Nitrogen gas and Fluorine gas combine to form nitrogen fluoride. a. Write the chemical formula for this reaction with correct formulas for each atom/molecule.
b. Balance the equation.
c. What type of chemical reaction is this? (synthesis, decomposition, single displacement,
double replacement or combustion)
d. How many molecules of nitrogen fluoride would be made from 3.29 grams of Nitrogen gas
and an excess of fluorine?

Substance x has a fixed volume, and the attraction between its particles is strong .substance y had widely spread out particles and can be compressed what can most likely be concluded about these substances

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?

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