The vocabulary terms in this chapter are related to each other in various ways. For each group of words
below, write a sentence or two to clearly explain how
the terms are connected. For example, for the terms
covalent bond and molecule, you could write “A
molecule is made of atoms connected by covalent
bonds."
1. atom, ion
2. hydrogen bond, cohesion
3. solution, solvent
4. acid, base, pH
5. exothermic, endothermic
6. catalyst, enzyme

In the water cycle , when does water undergo a chemical change

Duchenne muscular dystrophy is a serious condition caused by a recessive allele of a gene on the human x chromosome. the patients have muscles that weaken over time because they have absent or decreased dystrophin, a muscle protein. they rarely live past their twenties. how likely is it for a woman to have this condition? a) women can never have this condition.b) one-fourth of the daughters of an affected man would have this condition.c) one-half of the daughters of an affected father and a carrier mother could have this condition.d) only if a woman is xxx could she have this condition.

Consider the activity and specificity of the three enzymes.pepsin is most active in the human and to digest