If the half life of carbon is 5720 years, and we have a sample that is 20 grams, How many years ago would the sample have been 160 grams?

When the volume and number of particles of a gas are constant which of the following is also constant

Label a-f based on the table using c for concentrated and d for dilute

For each of the following compounds, write the formula then predict whether it would be a strong, weak, or non-electrolyte when placed in di water. for the ionic compounds only, put (s) or (aq) after the forrmula formula strong, weak or non electrolyte? a calcium hydroxide b. silver carbonate c. lead(ii) sulfate d. phosphorus trifluoride e. sodium phosphide f barium sulfate g. strontium acetate h. zinc nitrate