Type your response in the box. Think about how sedimentary rocks form. Can you determine which fossils in the image are the oldest and which
fossils are the youngest? Explain your answer.
layer A
layer B
layer

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

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

If a sample of radioactive isotopes takes 600 minutes to decay from 400 grams to 50 grams, what is the half-life of the isotope?