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3 years ago

What do you call an atom that has different numbers of protons and neutrons?

Chemistry

1 answer:

nevsk [136]3 years ago

5 0

It is called isotopes

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Please help!!! Is it balanced or unbalanced?

Black_prince [1.1K]

Hey there!

I believe the answer you are looking for is Unbalanced!

If I am incorrect I am very sorry and would love any feedback.

Have a nice day, and Happy Halloween!

6 0

4 years ago

PLEASE HELP this is physical science.

Andru [333]

Bone age : 22,920 years

<h3>Further explanation</h3>

Given

Nt = 2.5 g C-14

No = 40 g

half-life = 5730 years

Required

time of decay

Solution

General formulas used in decay:

$\large{\boxed{\bold{N_t=N_0(\dfrac{1}{2})^{t/t\frac{1}{2} }}}$

t = duration of decay

t 1/2 = half-life

N₀ = the number of initial radioactive atoms

Nt = the number of radioactive atoms left after decaying during T time

Input the value :

$\tt 2.5=40.\dfrac{1}{2}^{t/5730}\\\\\dfrac{2.5}{40}=\dfrac{1}{2}^{t/5730}\\\\(\dfrac{1}{2})^4=\dfrac{1}{2}^{t/5730}\\\\4=t/5730\rightarrow t=22920~years$

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3 years ago

T = 409.5 K, P = 1.50 atm: V = ?L

Molodets [167]

Explanation:

T = 409.5 K, P = 1.50 atm: V = 22.4 L The ideal gas law is: PV = nRT where. P = pressure. V = volume n = number of moles.

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3 years ago

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Dafna1 [17]

Answer:

I can be a friend if u need

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You have placed a can of lemonade in a cooler of is ice.what is the best way to describe what is happening to the ice

Firdavs [7]

<span>Heat from the can is making the water molecule move faster, which melts the ice.</span>

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4 years ago

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