No helium needed! E-Z Balloon Sticks and Balloon Cups seal and hold air-filled latex or foil balloons upright eliminating the need for hand-tying of knots. Use with 9 to 17 inch latex balloons or 18 to 20 inch foil balloons.
1 Open the return file in T2Express software first. 2  On page 1 of T2, check the checkbox to indicate request of re-assessment for changes.3  On page 9 of T2, describe what changes are made to the T2 return. Open the return file in T2Express software first. 2  On page 1 of T2, check the checkbox to indicate request of re-assessment for changes.
1. Bubble the gas through limewater. The most effective way to test for COÂ² is to bubble the gas through lime water, a diluted solution of calcium hydroxide (slaked lime). When you bubble carbon dioxide through the solution, it forms a solid precipitate of calcium carbonate â chalk or limestone.Calcium carbonate is insoluble in water.. Bubble the gas through the limewater. Half-fill a test tube with limewater â then boil it. Use a delivery tube to pipe the contents of the COÂ² sample test tube directly into the boiling limewater. You can use a flexible pipe or a (metal) straw as a delivery tube, if nothing better is around.