2 4.237 g of potassium bitartrate ( KH5C406(s)) are suspended in water and reacted with
sodium carbonate (Na2CO3). How many grams of sodium carbonate are needed to
react with this much potassium bitartrate?
5
2KH5C406(s) + Na2CO3(s) + 3H20(1)
CO2(g) + 2NaKH4C406.4H2O(s)
Potassium bitartrate MM = 188.18 g/mol,
Rochelle salt MM = 282.22 g/mol,
Sodium carbonate MM = 105.99 g/mol

This line graph compares the growth of plants that were kept in the sun for different amounts of time.a)  on day 7, the plants kept in the sun for 3 hours were how tall? b)  on day 7, the plants kept in the sun for 6 hours were how tall? c)    on day 10, the plants kept in the sun for 9 hours were how tall? d)  on day 11, the plant that was grown with 1 hour of sunlight was how tall? e)  based on the graph, the plant grows best in what amount of sunlight?

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.

Which of the following has wavelength longer than the wavelength of viable light? a) x rays b) gamma rays c) radios waves d) ultraviolet waves