2: During the double replacement reaction of Calcium bromide and Potassium hydroxide you finish with 32.5 moles of Potassium bromide. How many moles of Calcium bromide must you
have started with?
CaBr2 + KOH —> mol KBr. +__

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

Astudent completes a titration by adding 12.0 milliliters of naoh(aq) of unknown concentration to 16.0 milliliters of 0.15 m hcl(aq). what is the molar concentration of the naoh(aq)? 1)5.0 m 2)0.20 m 3)0.11 m 4)1.1 m