Answer: A quantitative observation
Explanation: Quantitative observations deal with numbers or amounts. As opposed to <em>qualitative</em> observations, which are observations made with the 5 senses.
Electronic configuration of Rb: 2.8.8.8.8.3
Valence electron is 3....
All tropical cyclones can produce widespread torrential rains, which cause massive flooding and trigger landslides and debris flows.
The reaction is actually endothermic because delta H is positive, indicating that it absorbing heat.