1. water boils at 100°c. and oil? does oil boil at 100°c. no, most oils boil at 200-300°c. 2. iron reacts with oxygen (to from rust). and gold? no, pure gold does not react with. oxygen. 3. elements in the same group have similar properties. and in the same period? yes they have some similar properties. 4. oxygen reacts with hydrogen ( to from water). and argon (ar)? argon does not react with oxygen, or water. 5. maria curia made important scientific discoveries. and albert einstein? yes, he discovered the theory of relativity, e=mc2. 6. chemists work in laboratories. and physicists? yes, they do.