How much heat is needed to raise the temperature of 42.2 grams of Iron
from 35.0°C to 85.6°C.
CFe = 0.450 J/g°C

One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)

Word equation for k+ h2o yield koh + h2

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)