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Misha Larkins [42]
3 years ago
7

How well did tossing the pennies simulate half lives?

Chemistry
1 answer:
SSSSS [86.1K]3 years ago
5 0
Its a 50% chance that approx 1/2 of the pennies will land on tails. The next toss will result the same. and so on and so on. showing how a reaction would slowly eliminate 1/2 of the remaining lives per reaction, until nothing is left. I think it is a good stimulation.
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What best describes why hair gel is considered a noncrystalline solid?
ad-work [718]

Given what we know, we can confirm that hair gel is considered a noncrystalline solid due to Atoms in the hair gel having no particular order or pattern.

<h3>What is a noncrystalline solid?</h3>
  • This is a solid whose atoms are amorphous.
  • What this means is that the atoms lack a specific order like most solids.
  • The most common example of this is glass.

Therefore, given the definition of a noncrystalline solid as a solid whose atoms lack a specified order, we can confirm that the second option which states that "Atoms in the hair gel having no particular order or pattern" is correct.

To learn more about Atoms visit:

brainly.com/question/13981855?referrer=searchResults

3 0
3 years ago
How many grams of HCL are needed to make 500.0 mL of a 0.100 M solution?
Brums [2.3K]

Answer:

1.44 g

Explanation:

The problem gives you the molarity and volume of the target solution, so right from the start you know that you can use that information to determine the number of moles of hydrochloric acid that it must contain.

So, molarity measures a solution's concentration in terms of how many moles of solute, which in your case is hydrochloric acid, you get per liter of solution.

A

0.158 M

hydrochloric acid solution contains

0.158

moles of hydrochloric acid for very liter of solution. Since you're dealing with

250 mL

, the equivalent of

1

4

th

of a liter, your solution will contain

250

mL

⋅

1

L

10

3

mL

⋅

0.158 moles HCl

1

L

=

0.0395 moles HCl

Now that you know how many moles of hydrochloric acid are needed to prepare your solution, use the compound's molar mass to convert this to grams

0.0395

moles HCl

⋅

36.46 g

1

mole HCl

=

∣

∣

∣

∣

¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

a

a

1.44 g

a

a

∣

∣

−−−−−−−−−−

Explanation:

Please  brainliest.

4 0
3 years ago
How many molecules are in 3.0 moles of O2
Alex777 [14]
Answer:  " <span>1.8 * 10²⁴ molecules of O₂ " .
________________________________________</span>

3.0 moles O₂ * (6.02 * 10²³ molecules O₂ / 1 mol O₂) = 


[ (3.0) *(6.02 * 10²³) ] molecules O₂
                                  = 1.806 * 10²⁴ ; round to 2 significant figures.
                                              = 1.8 * 10²⁴ molecules of O₂ .
______________________________________________________
5 0
3 years ago
Which diagram represents an object at static equilibrium?
LuckyWell [14K]

Answer:

it is not D!! i took the test and it was wrong on plato

Explanation:

6 0
3 years ago
Which of the following has a relationship with amplitude in waves? *
Natasha2012 [34]

Answer:

energy

Explanation:

The amount of energy carried by a wave is related to the amplitude in waves.

6 0
3 years ago
Read 2 more answers
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