What is the term for increasing speed?

In 2002, the rare earth elements mine in mountain pass, california was closed because

What’s the theoretical yield of solid lead

Which aqueous solution of ki freezes at the lowest temperature? 1) 1 mol of ki in 500. g of water 2) 2 mol of ki in 500. g of water 3) 1 mol of ki in 1000. g of water 4) 2 mol of ki in 1000. g of water