Can someone reword this? a magnetic substance has magnetic fields. these fields start at the north pole wrap around the magnet, and terminate at the south pole of the magnet. all magnetic substances have north and south poles

It's basically saying that everything magnetic has two magnetic poles. They start at the north pole and end at the south pole. All magnetic substances have north and south magnetic poles.

rosa was looking for patterns to predict the products of chemical reactions. she recorded three similar decomposition reactions in the table.she should record 2licl + 3o2.

in the last row of the table. it is the thermal decomposition of chlorate lithium, hence, she should record these products as: lithium chloride ( 2licl ) and oxygen ( 3o2 )   2 > 2 licl + 3o2.