Provide a structure for the following compound: molecular mass 71; ir: 3200 (strong, broad), 2250 cm^–1; no absorptions in the 1500–2250 cm–1 range; 1h nmr: δ 2.62 (2h, t, j = 6 hz), δ 3.42 (1h, broad s; eliminated by d2o shake), δ 3.85 (2h, t, j = 6 hz).

the earth would become to overheated and everything alive on it will eventually die from overheating. plants will eventually die as well, water will evaporate, and it will be nothing but a hot planet without anything living on it.

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

it is b that is the answer.