Which of the following statements describes mass defect?

Balance this equation co2(g) + h2o (g) show that the balanced equation obeys the law if conversation of mass

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.