Which compound has atoms sharing 2 electrons

N2
CO2
BR2
CCI4

Perform the following mathematical operations and report the answer to the appropriate number of significant figures 5.87998 + 3.100

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?

Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *