According to the host, which of these is true of the reaction between ammonia and hydrochloric acid? A.
It is considered an acid-base reaction because there is proton donation and acceptance.
B.
It is not considered an acid-base reaction because there is no hydroxide present in the base.
C.
It is not considered an acid-base reaction even though there is proton donation and acceptance.

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? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.

When making her coffee, mrs. jenkins likes to stir in some cream and sugar to give it a pleasant flavor. the ingredients, when combined like this, form a

Analyze how the four requirements for life were identified by scientists