2. Which one of the following salts can be prepared from its elements by direct synthesis? A. Magnesium chloride
В. Copper (11) carbonate.
C .Potassium sulphate
D. Lead (II) nitrate

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons

Imagine that twenty i.u.’s of enzyme z were catalyzing the above reaction for one minute, under vmaxconditions, in a 3.00 ml assay volume. the assay is buffered with 20 mm phosphate buffer, ph 7.60. what will the ph be at the end of that one minute?

What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml?