Which of the following is a homogeneous mixture?

a. sugar dissolved in water

b. oxygen and nitrogen gases in the air

c. oil and vinegar salad dressing

d. a silver mercury amalgam used to fill a tooth cavity

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What are the characteristics of a continental drift?

What type of molecule polarity exists in NH3, H2O, and HF?

How would you represent the atoms of aluminum in the gaseous phase

Arrange the metals used in this experiment (including H2 and Ag) in order of decreasing reactivity (most reactive metal first). The metals to be included are Na, Ag, Al, Ca, Cu, Fe, Mg, Pb, Sn, Zn, and H2.

A real gas behaves more like an ideal gas when the gas molecules are

How many moles are in 12.5 g of H2O

Substance which allows energy to pass through it

How are insect wings not likely to be fossilized?

True or False: A Solar eclipse occurs when Earth casts a shadow on the Moon.