What term refers to elements in group 18 that only react with other elements under special laboratory conditions? noble gases

metalloid

nonmetals

halogen

Much of the general structure and physical properties of the interior of the earth are inferred from: a)deep oil and gas bore holes b)geologic investigations c)analysis of seismic waves d) study of volcanoes

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

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?