Carbohydrates and proteins are built up from their basic building blocks by the a. removal of a nitrogen atom between each two units b. addition of a water molecule between each two units c. removal of a water molecule between each two units d. addition of a carbon atom between each two units

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

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?

What statement goes against the kinetic theory of gases