Make sure you cut the chicken against the grain. To do this, look at the chicken and you will notice that the fibres mostly go in one direction. Cut through the fibres (90 degrees to the direction of the fibres). This yields the most tender pieces of chicken.
You can substitute Jasmine rice with long grain or medium grain rice. It's best to use rice refrigerated overnight because the grains dry out, making them ideal for stir-frying.
2 cups of uncooked rice will make 6 cups of cooked rice. Follow the directions on your rice packet for cooking time and method.