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3 years ago

Please answer

Chemistry

1 answer:

r-ruslan [8.4K]3 years ago

6 0

Answer:

183.6kg

Explanation:

Given parameters:

Specific heat of the substance = 0.246J/g°C

Change in temperature = 15.5°C

Amount of energy released = 700J

Unknown:

Mass of the sample = ?

Solution:

To solve this problem we used the energy equation:

H = m c Δt

H is the energy released

m is the unknown mass

c is the specific heat

Δt is the change in temperature

Now insert the parameters and find m;

700 = m x 0.246 x 15.5

700 = 3.8m

m = 183.6kg

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Answer:

The spontaneous reactions are:

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Explanation:

Diastereomers (sometimes called diastereoisomers) are a type of a stereoisomer.[1] Diasteoreomers are defined as non-mirror image non-identical stereoisomers. Hence, they occur when two or more stereoisomers of a compound have different configurations at one or more (but not all) of the equivalent (related) stereocenters and are not mirror images of each other.[2] When two diastereoisomers differ from each other at only one stereocenter they are epimers. Each stereocenter gives rise to two different configurations and thus typically increases the number of stereoisomers by a factor of two.

2. the addition of bromine to the trans and

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H H

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density 0.970 g/mL density 1.011 g/mL

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In both cases, the nucleophilic double bond undergoes an electrophilic addition reaction

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drawn). The result is a trans dibromide, as shown in the equation below:

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