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Gnoma [55]
3 years ago
13

CAN ANYONE ANSWER THIS ONE CHEMISTRY QUESTION PLZZZ!!!

Chemistry
2 answers:
xz_007 [3.2K]3 years ago
8 0

Answer:

2.8 oxygen

Explanation:

Pavlova-9 [17]3 years ago
4 0

Answer:

9.6, because 2.4 x 4 = 9.6 oxygen.

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20 POINTS!<br> I would like to know what the quantum theory is in detail, thanks!
Ainat [17]
Technically, "quantum theory" is actually just the theory associated with quantum mechanics, ie; the theory of any objects isolated from their surroundings but, because it is very difficult to isolate large objects from their environments, it essentially becomes a theory of the microscopic world of atoms and sub-atomic particles.
5 0
4 years ago
What is the ionic form of this unbalanced equation? mno2 + hno2 → mn(no3)2 + h2o?
KATRIN_1 [288]
The  ionic  form  of  the unbalanced  equation

MnO2  +HNO2 =  Mn(NO3)2  +H2O  is  as   below

MnO2(s)   +  H^+(aq)  + NO2^-(aq) = Mn^2+(aq)  + No3^-(aq)  +  H20(l)

MnO2   does  not  dissociate  since it is  in solid state. In   addition H2O   is in liquid  state  thus  does  not  dissociate in to  ions
6 0
3 years ago
in an aerosol spray can with a volume of 456 ml contains is 3.18g of propane gas as a propellant If the can is at 23° C and 50 A
Mekhanik [1.2K]

Answer:    Answer:

21.03L

Explanation:

V1 = 456mL = 0.456L

T1 = 23°C = (23 + 273.15)K = 296.15K

P1 = 50atm

V2 = ?

T2 = 273.15K

P2 = 1.0atm

Note : P2 and T2 are at STP which are 1.0atm and 273.15K

To find V2, we have to use the combined gas equation,

(P1 × V1) / T1 = (P2 × V2) / T2

P1 × V1 × T2 = P2 × V2 × T1

V2 = (P1 × V1 × T2) / (P2 × T1)

V2 = (50 × 0.456 × 273.15) / (1.0 × 296.15)

V2 = 6227.82 / 296.15

V2 = 21.029L

Final volume of the gas is 21.03L

Explanation:

8 0
3 years ago
Which of the following best explains why 1-butanol, CH₃CH₂CH₂CH₂OH, has a higher surface tension than its isomer, diethyl ether,
Debora [2.8K]
As the H bond of the butanol is more effective and strong than Van der Waals forces of the ether the surface tension in alcohol is more intensive.

So the correct answer is e)
4 0
3 years ago
What is an atom? Is it stable? Give reasons to support your answer.
Alex
A stable atom is an atom that has enough binding energy to hold the nucleus together permanently. An unstable atom does not have enough binding energy to hold the nucleus together permanently and is called a radioactive atom.
3 0
3 years ago
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