The element oxygen has three occurring isotopes, with 8,9,10 neutrons in the nucleus, respectively. Write the full chemical symbols for these three isotopes.

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Will platinum (pt) metal react with a lead (ii) nitrate solution?

What are various methods of obtaining energy and what are some environmental consequences

Give an example for each of the following terms: (a) matter, (b) substance, (c) mixture.

What is the oxidation state of strontium (Sr) ?

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.

The tyndall effect is used to detect A: suspensions B:liquid solitions C:tyndalls D:colloida