identify the limiting reactant when 1.00 g of Si reacts with 0.75 g of N2 in the following equation: 3Si + 2N2 - Si3N4options are , Si, N2, si3n4, n4

Can someone me with these questions plz.

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?