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SVEN [57.7K]
3 years ago
5

Can a tank of oxygen gas ever be half empty? Explain

Chemistry
2 answers:
Ksivusya [100]3 years ago
5 0
Yes they can. That's why they sell refills for them
Tju [1.3M]3 years ago
5 0
<span>Yes, they can be half empty. Oxygen canister's contain different types of oxygen some are very pure. They are filled at very high pressures.</span>
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Which process transfers heat from the ground to the air touching it? Conduction Convection Evaporation Radiation
Delicious77 [7]

Convection

Explanation:

Heat is a form of thermal energy borne as result of thermal energy. It is observed as temperature differences between places.

There are different types of heat transfer:

  • Conduction
  • Convection
  • Radiation

Conduction is a heat transfer which involves the actual movement of the collision of the molecules of the medium.

Convection is a heat transfer in fluids by their movement from areas of higher to places of lower heat.

Radiation is heat transfer using electromagnetism and does not involve molecules of the medium

The process of heat transfer from ground to the air touching it is convection. It involves particles of the air.

Learn more:

Convection brainly.com/question/1140127

#learnwithBrainly

8 0
3 years ago
Which statement describes one feature of Rutherford model of the atom
serious [3.7K]

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<em><u>The Rutherford model shows that an atom is mostly empty space, with electrons orbiting a fixed, positively charged nucleus in set, predictable paths.</u></em>

6 0
2 years ago
Which of the following represents positron emission? Select one: a. 3015P ---&gt; 3014Si + ___ b. 23892U ---&gt; 23490Th + ___ c
xxTIMURxx [149]
The simple trick which one can consider in such problem where it is asked for positron emission is :
<span>When the atomic number goes DOWN by one and mass number remains unchanged, then a positron is emitted.
</span>
<span>a.  </span>P^{30}_{15}  ----\ \textgreater \   Si^{30}_{14} + e^{0}_{1}^+
<span>
Here the atomic number decreases by one.

Similarly, options b and d are eliminated.

Option c is also not the answer.
For c, Count the atomic number on left side and compare it with right side. You will see it is 9 on left and 8 on right. Atomic no. did go down by 1. But the atomic mass is changed as well.

</span>
8 0
3 years ago
If 100. ml of water is added to 25 ml of 5.0 m nacl, the final concentration is __________.
Iteru [2.4K]
We may apply a mass balance here. The total moles of NaCl will remain constant before and after the mixing of the solutions. We have three solutions:
1) 25 ml of 5 M NaCl
2) 100 ml of 0 M NaCl
3) A mixture of these solutions with volume 125 ml and concentration C

The moles of a substance are equal to the product of the concentration and volume. Thus:

25 * 5 + 100 * 0 = 125 * C
C = 1 M

The concentration of the final solution is 1 M.
4 0
3 years ago
Read 2 more answers
Does a reptile play the same role as a bird in the WNV???<br> PLZ HURRY PLZ
Slav-nsk [51]
The birds could have more diseases and could pass it to other reptiles
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3 years ago
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