Asealed flask contains 1.3 x 10^25 molecules of co2. how many moles of co2 are in the flask?

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17

Amixture with the same composition throughout is!

The equation below shows the reaction of zinc with hydrochloric acid (hcl). zn (s) + 2 hcl (aq) —> zncl2 (aq) + h2 (g) what will happen if the concentration of hcl is decreased? a. more zncl2 will be produced. b. the reaction rate will slow down. c. the hydrochloric acid will become more acidic. d. the reaction will produce water instead of hydrogen gas.