Alzheimer's disease often runs in families, but not everyone with the gene for Alzheimer's develops the disease. What most likely explains this phenomenon?

The peak wavelength for the blackbody curve of a star is in the uv range. assuming the radiation from this star can reach earth, would you be able to see it?

Which three statements represent the benefits of performing experiments using computer simulations?

1.17 mol hcl and 2.5 mol naoh react according to the equation hcl + naoh -> nacl + h2o . if the limiting reactant is hcl, determine the amount of excess reactant that remains. answer in units of mol.