Betty placed an unknown powder in a zip lock bag. When she added water to the bag, the powder bubbled, and it disappeared. When the bubbling stopped, the bag contained a clear liquid and a lot of gas.What is the MOST OBVIOUS indicator a chemical reaction occurred?(1 point)Responses The powder changes color.The powder changed color.The powder mixed with the water.The powder mixed with the water.There was a change in temperature.There was a change in temperature.A gas was formed.
