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Basile [38]
3 years ago
13

I have a block of gold and the density is 13.54g/ml If I cut the block in half what is the density of the smaller pieces of gold

Chemistry
1 answer:
Delvig [45]3 years ago
5 0

Answer:

<u><em>Density is the same</em></u>

Explanation:

The density remains the same because cutting the object in half will divide the mass & volume by the same amount. Also, the density of a substance remains the same no matter what size it is.

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The arrangement of particles that make up an ionic compound would be an ionic lattice type of crystal arrangement. An ionic lattice type of structure will be formed due to many of the ionic bonds formed between the oppositely charged ions of the metal and nonmetal.
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10. Which change to a DNA molecule would have the least effect on an organism?
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What is the reason of formation of millions of organic compound
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Many carboxylic acids are much better known by their common names than by their systematic names. 2-Hydroxypropanoic acid (bette
sdas [7]

Answer:

  • CH₃ - CH - COOH

                  |

                  OH

  • The developed structural formula is also attached.

Explanation:

The IUPAC name, <em>2-hydroxypropanoic acid</em>, lets you predict the structural formula for <em>lactic acid</em>.

  • <em>2-hydroxy</em> means that there is a OH functional group attached to the second carbon atom of the chain.

  • <em>Propan</em> prefix means that the molecule has 3 carbon atoms.

  • <em>oic</em> suffix means that it is a carboxylic acid, this is it contains the COOH functional group.

Hence, in conclusion the structural form of lactic acid is:

  • C³H₃ - C²H - C¹OOH

                   |

                   OH

I used the superscripts just to show the number of the carbon atom in the chain.

The formal structural formula does not contain such superscripts it is just:

  • CH₃ - CH - COOH

                  |

                  OH

A more developed structural formula will show the distribution of the atoms in the space. I have also attached a picture with the developes structural formula.

3 0
3 years ago
Ill upvote please help
marshall27 [118]
We know, acceleration = change in velocity / time
a = 9.6 - 12 / 0.9
a = -2.4 / 0.9
a = -2.67

In short, Your Answer would be Option C

Hope this helps!
3 0
3 years ago
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