Achemical reaction is done in the setup shown, resulting in a change of mass. what will happen if the same reaction is done in a sealed container that is placed on the electronic balance?

Iput 40 points on !i need an a or my mom is gonna kill me! 1. what three characteristics does grain perfect fabric have? 2. what do you need to know to identify your pattern layout on the guide sheet? 3. define: pressing 4. define: interfacing 5. define: design seam 6. when should you preshrink your fabric?