Unknown element X combines with oxygen to form the compound XO2. If 44.0 grams of element X combines with 8.00 grams of oxygen, what is the atomic mass of element X?

A. 16 amu

B. 44 amu

C. 88 amu

D. 176 amu

E. 352 amu

Is flammability an example of physical property

Once a spontaneous process or reaction begins, it will continue to proceed on its own. This will result in a lower energy state and the process occurs naturally. A. An example of a spontaneous process is an ice cube melting.

What do conductivity and reactivity have in common

Which statement is most accurate A. Cold soda will taste less bubbly, because the solubility of carbon dioxide in water is lower at lower temperatures. B.

How does breaking up a solid speed dissolving in a liquid? A. increases the surface area B. decreases the surface area C. decreases the pressure D. increases the pressure

Where does Celsius boil

In physical changes, the atoms or molecules that compose the matter do not change their identity, even though the matter may change its appearance.

The electrolyte in a typical wet storage cell or battery is a mixture of water and A. lead. B. ammonium chloride. C. sulfuric acid. D. zinc.

Express 1.5 yards in cm

22. If one is traveling at 55 mi/h, how many meters will one travel in 42.3 minutes?