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gizmo_the_mogwai [7]
3 years ago
9

Arturo says that some plastics are made by chemically joining the same molecule to itself. Ida says that some plastics are made

by chemically joining different molecules in an alternating pattern. Who is correct?
Chemistry
2 answers:
marin [14]3 years ago
4 0

Answer:

iad

Explanation:

cause you can use all different types of things to make plastic

Levart [38]3 years ago
3 0
Iad
Hopefully this help!!
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O condutor do comboio turístico onde o Francisco viajava a 36 km/h viu um animal da estrada e iniciou uma
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3 0
4 years ago
g How many moles of NaOH are present in a sample if it is titrated to its equivalence point with 44.02 mL of 0.0885 M H2SO4? 2Na
Lisa [10]

Answer:

n_{base}=3.90x10^{-3}molNaOH

Explanation:

Hello!

In this case, since the sulfuric acid and sodium hydroxide react in a 1:2 mole ratio, given the reaction, we realize they have the following mole ratio at the equivalence point:

2*n_{acid}=n_{base}

Which in terms of concentrations and volumes is:

2*M_{acid}V_{acid}=n_{base}

Thus, we can plug in the volume and concentration of acid to find the moles of base:

n_{base}=0.04402L*0.0885\frac{mol}{L} \\\\n_{base}=3.90x10^{-3}molNaOH

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8 0
3 years ago
Why is sodium sulphate hemihydrate called as "Plaster of Paris"?
Inga [223]
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3 0
4 years ago
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Grade 11 chemistry what happen when n hexane is heated at 600 degree celcius in pressure of a cr2O3 catalyst?
Nonamiya [84]

Answer:

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8 0
2 years ago
Solving stoichiometry problems that involve mass Now that you know the molar masses of the relevant compounds, you are ready to
Shalnov [3]

14.85 g of water

Explanation:

Calculate the mass of water produced when 9.56 g of butane reacts with excess oxygen.

Here we have the full oxidation of butane (C₄H₁₀) which produce carbon dioxide and water.

C₄H₁₀ + (13/2) O₂ → 4 CO₂ + 5 H₂O

number of moles = mass / molecular weight

number of moles of butane = 9.56 / 58 = 0.165 moles

Now, taking in account the chemical reaction, we devise the following reasoning:

if         1 mole of butane produces 5 moles of water

then    0.165 moles of butane produces X moles of water

X = (0.165 × 5) / 1 = 0.825 moles of water

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mass of water = 0.825 × 18 = 14.85 g

Learn more about:

oxidation of hydrocarbons

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