Why is oxygen called a gas. Give two reasons.,

A mixture of molten rock and gases that forms underground is called

If an unknown element has a mass number of 14 and 7 neutrons how many protons are there

How are large polymers formed? by repetitive combinations of simple subunits by the addition of halogens to a small molecule by combining a few different and larger molecules by combining many different and smaller molecules

Will ag2so4 precipitate when 100 ml of 5.0*10-2 m agno3 is mixed with 10 ml of 5.0*10-2mna2so4 solution?

When dissolved substances are spread evenly throughout a mixture it is called a

A baker touches a pie right after taking it out that of me which statement best explains why the pie feels hot

A scientist discovers a new type of polymer. What must be true about this polymer? A. It contains carbon atoms arranged in a ring structure. B. It has double bonds between all the carbon atoms. C. It contains molecules of many different types. D.

A line in the lyman series of hydrogen has a wavelength of 122 nm. from what state did the electron originate?

What are the products of photosynthesis? A. Glucose and oxygen B. Oxygen, solar energy, and glucose C. Carbon dioxide, water, and solar energy D. Hydrogen, oxygen, and carbon

A sample of a substance that has a density of 0.824 g/mL has a mass of 0.421 g. Calculate the volume of the sample.