Among the following compounds which are isomers? I. CH3CH2-O-CH3 II CH3CH2CH2OH
III CH3CH2–0-CH2CH3 IV. CH2=CH-O-CH3

CH  

3

CH  

2

OCH  

3

 and CH  

3

CH  

2

CH  

2

OH have different functional groups, hence, they are functional isomers.

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.