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4 years ago

In beta decay, what is emitted?

Chemistry

2 answers:

aliya0001 [1]4 years ago

8 0

Answer:

In beta decay, an electron is emitted.

Explanation:

Beta decay is a type of particle decay in which beta radiation is emitted. That is, an unstable nucleon (proton or neutron) emits a beta particle.

There are two forms of decay or beta particles, β - and β +, which respectively emit an electron or a positron.

That is, beta particles are particles of mass and charge equal to the electron (β-) or positrons, whose mass is equal to the electron but of opposite charge (β +) resulting from the transformation of the neutrons or protons of the nucleus when it is found in an excited state.

Bingel [31]4 years ago

5 0

I'm pretty sure its an electron. I hope this helps! (:

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3 years ago

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A 4.10 −g sample of a mixture of CaO and BaO is placed in a 1.00-L vessel containing CO2 gas at a pressure of 735 torr and a tem

insens350 [35]

Answer:

The mass % of CaO is 9.37%%

Explanation:

Step 1: Data given

Mass of the mixture = 4.10 grams

Volume of the vessel = 1.00 L

The vessel contains CO2 with a pressure of 735 torr and temperature = 26 °C

The pressure of the remaining CO2 is 155 torr

Step 2: The balanced equation

CaO/BaO + CO2 → CaCO3 /BaCO3

Step 3: Calculate moles CO2 (via ideal gas law)

CO2 is the only gas, this means the drop in the pressure is caused by CO2

Δp = 735 torr - 155 torr = 580 torr

580 torr = 0.763 atm

n = PV/RT = (0.763atm)(1.00L) / (0.08206 L*atm/K*mol)(299) = 0.0391 moles CO2 initial

moles reacted = 0.0311 moles CO2

Step 4: Calculate mass of CaO and BaO

Let's suppose x = mass of CaO. Then mass of BaO = 4.10-x.

In the balanced equation, we notice the mole ratio of CaO/BaO with CO2 is 1:1. This means the number of moles CaO + moles BaO = Number of moles CO2

moles CaO + moles BaO = moles CO2

x/56.08 + (4.10-x)/153.33 = 0.0311

56.08 (x/56.08 + (4.10-x)/153.33) = (56.08)(0.0311)

x + (0.366)(4.10-x) = 1.744

x + 1.5006 - 0.366x = 1.744

0.634x = 0.2434

x = 0.384g CaO

4.1-x = g BaO = 3.716 grams

%CaO = (0.384 g / 4.10 g) x 100 = 9.366% ≈ 9.37

The mass % of CaO is 9.37%

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4 years ago

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3 years ago

Which of the following pure compounds will exhibit hydrogen bonding?

Stolb23 [73]

Answer:

A, F, H

Explanation:

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