3 years ago

3.04 Quiz: Chemical Reactions Please help me

1 answer:

5 0

most of them are chemical because they could not go back to there original form like if you cut paper that is physical if you burn the paper that would be chemical because it would not longer be paper

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When a parent has alleles for a dominant trait, what traits show up in the offspring?

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Try putting this in biology category not chemistry so more ppl can help :)

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3 years ago

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Mekhanik [1.2K]

Answer:

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3 years ago

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iren2701 [21]

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3 years ago

Calculate the number of moles 3.16 g of KMnO4 32.33 g of K2CrO4 100 g of KHCO3

kvasek [131]

The number of moles:
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1 mole of $KMnO_{4}$ - 158g.
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The number of moles:
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1 mole of $K_{2}CrO_{4}$ - 194g.
x moles of $K_{2}CrO_{4}$ - 32.33g.
$x=\frac{1\ mole*32.33g}{194g}=\frac{32.33}{194}=0.17\ mole$

The number of moles:
100g of $KHCO_{3}$
1 mole of $KHCO_{3}$ - 100.1g.
x moles of $KHCO_{3}$ - 100g.
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Greetings,
n00nst00p :)

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3 years ago

Calculate the mass of water produced when 8.94 g of butane reacts with excess oxygen.

Tamiku [17]

Yooooo this is my answer

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2 years ago