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jeka57 [31]
3 years ago
11

Ice floats due to its?

Chemistry
1 answer:
Svetlanka [38]3 years ago
5 0

Answer: it floats because it’s less dense than water

Explanation: since it’s less dense it floats

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Na2O How many atoms of each element are in this compound? A. 2 sodium atoms and 1 oxygen atom B. 2 sodium atoms and 2 oxygen ato
olchik [2.2K]

Answer:

A

Explanation:

There are 2 sodium atoms and 1 oxygen atom.

6 0
3 years ago
An anaerobic reaction takes place
Dafna1 [17]
As the name implies, anaerobic means there is no presence of oxygen. So if it will take place, it will only take place in little or no oxygen which is in the last sentence in the following choices. First and second choice are wrong for there is a need of oxygen required when there is no oxygen is needed and the presence of nitrogen in water.
6 0
3 years ago
A pocket of gas is discovered in a deep drilling operation.The
Nataly_w [17]

Answer : The volume of gas required to provide 18.01L of gas  at the surface is, 3.6 L

Explanation :

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

where,

P_1 = initial pressure of gas = 12.8 atm

P_2 = final pressure of gas = 1.0 atm

V_1 = initial volume of gas = ?

V_2 = final volume of gas = 18.01 L

T_1 = initial temperature of gas = 480^oC=273+480=753K

T_2 = final temperature of gas = 22^oC=273+22=295K

Now put all the given values in the above equation, we get:

\frac{12.8atm\times V_1}{753K}=\frac{1.0atm\times 18.01L}{295K}

V_1=3.59L\approx 3.6L

Therefore, the volume of gas required to provide 18.01L of gas  at the surface is, 3.6 L

7 0
3 years ago
if the nuclide has a half-life of 8.0 days , what mass of the nuclide remains in the patient at 6:00 p.m. the next day? (assume
nata0808 [166]

The mass of the nuclide that will remain in the patient at 6:00 p.m. the next day is 94 g

<h3>How to determine the number of half-lives that has elapsed</h3>

We'll begin by obtaining the number of half lives that has elapsed. This can be obtained as follow:

  • Half-life (t½) = 8 days = 8 × 24 = 192 hours
  • Time (t) = 6 pm next day = 18 hours
  • Number of half-lives (n) =?

n = t / t½

n = 18 / 192

n = 0.09375

<h3>How to determine the amount remaining </h3>
  • Original amount (N₀) = 100 g
  • Number of half-lives (n) = 0.09375
  • Amount remaining (N) = ?

N = N₀ / 2^n

N = 100 / (2^0.09375)

N = 94 g

Thus, 94 g of the nuclide is remaining in the patient's body,

Learn more about half life:

brainly.com/question/26374513

#SPJ1

4 0
2 years ago
What are sand grains,pebbles,mud,shells, and leaves all examples of
navik [9.2K]
Abiotic factors maybe?
6 0
3 years ago
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