belka [17]

Answer : The molarity of solution is, 1.00 M

Explanation : Given,

Moles of KNO_3 = 0.500 mol

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\text{Molarity}=\frac{0.500mol}{0.500L}=1.00mole/L=1.00M

Therefore, the molarity of solution is, 1.00 M

7 0
2 years ago
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