vidence: X f2.app.edmentum.com/courseware-delivery//ua/925861/45307635/aHR0cHM6Ly9mMI5hcHAUZWRtZW50dWouY29tL2xlYXJUZX < ☆ Nina Richard-Grap... GThe Rise and Declin... New Tab hemical Analysis of Evidence: Tutorial Space used (includes formatting): 0/15000 Activity Given below are descriptions of chemical tests and their observations. Perform online research to predict the elements present in the compound. 1. Test: A small amount of the sample is mixed with cupric oxide in a test tube. The test tube is heated and the issuing gas is passed through a saturated solution of baric hydroxide. A 23 of 26 Observation: The solution turns cloudy. 2. Test: A small amount of sample is added to sodium metal in a fusion tube and heated. The test tube is then plunged in to a distilled water bath. The fusion tube breaks. The content of the fusion tube is then dissolved in the distilled water, using a glass rod. The solution thus obtained is bolled and filtered. Freshly prepared solution of sodium nitroprusside is added to about 1 milliliter of the filtered solution. 3. Observation: The color of the solution turns violet. 4. Test: A compound is fused with sodium peroxide and extracted with water. This solution is heated with nitric acid and ammonium molybdate solution. Observation: A yellow colored precipitate results. BIUX² X₂ 15px 15 16 3 CE Submit Save & Nov 22
