In any good experiment, the scientist needs to (fill in the blank) the hypothesis.

How does Dalton's atomic theory account for the fact that when 1.000 g of water is decomposed into its elements, 0.111 g of hydrogen and 0.889 g of oxygen are obtained regardless of the source of water?

What never change despite what planet you go to

Which statement best describes ionic bonding? A. Electrons are free to move among many atoms. B. Electrons are taken away from a full valence shell. C. Electrons are shared between two atoms. D. Electrons are transferred from one atom to another.

If you were to drop a rock from a tall building, assuming that it had not yet hit the ground, and neglecting air resistance, after 6 s: How fast (speed) would it be traveling (in m/s) ?

What does the statement "10 m/s to the north" describe?

What is a planetary nebula? a. leftover gas from a supernova explosion b. the ejected envelope of a giant star surrounding the remnant of a star c. a type of young, medium-mass star d. a planet surrounded by a glowing shell of gas e.

A train is moving 4.82 m/s when it begins to accelerate. After 24.8s it is moving 7.09m/s how far did it move in that time

List three different emotions?

The jet stream flows from east to west across the United States. True False

You are in a hot air balloon, 350 m above the flat Texas plains. You look out toward the horizon. How far out can you see--that is, how far is your horizon? The Earth's radius is about 6400 km.