SCIENCE [20 Minutes]
Cam completed a lab that involved placing samples of different ionic salts into a flame and observing the color produced.
He noticed that he saw three main colors in the experiment, despite using eight different salts (Copper chloride, sodium
chloride, potassium chloride, copper sulfate, sodium carbonate, potassium carbonate, copper nitrate, sodium sulfate).

Why does a red shoe appear red in daylight

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size

A650 ml sodium bromine solution has a bromide ion concentration of 0.245 m. what is the mass (g) of sodium bromide in solution? a) 103.b)0.00155.c)16400.d) 16.4.e) 0.159