Whether or not they are within the same group (vertical columns) within the periodic table, determines similarity of chemical properties.
After the first 2 min the 20 g are only 10g, (1 half-life)
after other 2 more min 5g (2 half-lives)
after other 2 more min 2.5 g (3 half-lives)
after 2 more 1.25 g (4 haf lifes)
Answer:
2,200 milligrams
Explanation:
40 mg per 1 kilogram means 40 times 55 which is 2,200 mg
Option A. Exothermic reactions RELEASE energy, so the potential energy of the products will be less than the energy of the reactants.
