Which of the following is considered a hypothesis as opposed to an observation

In a double replacement reaction copper (II) chloride combines with sodium nitrate. When a student combines 3 grams of copper (II) chloride react with 4 grams of sodium nitrate, how much sodium chloride is produced?

A block of wood does not allow any light to be transmitted through it. The block of wood can best be described as A. transparent. B. opaque. C. translucent. D. invisible.

Which state of matter had the greatest distance the individual particles?

When this reaction is coupled to the conversion of graphite to carbon dioxide, it becomes spontaneous.

What is the process in which nutrients move into the bloodstream?

In which changes of state do atoms lose energy?

Can you live without body tissue? This is a yes or no question, no explaining required, but you can add it if you want. : D

According to the graph, which activity has used the largest amount of water over the past twenty years?

Tiffany leaves balloons filled with helium gas inside her car in on a sunny day when she returns to her car some some of the balloons are much larger and a few have popped explain what happened

If the pH indicator bromothymol blue was added to the nitric acid solution, it's colour would be?