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

Asample of the male sex hormone testosterone, c19h28o2, contains 3.88×10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line