Answer : Half reaction is defined as the reaction which will be <span>either the oxidation or reduction </span>reaction<span> of particular species in a given redox </span>reaction<span>.
So as per the definition in the reaction of,
</span>
<span>
</span>
<span>
here on left and right side </span>
will get cancelled.
and we will get,
Here,
...this is oxidation reaction as Ba is getting reduced to
by losing 2 electrons.
whereas,on the other hand,
...this is reduction reaction as
is getting reduced to Zn by gaining 2 electrons.
Carbon dioxide, water;then energy source in sunlight and chlorophl maybe
Answer:
The metals have the tedency to lose electrons and become positive ions
Explanation:
In order to attain noble gases electronic configuration, metals of group I A lose one electron and II A lose 2 electrons with ionization energy.
Answer:
Position D
Explanation:
One fourth of the Moon will be visible from Earth when the Moon is in position D. The reason why this is the right position is that the Moon will be in a position where the majority of its surface that is lighted by the Sun is facing the Sun. On the other hand, the angle is just right that about one quarter of the lighted part of the Moon is also facing the Earth. This will result in a perception from the Earth's view point that the Moon is lighted at one quarter of its surface.
Answer:
640 g
Explanation:
Step 1: Given and required data
- Volume of the cylinder (V): 20 L
- Pressure of the oxygen (P): 25 atm
- Temperature (T): 27 °C (300 K)
- Ideal gas constant (R): 0.082 atm.L/mol.K
Step 2: Calculate the moles of oxygen gas
We will use the ideal gas equation
P × V = n × R × T
n = P × V / R × T
n = 25 atm × 20 L / (0.082 atm.L/mol.K) × 300 K = 20 mol
Step 3: Calculate the mass corresponding to 20 moles of oxygen
The molar mass of oxygen is 32.00 g/mol.
20 mol × 32.00 g/mol = 640 g
