2. From the drop box, what is the most basic substance in this simulation? What is its pH value?

3. What substance(s) have a pH most similar to that of water (pH 7)?

4. What two substances have the same pH value? Why might this be?

5. Being that vomit has a pH of 2.0, would you believe the human stomach be an acidic or
basic environment? Why might this be?

What is the empirical formula of vanadium 1 oxide given that 20.38 grams of vandium combines with oxygen to form 23.58 grams of the oxide

Abullet found at a crime scene may be used as evidence in a trial if the percentage of metals match to the composition of metals in a bullet from the suspect's ammunition. a forensic scientist's analysis of the bullet shows that it contains 11.9 g of lead, 0.5 g of tin, and 0.8 b of antimony. what is the percentage of lead metal in the bullet? express your answers to the one's place.

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li