3 years ago

Decrire l ebullition de l eau

Chemistry

1 answer:

meriva3 years ago

7 0

L'eau se réchauffe elle s'intesifie et commnce a bouilloner ensuite L'eau s'évapore

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An objects volume can be found by adding its mass by its?

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Volume* density=MASS

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Which type of reaction does this diagram represent?

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Nuclear fission

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Because the little particles are being spread out and the two elements are broken apart

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Amino acids are the building blocks of proteins. The simplest amino acid is glycine (H2NCH2COOH). Draw a Lewis structure for gly

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Answer:

Explanation:

The lewis structure (indicating all the atoms and patterns provided as hint in the question) of glycine can be seen in the attachment below. While the chemical structure of glycine can be seen below

H₂N - C - C =O

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H OH

The structure (of glycine) above provides a "fair idea" of how the lewis structure will be.

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3 years ago

I really need help with this. Be serious. If you answer something random just for the points I will report you to brainly.

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2 years ago

Iron (III) oxide reacts with solid carbon in the followed reaction: 2Fe2O3(s) + 3C(s) → 4Fe(s) + 3CO2(g) What mass of Fe2O3 is n

Veseljchak [2.6K]

953.6 g of iron (III) oxide (Fe₂O₃)

Explanation:

We have the following chemical reaction:

2 Fe₂O₃ (s) + 3 C (s) → 4 Fe (s) + 3 CO₂ (g)

We calculate the number of moles of CO₂ by using the following formula:

pressure × volume = number of moles × gas constant × temperature

number of moles = (pressure × volume) / (gas constant × temperature)

number of moles of CO₂ = (2.1 × 100) / (0.082 × 300)

number of moles of CO₂ = 8.54 moles

Taking in account the chemical reaction we devise the following reasoning:

if 2 mole of Fe₂O₃ produces 3 mole of CO₂

then X moles of Fe₂O₃ produces 8.54 mole of CO₂

X = (2 × 8.54) / 3 = 5.69 moles of Fe₂O₃

number of moles = mass / molar weight

mass = number of moles × molar weight

mass of Fe₂O₃ = 5.69 × 160 = 953.6 g

Learn more about:

number of moles

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3 years ago

Read 2 more answers