21. Identify which statement below is a hypothesis, and explain why. How could you determine whether the hypothesis is correct?
a. Ocean water is too salty.
b. Water heats faster if it contains salt.
C. Space probes have discovered small amounts of water on the moon.

When the pressure that a gas exerts

Consider the point on the plot where 10.0 g of naoh have been added. what amount of naoh, in moles, has been added? 0.308 mol fecl3 initially present

9. write the chemical equation for the following word equations. include symbols for physical states in the equation. a. solid zinc sulfide + oxygen gas -> solid zinc oxide + sulfur dioxide gas b. aqueous hydrochloric acid + aqueous barium hydroxide -> aqueous barium chloride + water