Calculate the mass percent of each element in a compound. Writer solution in a separate sheet of paper. each element in the following compounds:
1. Methane, CH4(C=12.01g/mol;H =1.008 g/mol)
2. Sodium nitrate, NaNO3 (Na=23.0 g / mol;N =14. g/mol;O = 16.0 g/mol)

Aheterozygous normal male marries a woman with a sickle cell anemia. give the genotypes and possible phenotypes of the offspring

Refer to the family pedigree shown here. in generation i, one parent is affected by the gene mutation and one parent isn't. in generation ii, all three children are affected by the gene mutation. what can you conclude about this gene mutation? a. all children born in future generations will be affected by this disorder. b. this gene mutation is a dominant disorder. c. this gene mutation is a recessive disorder. d. the generation i mother is a carrier of this gene mutation.

Which u.s. state lists the horned toad as its state reptile?