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3 years ago

Explain why you hear a “whoosh” sound when you open a can containing a carbonated drink. Which gas law applies?

2 answers:

6 0

Carbonated drinks have the air under pressure so that carbon bubbles are forced into the drink, keeping it carbonated. So when you open a can, the air under pressure in the can comes out of the can at a high speed, making a "whooshing" sound. The gas law that applies to this concept is the Boyle's Law (PV=k or P1V1=P2V2).

Ad libitum [116K]3 years ago

3 0

Answer:

sorry the other one is a very bad answer i just took the test so this should. good luck

Explanation:

The carbon dioxide in the head space above the liquid is at higher pressure than atmospheric pressure outside the can.

The gas is at a lower volume initially but suddenly has a larger volume available when the can is opened.

The change in pressure as the gas rapidly moves to become dispersed through its new volume causes the “whoosh” sound.

The gas law that applies is Boyle’s law.

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Mercury-203 undergoes beta minus decay. The subscript in the nuclide notation, Hg, is _____.

Ganezh [65]

1. The subscript when writing the notation is always dedicated to the atomic number of the element. Since the atomic number for Mercury, Hg, is 80, then the subscript is 80.

2. For the second problem, you just have to balance out the subscripts and superscripts of the reactions.

Superscripts: 203 = 203 + ?; To balance, the missing number would be 0.
Subscripts: 80 = 81 + ?; To balance, the missing number would be -1.
Hence the particle produced is actually an electron, or a beta particle (not an element). The mass number is 0, and the atomic number is 0 (since it does not contain any proton).

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4 years ago

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3 years ago

Somebody help with A B and C please will give brain thanks

Norma-Jean [14]

Answer:

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Explanation:

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3 years ago

After two half-lives, how much of the original material has decayed? 25 percent 50 percent 75 percent 100 percent

RideAnS [48]

The original material has decayed 75%

<h3>Further explanation</h3>

Given

two half-life

Required

The decayed sample

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

t = 2 x t 1/2

Input the value :

$\tt \dfrac{Nt}{No}=\dfrac{1}{2}^2=\dfrac{1}{4}=25\%$

The amount of Nt = 25% No

8 0

3 years ago

Which of these atoms has the largest number of neutrons in the nucleus?

viktelen [127]

Holonium and Gadolinium has the highest number of neutrons in the nucleus.

Looking at the atoms listed;

Dysprosium has 66 protons

Holonium has 67 protons

Neodymium has 60 protons

Europium has 63 protons

Gadolinium has 64 protons

Then,

Number of neutrons = Mass number - number of protons

For Dysprosium

157 - 66 = 91 neutrons

For Holonium

162 - 67 = 95 neutrons

For Neodymium

149 - 60 = 89 neutrons

For Europium

148 - 63 = 85 neutrons

For Gadolinium

159 - 64 = 95 neutrons

Hence, Holonium and Gadolinium has the highest number of neutrons in the nucleus.

Learn more: brainly.com/question/14156701

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