Fluorine-21 has a half-life of approximately 5 seconds. If you start with 50 grams, how much will remain after 10 seconds ?

Compare the equilibrium constants for the systems shown in the table. which favors products the most? which favors products the least? rank these systems in order from most to least in terms of favoring products rather than reactants. d > b > a > c c > a > b > d b > c > d > a a > d > c > b

Write the formula for the following chemicals. 7. e. trinitrogen tetraoxide a calcium phosphate f. magnesium acetate b. potassium sulfide g nickel(iii) cyanide c carbon dioxide h. silver sulfate d. cobalt(ii) chloride

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at