Answer:
Molality = 66.67g/L
Explanation:
Mass of sucrose = 100g
Volume of water = 1.50L
Molality = mass of substance/ volume in L
Molality = 100 / 1.50
Molality = 66.67g/L
Molality of 100g of sucrose in 1.50L of water is 66.67g/L
Answer: The given compounds are arranged according to decreasing boiling point as 
.
Explanation:
The temperature at which vapor pressure of a substance becomes equal to the atmospheric pressure is called boiling point.
Stronger is the intermolecular forces present the atoms of a molecule more heat will be required by it to break the bond between its atoms. Hence, more will the boiling point of the molecule.
In 
(methanol), there is hydrogen bonding present which is a stronger force. So, it will have highest boiling point as compared to 
and 
.
In (chloroform), there is more electronegative atom attached (Cl) is attached to less electronegative atom (C and H). So, electrons are more pulled towards the chlorine atom. So, boiling point of is more than methane 
.
Thus, we can conclude that given compounds are arranged according to decreasing boiling point as .
Able to be hammered or pressed permanently out of shape without breaking or cracking. An example would be hot metal being shaped.
Answer:
Protons
Explanation:
Typically protons cannot be removed from the atom. Removing protons from an atom will completely change the atom as it will become another element entirely.
In an atom, protons are held by strong nuclear forces.
- Within an atom, protons are the positively charged particles.
- Together with the neutrons, they are found in the nucleus of an atom.
- The number of protons within an atom is the atomic number of the atoms and it determines the nature and type of atom it is.
- Protons cannot be removed from an atom due to the strong binding force holding them together in place.
