A group of students combined different substances together during several experiments. Their observations are recorded on the chart below. 1. A blue liquid and a yellow liquid were mixed and it turned green

2. A solid substance dissolved in a clear liquid

3. Two room temperature liquids were mixed and the temperature increased

4. Two different liquids were mixed and began to separate and layer in a beaker

In which experiment did a chemical reaction likely occur?

1
2
3
4?

the abdomen (less formally called the belly, stomach, tummy or midriff) constitutes the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates. the region occupied by the abdomen is termed the abdominal cavity. the stomach secretes acid and enzymes that digest food. ridges of muscle tissue called rugae line the stomach. the stomach muscles contract periodically, churning food to enhance digestion. the pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.