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Some animals only have ___ cell.

Chemistry

1 answer:

DaniilM [7]3 years ago

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Balance this equation: Al+ HNO3 ---- H2 + Al(NO3)3

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Explanation:

Put coefficient a,b,c, and d for calculation:

a Al + b HNO3 = c H2 + d Al(NO3)3

for Al: a = d

for H: b = 2c

for N: b = 3d

for O: 3b = 9d

Suppose a=1, then d=1, b=3, c=3/2

multiply 2 to make all natural number, a=2, then b=6, c=3, d=2

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Complete the electron-dot structure of s-allylcysteine, showing all lone-pair electrons.

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