When measuring the length of this red line with the metric ruler provided, the first decimal place that is uncertain is:

What are fructose and glucose an example of?

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

How much would the freezing point of water decrease if 4 mol of nacl were added to 1 kg of water (kf=1.86 degrees c/(mol/kg) for water and i=2 for nacl a- 7.44 degrees c b- 14.88 c 3.72 d 1.86