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3 years ago

What cannot exsist in the United States as a result of the Thirteenth Amendment?

1 answer:

6 0

Answer - The 13th amendment to the United States Constitution provides that "Neither slavery nor involuntary servitude, except as a punishment for crime whereof the party shall have been duly convicted, shall exist within the United States, or any place subject to their jurisdiction."

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Select the atomic models that belong to the same element.<br> Sign out<br> INTL

Allushta [10]

Answer:

Atoms of the same element (i.e., atoms with the same number of protons) with different numbers of neutrons are called isotopes. Most naturally occurring elements exist as isotopes. For example, most hydrogen atoms have a single proton in their nucleus.

5 0

3 years ago

All rocks form deep beneath Earth's surface. True or False

4vir4ik [10]

False is your answer :)

5 0

3 years ago

Read 2 more answers

What is the single replacement reaction for chlorine + aluminum bromide

Arlecino [84]

Chlorine + aluminium bromide --> aluminium chloride + bromine
Chlorine replaces bromide in AlBr3
3Cl2 + 2AlBr3 ---> 2AlCl3 + 3Br2

Hope it helped!

4 0

4 years ago

If you had a 5 gram sample of lawrencium how much would still remain in 30 minutes

mart [117]

Answer:

$\large \boxed{\text{4.5 g}}$

Explanation:

There are eight isotopes of lawrencium, and they are all radioactive,

I will do the calculation for ²⁶²Lr, which has a half-life of 3.6 h.

Let A₀ = the original amount of lawrencium.

The amount remaining after one half-life is ½A₀.

After two half-lives, the amount remaining is ½ ×½A₀ = (½)²A₀.

After three half-lives, the amount remaining is ½ ×(½)²A₀ = (½)³A₀, and so on.

We can write a general formula for the amount remaining:

A =A₀(½)ⁿ

where n is the number of half-lives

$n = \dfrac{t}{t_{\frac{1}{2}}}$

Data:

A₀ = 5 g

t = 30 min

$t_{\frac{1}{2}} = \text{3.6 h}$

Calculations:

(a) Convert the half-life to minutes

$t_{\frac{1}{2} }= \text{3.6 h} \times \dfrac{\text{60 min}}{\text{1 h}} = \text{216 min}$

(b) Calculate n

$n = \dfrac{30}{216} = 0.1389$

(c) Calculate A

$A = \text{5 g} \times \left (\dfrac{1}{2}\right)^{0.1389} = \text{5 g} \times 0.9082 = \textbf{4.5 g}\\\\\text{The mass of lawrencium remaining after 30 min is $\large \boxed{\textbf{4.5 g}}$}$

8 0

4 years ago

What happens when a Bose-Einstein condensate forms?

balu736 [363]

Answer:

Explanation:

Bose–Einstein condensate is what happens to a dilute gas when it is made very cold, near absolute zero ( −273.15 °C or −459.67 °F). It forms when the particles that make it up have very low energy. The gas has extremely low density, about one-hundred-thousandth the density of normal air.

I do hope I helped you, sir! :)

6 0

3 years ago