Answer :
The atmospheric pressure of water if boiling at 81 °C will be 369 mmHg.
Explanation : The vapor pressure of boiling water can be calculated using the Antoine Equation:
log P = A - ,
where P is the pressure in mmHg,
A = 8.07131,
B = 1730.63
C = 233.426
and T = temperature in °C (81°C)
Substituting the given values, we get,
Log P = 8.07131−
Therefore, Log P =8.07131 − 5.5041 = 2.567.
Now, P = =369 mmHg.
Hence, the atmospheric pressure will be 369 mmHg.
We know that the greater the difference is in
electronegativity between the atoms which holds the molecule, the greater the
polarity is the bonds between them. <span>
<span>Since we know that F has the highest electronegativity among
all the elements, therefore PF3 has more
polar bonds than PCl3. </span></span>
The electron has a negative charge
the neutron has a neutral charge
the proton has a positive charge
i remember this like
neutron-NEUtral
proton-POsitive
electron-electricity hurts it always has NEGATIVE effects
Answer:
People, especially kids, tend to think that when water evaporates it just disappears, or turns into the air. But we know based on the law of conservation of mass that any time water changes state it keeps the same mass!
Similarly, when water vapor turns to water droplets, when it goes from its gas to its liquid state, it still has the same mass. It's just in a different phase. This is a perfect example of conservation in mass!
Answer:
Saccharose
Explanation:
Disaccharide Saccharose is formed by glucose and fructose, both monosaccharides are bound by their anomeric carbons (O-glucosidic), this is, both reducing carbons form the O-glucosidic bond, hence, they are not available to reduce Ag⁺ to Ag⁰