3. study record b. what can you say about the age of layer c from your data and observations?

How air particles exert a pressure on the inside of the balloon

What is the formula of the ionic compound composed of calcium cations and chloride anions

When hydrogen peroxide (h2o2) is added to potassium iodide (ki) solution, the hydrogen peroxide decomposes into water (h2o) and oxygen (o2). the chemical equation for the decomposition reaction is: 2h2o2—> 2h2o + o2. what is the role of the potassium iodide in this reaction? a. reactant. b. product. c. precipitate. d. catalyst.