A hammer can be used to see how a mineral breaks. If you observe square chunks of the mineral when broken, what can you conclude? a
The mineral is soft.

b
The mineral is hard.

c
The mineral has cleavage.

d
The mineral does not have cleavage.

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

An empty fuel tank can still contain and therefore can be even more dangerous than one full of liquid fuel.

At element makes up all organic compounds?