7 Draw your observations in the box below. Iron nail any iron material) in cloth exposure to air/ oxygen (or dry made made before Iron nail ary iron material) exposure to air / oxygen Iron nail (or any material) in dry cloth hours exposure to air/ oxygen iron made after 48 Iron nail (or any iron made material, in wet cloth after 48 bours exposure to air / oxygen Guide Questions: 1. What are the properties of iron nails before exposure to oxygen? 2. What happened to the materials when they are exposed to oxygen? 3. What change took place? 4. Describe the changes that happen in iron nails when they are exposed in oxygen. 5. What do you call the process of exposing the iron nails placed in wet cloth after 48 hours that resulted to change in appearance of iron nails? 6. Are there new products formed after each changes?
drowning po hindi sulat or pwede din po picturan na lang niniyo . paki sagot ng tama​