3 years ago

If an isotope decay by process of beta emission

1 answer:

7 0

Unstable nuclei split up in a process called radioactive decay and emit radioactive radiation. You need to know the effect of alpha and beta decay on the nucleus. The nucleus of an atom can be represented as: ... A = atomic mass (number of protons + neutrons)

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While both comets and asteroids are found to orbit the sun in our solar system which system which choice correctly explain how t

Alika [10]

Answer:

Comets are made of ice, dust, and rocky material. Asteroids are made of rock and metal material.

Explanation:

thats how they are different from each other

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3 years ago

A 4.5-liter sample of a gas has 0.80 mole of the gas. If 0.35 mole of the gas is added, what is the final volume of the gas? Tem

AVprozaik [17]

Answer:

6.5 liters will be your answer

Explanation:

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3 years ago

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The mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same thing as weight, but the abb

Nimfa-mama [501]

Answer:

$\boxed{\text{254 g}}$

Explanation:

$\begin{array}{rcl}\text{\% m/V} & = & \dfrac{\text{Mass of sucrose}}{\text{Volume of solution}}\\\\\text{Let m}& = &\text{mass of sucrose}\\\dfrac{\text{35.0 g}}{\text{100 mL}}& = & \dfrac{m}{\text{725 mL}}\\\\m & = &\dfrac{\text{35.0 g}\times 725}{100}\\\\ & = &\textbf{254 g}\\\end{array}\\\text{You need $\boxed{\textbf{254 g}}$ of sucrose}$

3 0

3 years ago

Help help help.

Whitepunk [10]

I think B
Hope this helps!

4 0

3 years ago

How do I do letter D? Someone help me please

Minchanka [31]

So for D you have to find energy right
from c you get wavelength Lambda
so on D use this
E = Hc / lambda
c is given 1.5 x 10 ^20
h = 6.624 x 10^-34
and then you get answer for energy

8 0

3 years ago