Explain the difference between an atom and an ion of the same element

Which of the following is a physical property of water? a. water has a ph of 7. b. water is not flammable. c. water reacts with sodium. d. water is a liquid at room temperature.

In the past 50 years the temperature on earth has increased true or false

Question 1 Choose the letter of the correct name for each structure. CH3CH2CH2CH2CH3 pentane propane hexane

How many tons of zinc can be obtained from 976 tons of zinc ore that is 78.0% zinc carbonate?

24. Element X has five valence electrons, element Y has one valence electron, and element Z has one valence electron. Which two of these elements are most likely to have similar properties? Explain your answer.

What is the overall chemical equation for smog after the above intermediate reactions are combined?

Are iron filings a pure substance?

The positively charged particle of an atom is called a (n)

What is the volume in ml of one pound of mercury?

A reaction in which two light nuclei combine to form a heavier nucleus is termed a. fission. b. a redox reaction. c. a chemical reaction. d. fusion.