Which of th following represents a synthesis reaction? a)
2NaCl
2Na + Cl2
2 KOH + H2
b) 2 K + 2 H20
c) 3 Ba + N2
d) Na2CO3 + BaCl2
Ba3N2
2 NaCl + BaCO3

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.

‘which reaction would most likely require the use of an inert electrode?

Scientists have developed an explanation of a phenomenon from several verified hypotheses. the explanation has been confirmed through numerous experimental tests. which option best describes this explanation? a. scientific lawb. research questionc. hypothesisd. scientific theory