The atomic theory was proposed as early as 400 B. C. by Greek philosophers. Their hypothesis was not proven until much later. What is the main reason the Greek theory did not stand up over time?

Can beans grow inside water

Imagine if you are given a mystery element

What is the scientific method? O A. An organized way to test scientific ideas O B. A formula for analyzing scientific data O C. A plan for forming a scientific hypothesis D. A technique for testing a scientific theory

Describe the most likely changes in the size and shape of individual particles of sediment as they are transported sownstream by the battenkill and hudson rivers

A janitor comes across a spilled substance on the floor of a high school chemistry lab. He wants to make sure the liquid is neutral before he cleans it up. What would be safest to add to the puddle? A. Pour on a base B. Pour on a buffer C.

What is the concentration of Sr2 + in a saturated solution of SrSO4? SrSO4 has a Ksp of 3.2 x 10-7. 2.9 x 10-7 M 5.7 x 10-4 M 3.2 x 10-7 M 1.0 x 10-13 M

A binary compound created by reaction of nitrogen and an unknown element E contains 30.46% N and 69.54% E by mass. If the formula of the compound is N2E4, calculate the atomic mass of E.

How does the heat flow in a pot

In which medium would light have the longest wavelength?

Which type of organism can experience a mutation?