2 years ago

Select the correct answer.

Chemistry

1 answer:

Pavel [41]2 years ago

8 0

Answer: E. $\text{CH}_{4}+2\text{O}_{2} \longrightarrow \text{CO}_{2}+2\text{H}_{2}\text{O}$

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Ionic compounds are electrically overall thereofre the sum of

Setler79 [48]

<span>substances consisting of ions held together by electrostatic attraction

</span>

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4 years ago

How much heat is required to melt 20 g of gold at 1064.18 °C with a heat of fusion of 64 J/g *

andrew-mc [135]

Answer:

1280J are required.

Explanation:

Heat of fusion is defined as the amount of heat required to change its state from liquid to solid at its melting point at constant pressure.

As heat of fusion of gold is 64J/g, there are required 64J to melt 1g of gold at its melting point. The energy required to melt 20g is:

20g * (64J/g) =

1280J are required

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3 years ago

Gasoline has a density of 0.749 g/ml. how many pounds does 19.2 gallons of gasoline weigh?

Svetradugi [14.3K]

A good first step is writing the amount in terms of ml.

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What cell type is found in the nervous tissue

marishachu [46]

Answer:

Nervous tissue is composed of neurons, also called nerve cells, and neuroglial cells

Explanation:

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4 years ago

Draw the structure of the organic product(s) of the grignard reaction between phosgene (clcocl) and excess phenylmagnesium bromi

Jobisdone [24]

Phosgene on reacting with <span>phenylmagnesium bromide generates benzoyl chloride.

Since, </span>phenylmagnesium bromide is added in excess. It would further react with benzoyl chloride to form benzophenone.

Benzophenone on further reacting with phenylmagnesium bromide, and aqueous treatment, gives triphenylmethanol.

Entire reaction pathways is shown below:

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