Predict the missing component of predict the missing component of each reaction. ? + 2NaBr + 2NaCl + Br2
CH,+202 → ?
4
CHO
OHCI
O Cl2
Na
o C2H2 + CO2
O CO2 + 2H20
O C + 2H20
C
O HBr

Nonmetal halogen family atmoic mass 35

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?