Answer:
Explanation:
statinary front is when a cold air mass and a warm air mass but are at a standstill the boundry is called statinary front sorry i could not give you other anwsers
60mmHg = 1 atm
<span>1 mmHg = 1/760atm </span>
<span>610mmHg = 610/760 </span>
<span>= .80atm</span>
Answer:
2.23L
Explanation:
Using the general gas law as follows:
PV = nRT
Where;
P = pressure (atm)
V = volume (L)
n = number of moles (mol)
R = gas constant (0.0821 Latm/molK)
T = temperature (K)
According to the information provided in this question,
Mass of nitrogen = 2800mg
Since 1g = 1000mg
2800mg = 2800/1000
= 2.8g
Using mole = mass ÷ molar mass
Molar mass of nitrogen gas (N2) = 28g/mol
mole = 2.8/28
mole of N2 gas = 0.1mol
Pressure = 98kPa
1 kilopascal (kPa) = 1000pascal (pa)
98kPa = 98 × 1000
= 98000pascal
Since 1 Pascal = 9.869 × 10^-6 atmosphere (atm)
98000pascal = 98000 × 9.869 × 10^-6
= 0.967atm
Temperature = -10°C
Kelvin = °C + 273
Kelvin = -10 + 273
K = 263K
Hence, using PV = nRT
0.967 × V = 0.1 × 0.0821 × 263
0.967V = 2.159
V = 2.159/0.967
V = 2.23
Volume of Nitrogen gas = 2.23 L
The oxidation number of V and Al in each ion is +3 and +4 respectively.
<h3>What is oxidation number in chemistry?</h3>
oxidation number, also called oxidation state, the total number of electrons that an atom either gains or loses in order to form a chemical bond with another atom.
<h3 /><h3>Why is it called oxidation number?</h3>
The term oxidation was first used by Antoine Lavoisier to signify the reaction of a substance with oxygen. Much later, it was realized that the substance, upon being oxidized, loses electrons, and the meaning was extended to include other reactions in which electrons are lost, regardless of whether oxygen was involved.
Learn more about oxidation number here:
<h3 /><h3>
brainly.com/question/8990767</h3><h3 /><h3>#SPJ4</h3>
Answer:
the protection one
Explanation:
the cell wall acts a barrier
