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olya-2409 [2.1K]
3 years ago
12

Please help it’s due asap I WILL GIVE BRAINLIEST

Chemistry
1 answer:
inna [77]3 years ago
4 0
I think it’s number 5 and number 9 hopes this helps.
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If three neutrons are produced when a neutron bombards a U- 235 atom, determine the second fission product isotope when the firs
alexira [117]

Explanation:

235 U92 + 1n0 --> A + B + 3 1n0

when A = ;

(a) xenon-133

Mass number of B = 235 + 1 - 133 -3 = 100

Atomic number = 92 - 54 = 38

Element = Sr - Strontium

(b) barium-144

Mass number of B = 235 + 1 - 144 -3 = 89

Atomic number = 92 - 56 = 36

Element = Kr - Krypton

(c) cesium-143

Mass number of B = 235 + 1 - 143 -3 = 90

Atomic number = 92 - 55 = 37

Element = Rb - Rubidium

(d) tellurium-137

Mass number of B = 235 + 1 - 137 -3 = 96

Atomic number = 92 - 52 = 40

Element = Zr - Zirconium

(e) lanthanum-146

Mass number of B = 235 + 1 - 146 -3 = 87

Atomic number = 92 - 57 = 35

Element = Br - Bromine

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4 years ago
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a 1.00litre vessel contains 0.215 mole of nitrogen gas and 0.0118 mole of hydrogen gas at 25°C. determine the partial pressure o
stepladder [879]

Answer:

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2 years ago
Chemical Formula NH3 Element Element 1 Element 2 Element 3 Color 1 Color 2 Color 3​
Alik [6]

Answer:

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3 years ago
A compound that present in many foods has the formula c44h86o8np. to which class of molecules does this compound belong? explain
Semmy [17]

Answer : Lipids.

Explanation : The compound molecule of C_{44}H_{86}O_{8}NP is a compound called as MMPE. MMPE stands for monomethylphosphatidylethanolamine. It belongs to the class of lipids and is widely present in many food.

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4 years ago
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