Guide questions
q 26. what idea is common in each set of pictures?
q 27. what are the negative lifestyles that are depicted in the pictures?
q26. how can lifestyle affect the functioning of the respiratory and
circulatory systems?
q 29. how can these negative lifestyles be changed?
q 30. what might happen if a person goes on with a negative lifestyle such as
what were seen in the activity?
enrichment activity

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.