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2 years ago

Polymer formed from methylene diphenyl isocyanate

Chemistry

1 answer:

marin [14]2 years ago

5 0

Answer:

Polymeric MDI is a mixture of. monomeric MDI as well as larger molecular weight oligomers of MDI, and is a brownish. liquid at room temperature and may have a slight odor. Commercial MDI products are. often mixtures of monomeric and polymeric MDI and can contain other additives as well.

Explanation:

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NaOH(aq) + MgSO4(aq) →

Cerrena [4.2K]

Answer:

if balanced reaction then 2 NaOH + MgSO4 → Mg(OH)2 + Na2SO4

Explanation:

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2 years ago

Explain in complete sentences how a convection current is created.

Aleks04 [339]

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Hope This Helps You!
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3 years ago

Determine how much energy is needed to change 50 g of liquid water at 100°C to steam.

marin [14]

Answer:

$Q=113,000J$

Explanation:

Hello there!

In this case, since the vaporization process is carried out in order to turn a liquid into a gas due to the addition of heat, we can use the following heat equation involving the heat of vaporization of water or any other substance:

$Q=m*\Delta _{vap}H$

Thus, since this heat of vaporization for water is 2259.36 J/g, we plug in this amount to obtain the total energy for this process.

$Q=50*2259.36 J/g\\\\Q=113,000J$

Which is positive due to the necessity of heat.

Regards!

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2 years ago

Can anybody plz answer

Lelechka [254]

Answer: heat

Other indicators: color change, odor, gas, temperature change.

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2 years ago

Answer this question:

almond37 [142]

Answer:

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2 years ago