When 425g of lead pellets are added to a graduated cylinder the water level rises from 25.0mL to 62.5mL so what is the density of the lead pellets?

What type of reaction is shown by this equation? C6H8O7 (aq) + 3NaHCO3 (aq) - - > 3 H2O (l) + 3CO2 (g) + Na3C6H5O7 (aq)

Why does the water volume in the graduated cylinder match the spheres volume?

When 4.0 mol H2 reacts with excess O2, 3.0 mol H2O are actually produced, what is the percent yield of the reaction? 2H2 + O2 - -->2H2O A. 25% B. 50% C. 75% D. 100%

Which statement describes the general process of diffusion? Molecules move from inside of the cell to outside of the cell. Molecules start out unevenly distributed and end up evenly distributed.

When 2.85 moles of chlorine reacts with excess tin, how many moles of tin (IV) chloride are formed?

What compares a law and a theory?

Explain what domain would best be represented by the "?" in the diagram. A) Eukarya because the organisms are all eukaryotic. B) Eukarya because the organisms are all prokaryotic. C) Bacteria because some of the organisms are autotrophs.

If you are eating a hamburger, it is an example of a consumer eating another consumer. a) true b) false

What mass of NaNO3 is needed to make 3.5 L of 2.2 M solution? (Na = 23.0g, N=14.0g, O=16.0g) Explain in steps

In which group do all atoms have seven valence electrons in the ground state?