Determine if the example of symbiosis below describes mutualism, commensalism, or parasitism. Cattle with cattle egrets Cattle stir up insects as they eat grass Egrets hang around and eat insects

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

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

From the options provided for each element below, choose the properties that it may have based on its location in the periodic table fluorine (f): highly reactive nonmetal shiny a conductor