Answer: Option (a) is the correct answer.
Explanation:
The stream that flows during or after the rainfall is called an ephemeral stream. This stream occurs in areas where there is less rainfall or deficiency of moisture.
The stream that flows only in flat lands is called as river.
Mechanical weathering results in the breaking of rocks causes ice wedging.
Chemical weathering results in the change in molecular structure of rocks and soil.
Thus, it can be concluded that option (a) is the correct answer.
phosphorus in water is rapid combustion.
The Answer would be e: 3.2 g/L
<span>At STP : p = 1 atm and T = 273.15 K
molar mass Cl2 = 70.906 g/mol
d = molar mass x p/RT = 70.906 x 1 atm / 0.08206 x 273.15=3.16 g/L</span>
Answer:
The coefficients are: 1, 2, 1, 2
Explanation:
To know which option is correct, we shall balance the equation. This can be obtained as follow:
SnO₂ + H₂ —> Sn + H₂O
There are 2 atoms of O on the left side and 1 atom on the right side. It can be balance by writing 2 before H₂O as shown below:
SnO₂ + H₂ —> Sn + 2H₂O
There are 2 atoms of H on the left side and a total of 4 atoms on the right side. It can be balance by writing 2 before H₂ as shown below:
SnO₂ + 2H₂ —> Sn + 2H₂O
Now the equation is balanced.
The coefficients are: 1, 2, 1, 2
Thus, none of the options are correct.