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exis [7]
3 years ago
6

What is the density of this cube?

Chemistry
2 answers:
zlopas [31]3 years ago
8 0

Answer:

32gcm3

so yea i hope this helps u

Fofino [41]3 years ago
8 0

Answer:

4 g / cm^3

Explanation:

Mass = 32 g

Volume of cube = 2 x 2 x 2 = 8 cm^3

Formula : -

Density = Mass / Volume

Density = 32 / 8

Density = 4 g / cm^3

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Which of the following statements about organic chemistry is correct? Be careful, there may only be one word incorrect.
Leokris [45]

In "condensed structural formula" each carbon atom and its attached hydrogen atoms are written in group in the linear form is correct about organic chemistry.

Option B

<u>Explanation</u>:

"condensed structural formula" is a method of writing or presenting organic structures in line of text. It presents all the atoms, but excludes the vertical bonds and all the horizontal single bonds. In condensed structural formula, or we can say semi-structural formula, covalent bonds are not always presented or shown. When the formula or representation is written in line with covalent bonds being shown, then it is referred to as linear formula. For example- the condensed structural formulas of ethane, propane, and ethanol is written as follows:-  

\mathrm{CH}_{3} \mathrm{CH}_{3},\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{3},\text { and } \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}

Apart from these Statement, all others are false because they do not have any logic with respect to organic chemistry.

7 0
4 years ago
Which soil layer contains the most humus?<br> A) A horizon B) B horizon C) C horizon D) D horizon
Bad White [126]
None. It's the O horizon. Compromises of mostly decomposed plant litter.
5 0
3 years ago
Calculate the number of moles of sodium chloride (NaCl) formed if 0.345
nalin [4]

Answer : The number of moles of NaCl formed are, 0.69 moles.

Explanation : Given,

Moles of CaCl_2 = 0.345 mol

Now we have to calculate the moles of NaCl

The balanced chemical equation is:

1Na_2CO_2(aq)+1CaCl_2(aq)\rightarrow 1CaCO_3(s)+2NaCl(aq)

From the balanced reaction, we conclude that

As, 1 mole of CaCl_2 react to give 2 moles of NaCl

So, 0.345 mole of CaCl_2 react to give 2\times 0.345=0.69 mole of NaCl

Therefore, the number of moles of NaCl formed are, 0.69 moles.

3 0
3 years ago
Which of these substances contributes to soap’s slippery texture?
kompoz [17]

Answer:

The fatty acids and glycerol contributes to soap’s slippery texture.

Explanation:

  • What we need to know is that every oil has a specific index for strength, cleaning, etc.
  • All of them are determined by the amount of certain fatty acid in the oil.
  • When we make soap, what we need to know is that oil has a special role to play in that soap.
  • So for example some of those oils are used to make bubble soap or creamy soap.
  • On the other side, there are some oils which are giving strength to soap.
3 0
4 years ago
Read 2 more answers
Susan dropped a nail into a graduated cylinder filled with water. She then recorded the number of millimeters the water rose in
ziro4ka [17]
The volume of the nail since it is an irregular figure you can't measure it like a regular object.
5 0
3 years ago
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