Nitrogen (n) and hydrogen (h) react with each other to produce ammonia (nh3). this reaction is shown in an equation as n2 + 3h2 → 2nh3. what is the ratio of nitrogen atoms to hydrogen atoms in ammonia?
1 to 2
1 to 3
2 to 1
2 to 3
3 to 1
nextreset

Why is the theory of evolution important? it disproves all other theories about how life began. it provides a topic for debate. it is a unifying concept in biology. it explains how life began. i know for sure, it is not "it is a unifying concept in biology."

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.

If your blood becomes too concentrated with iona, what will happen to the red blood cells