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3 years ago

What are atoms made up of

2 answers:

7 0

They're made up of three main parts: protons, neutrons and electrons. Think of the protons and neutrons as together forming a “sun”, or nucleus, at the centre of the system. The electrons orbit this nucleus, like planets. If atoms are impossibly small, these subatomic particles are even more so.

Brums [2.3K]3 years ago

4 0

Cells i hope i’m right

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Explain how there can be more heat energy in an iceburg than in a pot of boiling water

vlada-n [284]

Heat energy is the amount of heat there is in a substance. This may be cold heat or warm heat. Temperature is how hot or cold a substance is. So because there is a higher volume of heat in the iceberg, we say it has more heat energy.

3 0

3 years ago

Draw a structural formula of an alkene or alkenes (if more than one) that undergo acid-catalyzed hydration and without rearrange

lara31 [8.8K]

Answer:

-) 2-methylbut-2-ene

-) 2-methylbut-1-ene

-) 3-methylbut-1-ene

Explanation:

in this case, the hydration of alkenes is a marknovnikov reaction, this means that the "OH" group would be added in the most substituted carbon of the double bond. (Figure 1)

For 2-methylbut-2-ene the most substituted carbon is the tertiary carbon (the carbon in the right of the double bond), so we will obtain the desired molecule. In 2-methylbut-1-ene the most substituted carbon is again the tertiary carbon (the carbon in the bottom of the double bond), so we will obtain 2-methyl-2-butanol. Finally, for 3-methylbut-1-ene the carbocation would be formed on carbon 3, this is a secondary carbocation. We can obtain a most stable carbocation if we do a hydride shift (Figure 2). With this new molecule is possible to obtain 3-methylbut-1-ene.

6 0

4 years ago

in sexual reproduction, of each chromosome in a pair has the same genes, how is genetic variety possible?

Sliva [168]

This answer will depend on if you are speaking about asexual reproduction or not.

Variety is possible here because the the product genes are half from the mother and half from the father. So a child might have blue eyes from his mother, but red hair from his father, etc. Different genetic mutations are the initial cause of all differentiation between genes, which are passed down from each generation to the next through this same process.

In Asexual reproduction, all reproductions are essentially clones of the parent, and no genetic variation, other than mutations will occur.

6 0

3 years ago

Read 2 more answers

The boiling points for a set of compounds in a homologous series can be qualitatively predicted using intermolecular force stren

shepuryov [24]

Answer:

The answer to your question is below

Explanation:

Alkane Formula Boiling point (°C)

Methane CH₄ -162

Ethane CH₃CH₃ - 89

Propane CH₃CH₂CH₃ - 42

Butane CH₃(CH₂)₂CH₃ - 0.5

Pentane CH₃(CH₂)₃CH₃ 36

Hexane CH₃(CH₂)₄CH₃ 69

Heptane CH₃(CH₂)₅CH₃ 98

Octane CH₃(CH₂)₆CH₃ 126

Nonane CH₃(CH₂)₇CH₃ 151

Decane CH₃(CH₂)₈CH₃ 174

6 0

4 years ago

Mention 7 organic compound from plant origin

storchak [24]

Answer:

carbohydrates, lipids, proteins, nucleic acids

5 0

3 years ago