This image shows a hydrothermal vent. what would geologist expect to fond around this vent?

In salt water solution,the salt is the blank

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table

Ammonium perchlorate nh4clo4 is the solid rocket fuel used by the u.s. space shuttle. it reacts with itself to produce nitrogen gas n2 , chlorine gas cl2 , oxygen gas o2 , water h2o , and a great deal of energy. what mass of nitrogen gas is produced by the reaction of 2.1g of ammonium perchlorate?