In the reaction C5H8 + __O2 → 8H2O + 5CO2, what coefficient should be placed in front of O2 to balance the reaction?

5

8

9

no coefficient is needed

How does the state of matter affect the speed of sound

The crystallization of salt from evaporating seawater a. is an example of precipitation from a solution. b. is, in mineralogic terms, formation of a silicate mineral. c. results in hexagonal, prismatic crystals. d.

Which best describes an idea that has scientific consensus? All scientists must support the idea. Few scientists think the idea is valid Most scientists disagree with the idea O Most, but not necessarily all, scientists agree with an idea.

Consider the reaction: C + O2 rightwards arrow CO2 + 393 kJ. When 2 mol of carbon react

Where do you get the c6h12o6 and o2 that is required for this process?

What are the two main systems we use for describing acids and bases?

Why do polar covalent bonds form?

What are some conditions that might control deposition

What are four basics states of matter

For beta radiation, what stops its penetrating abilities? aluminum a piece of paper skin thin fabric