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Questions in chemistry

[Open]What is the mass of [tex]H_2O[/tex] produced when 10.0 grams of [tex]H_2[/tex] reacts completely with 80.0 grams of [tex]O_2[/tex]? A. 70.0 grams B. 90.0 grams C. 180.0 grams D. 800.0 grams

[Open]What is the electronegativity of PCl₃?

[Open]Calculate the pH of a buffer that is 0.13 M in lactic acid and 0.11 M in sodium lactate.

[Open]Water's _____ property creates positive and negative ions, which are essential for chemical reactions. a. ionization b. acidic c. basic d. cohesive

[Open]What are the top 10 facts about animal cells?

[Open]If you determined that the volume of a silver bar is 100 mL, how many atoms of silver would be in the bar? The density of silver is 10.5 g/mL.

[Open]Draw a Venn diagram and fill in the characteristics of the states of matter.

[Open]Why do ionic compounds have high melting points?

[Open]What energy transfers happen when you cook sausages on a campfire burning wood?

[Open]What were the limitations of Democritus's ideas about atoms?