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Olin [163]
3 years ago
7

Sailin' Steve likes to test the buoyancy of different objects. He threw a spherical object into a fluid that has a greater densi

ty than the object does. He also threw a square object into the fluid that has a greater density than the fluid.
Chemistry
1 answer:
Hunter-Best [27]3 years ago
7 0
The spherical object will float and the square object will sink to the bottom of the fluid as it has greater density. :)
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Define the term pH in acid and base​
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Answer:

a measure of how acidic/base water is.

Explanation:

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3 0
1 year ago
Name 2 separate technique in separating iodine crystal and iron filings​
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One is through sublimation, where the mixture is heated and iodine gets converted into gaseous form, leaving behind the iron fillings.

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5 0
3 years ago
2. What element could contain seven protons, eight neutrons, and seven electrons?
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3 years ago
The half-life of radon gas is approximately four days. Four weeks after the introduction of radon into a sealed room, the fracti
maksim [4K]

The fraction of the original amount remaining is closest to 1/128

<h3>Determination of the number of half-lives</h3>
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  • Time (t) = 4 weeks = 4 × 7 = 28 days
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n = t / t½

n = 28 / 4

n = 7

<h3>How to determine the amount remaining </h3>
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N = N₀ / 2ⁿ

N = 100 / 2⁷

N = 0.78125 g

<h3>How to determine the fraction remaining </h3>
  • Original amount (N₀) = 100 g
  • Amount remaining (N)= 0.78125 g
  • Fraction remaining =?

Fraction remaining = N / N₀

Fraction remaining = 0.78125 / 100

Fraction remaining = 1/128

Learn more about half life:

brainly.com/question/26374513

7 0
2 years ago
Which element has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d11 4p4?
pickupchik [31]
<span>Selenium (se) 
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2 years ago
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