12. Decide which of the following is the best observation. The dog ate the bone hiding under the tree.

The dog ate the bone hiding.

The dog ate the bone.

The dog ate the bone hiding under the shady tree.

Problem page gaseous ethane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water . if of water is produced from the reaction of of ethane and of oxygen gas, calculate the percent yield of water. be sure your answer has the correct number of significant digits in it.

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

Which of the following is not true about the atomic model of substances?