Californium is a transuranium element produced by artificial transmutation of curium. Which of the following is the correctly balanced
nuclear reaction? *
242
Cm +
96
А
$243 cf +
on
98
242
B
96 Cm + -je
je →
241
Cf +
98
be
c 242 Cm + 1 He → 245 Cf + ón
D
242
96
Cm + He
→ 295 Cf + be
245
98

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)