2 years ago

1. List 3 physical and chemical phenomena

1 answer:

8 0

Answer:

Examples of chemical changes are burning, cooking, rusting, and rotting. Examples of physical changes are boiling, melting, freezing, and shredding. Often, physical changes can be undone, if energy is input.

Hope this helped.

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If you could spend a billion dollars (1 x 10 to the 9th power) per second, how many years would it take to spend one mole of dol

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1000 to the power 4 not so good at math but

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3 years ago

Be sure to answer all parts. Show the overall reaction for formation of racemic 3âˆ’bromohexane from (E)âˆ’3âˆ’hexene by enterin

Viktor [21]

Answer:

See explanation

Explanation:

The mechanism for the formation of bromohexane from hexene has been clearly shown in the image attached to this answer.

Hexene is attacked by HBr and a carbocation is first formed as shown. The carbocation is flat and planar. it can be attacked on either face by the bromide ion.

Attack on either faces yields a racemic mixture of the R and S enantiomer as shown in the image.

You can use the mechanism shown to fill in the structures.

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2 years ago

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3 years ago

PLEASE HELP!

Musya8 [376]

1) Decomposition

2) CaCO3 → CaO + CO2

equation is already balanced

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2 years ago

What family on the periodic table has ad least one solid, one liquid and one gas.

const2013 [10]

Answer:

FLUORINE, CHLORINE, BROMINE, IODINE, ASTATILE AND TENNESINE

Explanation :

Florine and chorine=gas

Bromine=liquid

ASTATILE and TENNESINE =solid

HOPE IT is right

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3 years ago