On the change torperature and precio formation
Rectant Hydrogen peroxide
Reactant 2 Petua
Properties Observations
Mase
Color
Temperature
pH
Precipitate
Reactant Ammonium nitrate
Reactant water
Properties
Mass
Observations
Color
Temperature
pH
Precipitate
Reactant 1 - Silver nitrate
Reactant 2 = Hydrochloric acid
Properties Observations
Mass
Color
Temperature
pH
Precipitate

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.