Answer:
a, b and d are correct.
Explanation:
There are two types of attractive forces in covalent compounds:
- The force that holds the atoms together in a molecule (the covalent bond).
- The force that <u>operates between molecules</u>, called an intermolecular force.
Because intermolecular forces are usually quite weak compared with the forces holding atoms together within a molecule, <u>molecules of a covalent compound are not held together tightly</u>. Consequently, covalent compounds are usually gases, liquids, or low-melting solids.
Most covalent compounds aqueous solutions generally do not conduct electricity, because the compounds are nonelectrolytes.
Answer:
New volume V2 = 120.4 ml
Explanation:
Given:
Pressure P1 = 1.12 atm
New pressure P2 = 1.12[1+0.25] = 1.4 atm
Old volume V1 = 150.5 ml
Find:
New volume V2
Computation:
P1V1 = P2V2
(1.12)(150.5) = (1.4)(V2)
V2 = 120.4 ml
New volume V2 = 120.4 ml
Answer:
B. Na2SO3 is one of the reactants
Explanation:
Answer:
300kg
Explanation: The question says about 30%, so I think it is 300kg
