21) T
22) F
23) F
24) T
25) T
26) F
27) F
28) I can’t see if it says increases or decreases, but the correct answer is increases.
29) T
30) F
31) T
32) F
33) F
34) F
35) T
36) T
37) F
1 mole of any gas will occupy 24dm^3 or 24000cm^3 as one mole of helium weighs 4g it will occupy just under 24000cm^3
Answer:
NaCl: ionic, HF: hydrogen bond, HCl: dipole dipole , F2: dispersion force
Explanation:
complete question is:
The four major attractive forces between particles are ionic bonds, dipole-dipole attractions, hydrogen bonds, and dispersion forces. Consider the compounds below, and classify each by its predominant attractive or intermolecular force among atoms or molecules of the same type.Identify each of the following ( NaCl, HF, HCl, F2) as Ionic, H Bonding, Dipole or Dispersion.
Answer:
B sediment
Explanation:
The excess mileage leads to additional pollution. Car exhaust contains toxic gases, and car fluids often leak (oil drips, antifreeze leaks, etc...). The exhaust also contains nitrogen oxide, which can lead to nutrient-related problems in the environment.