8. If the temperature of a piece of steel decreases, what happens to its density? The density does not change.
The density increases.
The density decreases.
The density first increases, then decreases.

The mass has escaped into a gas which you can not see so the law stays true.

Conservation efforts have been effective in "increasing the number of endangered species, reducing all the negative impacts of human activity, and preserving wildlife habitats".hope my answer has you : ) 

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