Which of the following is an example of an observation? A. Adding numbers in order calculate the mean.
B. Noting what happens the color of a piece of steel when it is heated.
C. Drying socks in a clothes dryer
D. Placing smelly socks in the washing machine.

For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)

Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. a solution containing 3.50 g of sodium carbonate is mixed with one containing 5.00 g of silver nitrate. how many grams of sodium carbonate, silver nitrate, silver carbonate, and sodium nitrate are present after the reaction is complete?

‘which reaction would most likely require the use of an inert electrode?