The sum of the coefficients in the balanced equation that describes the combustion of pentane (C5H12) is .

When water dissociates, each water molecule splits into a hydroxide ion and a) h 3 o + b) a hydrogen atom c) a hydrogen ion d) h 2 o e) oh —

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate

What role does weathering have in shaping earth’s surface? a) it allows sediments to fall out of a medium. b) it sediments settle on a new surface. c) it breaks down older material into sediments. d) it transports sediments to a different location. will give brainliest, answer quickly.