1 cm? Cu
11
9 g Cu
9.5 x 1021 atoms Cu
= 1 g Cu
1 cm3 = 1 mL
1 kg
1000 g
IL
1000 cm3
9.5 x 1021
atomas
Cu
atomas
= 4.56 x 1024 goatoms
480 g *
A piece of copper has a mass of 480 g. How many atoms does the sample contain?
In the boxes above, enter the correct setup that would be used to solve this problem.
The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) ⇌ co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) → co2(g) k=1.363×10^69 b. 2 h2(g) + o2(g) → 2 h2o(g) k=1.389×10^80 c. 2co(g) + o2 (g) → 2 co2(g) k=1.477×10^90
In order to complete this lab. you will need to be familiar with some common chemistry terms. complete the chemical change puzzle and list the relevant terms and their meaning below a. rectant b. product c. supernate