Silicon nitrate is made by combining Si and nitrogen gas at high temperature. How much Si is needed to react with an excess of nitrogen gas to prepare 125g of silicone nitrate if the percent yield of the reaction is 95%

Which statement describes how phase changes can be diagrammed as a substance is heated? the phase is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the phase is on the x-axis. the time is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the time is on the x-axis.

If a plot weight (in g) vs. volume (in ml) for a metal gave the equation y= 13.41x and r^2=0.9981 what is the density of the metal?

Asap! how do you lengthen a pattern piece? (family and consumer science, sewing)