Olivia investigated different kinds of chemical changes using substances she found in her kitchen so she could see these changes, which of the following things will she NOT see happen? a. new bonds form

b. existing bonds break

c. new substances form

d. changes dont effect matter

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.

What is the number of moles in 15.0 g ash3?

Heat is the total potential energy of a substance that can be transferred. true false