Two models of molecules are shown. What is true about the molecules shown in the models? The one on the left has 1 carbon atom and 1 oxygen atom and the one on the right has 2 oxygen atoms and 1 carbon atom? A. They are molecules of the same substance.

B. They are molecules of two substances with the same properties.

C. They are molecules that join together.

D. They are molecules containing the same kind of atoms.

Consider the story you just read. all but one of the choices below indicate that something is living.

If there are 3.5 moles of koh, how many moles of naoh can be produced? question 1 options: a)3.0 moles naoh b)3.5 moles naoh c)1 moles naoh d)9 moles naoh

Why is it important for scientists to review and repeat the work of other scientists? 1.a scientific theory must be tested three times before it is proven. 2.the scientific method only applies to repeated experiments. 3.an experiment may have had errors that the scientists didn't recognize. 4.the results of individual scientists may be influenced by bias. 5.an experiment must be performed twice before the data can be analyzed.