Answer:
D. the quantity of heat that is required to raise 1 g of the sample by 1*C (kelvin) at a constant pressure.
It usually holds more water because of evaporation and makes the earth very hot.
Answer:
Intermolecular forces are the interactions that exist between molecules. Hydrogen bond typically occurs when a hydrogen atom bonded to O, N, or F, is electrostatically attracted to a lone pair of electrons on an O, N, or F in another molecule. Polarizability is a measure of how the electron cloud around an atom responds to changes in its electronic environment. London forces, also known as dispersion forces are weak interactions caused by the momentary changes in electron density in a molecule. Dipole-dipole are the attractive forces between the permanent dipoles of two polar molecules. All compounds exhibit van der Waal forces.
Explanation:
Molecules interact each other by intramolecular forces. Among them are van der Waal forces, which are weak interactions, so all compounds interacts by this kind of forces. London forces (dispersion forces) are comprised in the group of van der Waal forces, so they are weak forces. Hydrogen bond is a stronger force, which is resposible for the structure of ice and properties of liquid water (water molecules interacts each other by hydrogen bond), so they are very important forces!
Polarizability is the trend of a molecule to became more polar (when exist a net charge differences in the molecule).
Answer: 8.7 grams
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 
of particles.
To calculate the moles, we use the equation:
As oxygen is in excess, Aluminium is the limiting reagent and limits the formation of products.
According to stoichiometry:
4 moles of aluminium give = 2 moles of 
Thus 0.17 moles of aluminium give=
Mass of 
Thus the mass of is 8.7 grams
Answer:
Analysis of a sample of a compound composed of carbon, hydrogen, and oxygen shows that the sample contains 18.80 g of C, 2.367 g of H, and 25.04 g of O.
The properties of the compound suggest that the molar mass should be 59.04 g/mol.
How many carbon atoms are there in one molecule of the compound?
Explanation:
Empirical formula mass is
Empirical formula mass =molecular formula mass
Hence,
empirical formula is same as molecular formula.
That is --- 
.
So, the molecule has two carbon atoms in one molecule of the compound.
