Which is a scientific claim? at least 75 percent of the class will pass the physical science test today because they studied more than two hours for it. according to the star of the number-one teen tv show, crushed rosemary and olive oil spread over pimples will draw out the bacteria and prevent scarring. plants fertilized once per week with super plant food formula have been shown in testing to produce twice as much fruit as plants that are not. placing half-filled one-gallon jugs of water out on the lawn prevents moles from occupying the space underground.

Which formula can be used to calculate the molar mass of ammonia (nh3)? molar mass of n + molar mass of h 3 × molar mass of n + molar mass of h molar mass of n + 3 × molar mass of h 3 × molar mass of n + 3 × molar mass of h

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

Which terms are used to identify pure substances