Scrie ecuatiile pentru urmatoarele ecuatii chimice a) zinc+acid sulfuric
b)sulfat de magneziu+clorura de bariu

Imagine that you have produced several versions of lactase, each of which differs from normal lactase by a single amino acid. describe a test that could indirectly determine which of the versions significantly alters the three-dimensional shape of the lactase protein.

If the element whose electric configuration ends in the d sublevel, the element is calssified as? a.inner transition b.noble gases c.representative d. transition

In which phase(s) do the molecules take the shape of the container?