2. Circle the main word in the highlighted phrases in the sentences below. Identify the type of the phrases. a. Our neighbour is very popular
b. She is a famous Nepali actress.
c. The students of Class VIII are requested to report to the principal by the
afternoon.
d. I felt extremely delighted to meet my favourite sportsperson.
e. Who in this class can answer my questions very quickly?

How have the competing explanations' experiments on atoms affected the development of the atomic model?

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 2 options: 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 cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.

(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present