PLEASE HURRY You discover a substance that is made of 10.6 g of Carbon and 4.4 g of Hydrogen.
(Use this to calculate empirical formula.)

The molar (molecular mass) of the compound is 68.204 g/mol.
(Use this when solving for molecular formula.)

What is the percent composition of this substance? (Make sure you percent has two (2) decimal places.)

What is the empirical formula of your substance? (Do not worry about making the numbers subscript).

What is the molecular formula of your substance? (Do not worry about making the numbers subscript).

please explain your answers

What are the three major branches of natural science? • earth and space science, life science, physical science •earth and space science, physical science, chemistry •physical science, life science, chemistry •life science, chemistry, physics

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 of these statements explains the difference between nuclear binding energy and the strong nuclear force ?