Ionic and covalent bonds help arrange atoms into unique structures for proteins like hemoglobin. Why is this necessary? (1 point) a. The ionic bonds alone in a protein help determine its function

b. The structure of a protein allows it to carry out its unique function.

c. The bonds help hold the protein together but are unrelated to the function

d. The structure of the protein allows it to carry out whatever function is needed the most

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? a. the balloons both rise. the cold balloon is larger than the warm balloon. b. the balloons rise at the same rate. both balloons are the same size. c. the warm balloon expands and rises. the cold balloon shrinks and sinks. d. the cold balloon expands and rises. the warm balloon shrinks and sinks.

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity