IONIC BONDING: this occurs between metal and nonmetal atoms. It occurs as a result of electron transfer from one atom to another.
<u>Example</u>: NaCl is an ionic compound (between a metal, Na, and a nonmetal, Cl)
POLAR COVALENT: 2 atoms share bonded pairs of electrons sort of unequally. Electrons in a polar covalent bond are more attracted to one atom than the other atom. This type of bonding occurs between nonmetals.
<u>Example</u>: HF has polar covalent bonds
NONPOLAR COVALENT: occurs between nonmetals atoms. this type of bonding occurs between atoms with almost the same electronegativity.
<u>Example</u>: N2
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Physical. No change in molecules. It goes from hard to liquid.
Answer:
The value of new pressure will be 1.56 atm.
Explanation:
Using combined gas law :
The combined gas equation is,
where,
= initial pressure of gas = 2.4 atm
= final pressure of gas = ?
= initial volume of gas =
= final volume of gas = 15 L
= initial temperature of gas =
= final temperature of gas =
Now put all the given values in the above equation, we get:
The value of new pressure will be 1.56 atm.
Answer:
A. Experiment help explain scientific theories
D - by undergoing all of these changes you would still be left with the same substance