An unknown substance was put in a container. The substance filled up the container from bottom up, taking half of the space in the container. What is most likely the state of matter of the substance?

Gas
Liquid
Plasma
Solid

The answer is d.potassium

Putting salt in vinegar water

Reaction type : double replacement hcl + lioh = h2o + licl

The population of unionid mussels decreased after zebra mussels were introduced. zebra mussels competed with the unionid mussels for food. the zebra mussels were able to displace the unionid mussels, allowing the zebra mussel population to increase  over the years. the unionid mussel population decreased because  of lack of food.