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3 years ago

11.

Chemistry

2 answers:

grin007 [14]3 years ago

6 0

Applying the conservation of mass:

Mass during bombardment:
242 (curium atom) + 4 (alpha particle)
= 246

This must equal the mass after bombardment:
1 (neutron) + x (unknown product)

246 = 1 + x
x = 245

The product is Californium-245

OverLord2011 [107]3 years ago

4 0

Curium-242 when bombarded with an alpha particle( ₂He⁴),two products are formed,one is neutron and other one is californium - 245.

²⁴²Cm₉₆ + ⁴He₂ -----> ²⁴⁵Cf₉₈ + ¹n₀

total mass number = 242 + 4(left side) = 245 + 1 (right side)

total atomic number = 96 + 2(left side) = 98 + 0 (right side)

Since the other product must have atomic number 98 its californium and it must have mass number 245(as total mass number must be same on either sides),the correct option is Californium - 245.

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3 years ago

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3 years ago

The rate of disappearance of HBr in the gas phase reaction 2 HBr(g) → H2(g) + Br2(g) is 0.140 M s-1 at 150°C. The rate of appear

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Explanation:

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