Aperson is told to take 1.25mg of vitamin d daily .how many 0.500-mg tablets should this person take ?

6. what does the symbol ah stand for? o one calorie given off by a reaction the specific heat of a substance the heat capacity of a substance the heat of reaction for a chemical reaction

How do i complete this electrolysis of water lab? i’m at home, so i don’t have the materials, and the lab didn’t properly work and was incomplete at school.

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0