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Questions in chemistry

[Done] Is "supports combustion" a chemical or physical property?

[Done] The atomic number of nickel-60 is 28. How many neutrons does this isotope have?

[Done] Which of the following measurements has three significant figures? I. 0.0140 II. 320 III. 85,100 A. I only. B. II and III only. C. I and III only. D. I, II, and III.

[Done] A car gets 15.5 kilometers per liter of gas. Gas costs $0.43 per liter. If I drove 124 kilometers, how much money would I spend on gas?

[Done] How many electrons can be held in the first orbit (closest to the nucleus)?

[Done] Write the name of the compound: [tex]Na_2SO_3[/tex]

[Done] What role does potassium iodide play in generating oxygen?

[Done] What are the functions of gasoline, kerosene, diesel, acetone, and ethyl alcohol?

[Done] What is the capillary action of water?

[Done] How can rusting be prevented?