You investigate the density of a chemical solution and get the results: 3.4 g/mL, 3.6 g/mL, and 3.7 g/mL. If the true density of the solution is 4.4 g/mL, what can be said about your results?

An alkaline battery produces electrical energy according to the following equation. Zn (s) + 2 MnO2 (s) + H2O (l) Zn (OH) 2 (s) + Mn2O3 (s) (a) Determine the limiting reactant if 17.5 g Zn and 31.0 g MnO2 are used.

Which atomic property is different in each isotope of an element?

If an electron fell to a lower orbit or energy level, energy would be a. created. b. emitted. c. absorbed. d. transferred.

Only 10% of energy available at each trophic level moves on to the next level. What happens to the other 90%

What is the volume of 1.2 moles of water vapor at STP?

For the reaction H2SO4 + 2Na2OH4 - > Na2SO4 + 2H2O If you want to make 5 moles of Na2SO4, how many miles of H2SO4 do you need? A) 5 B) 10 C) 12 D) 2

Which element from the periodic table has four valence electrons

Describe the structure and bonding of a thermosoftening polymer and explain why they melt when heated.

How many F atoms are there in 0.035 mol CF4

What type of reaction does the equation below represent? N2 + 3H2 - > 2NH3 a. synthesis b. decomposition c. single replacement d. double replacement