You determined that Cr2O3 is the limiting reactant in the reaction below. If the reaction begins with85.00 grams of Cr2O3 and157.0 grams of silicon, how many grams of the excess reactant will be used?

What type of weathering breaks down into smaller pieces

Analysis of a compound indicates that it contians 1.04 g k, 0.70 g cr, and 0.86 g o. find its empirical formula. 1. k2cro3 2. kcro4 3. k2cro4 4. kcro3

An atom is described as a nucleus of protons and neutrons surrounded by a

If the ph of a solution is decreased from 9 to 8, it means that the select one: a. concentration of h + has increased tenfold (10x) compared to what it was at ph 9. b. concentration of h + has decreased to one-tenth (1/10) what it was at ph 9. c.

Which element has similar properties to lithium?

How large a volume is need to contain 21 grams of silver? (info: density of silver is 10.5)

How could Cl change to gain stability? lose 7 electrons gain one electron

Connie was making sodium chloride by adding an acid to an alkali. She followed the progress of the reaction with a pH sensor. At which pH would she know that the acid and alkali had completely reacted to give a salt solution?

Yttrium - 90 has a half life of 64 hours. How much of a 120g sample will remain after 128 hours?

KOH is an Arrhenius and increases the concentration of when added to water. Blank 1: