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Nikitich [7]
3 years ago
14

The calculation of quantities in chemical equations are called...

Chemistry
1 answer:
Anni [7]3 years ago
5 0
<span>The calculation of quantities in chemical equations are called Stoichiometry. Stoichiometry is a branch of chemistry which deals with relative quantities of reactants and products in chemical reactions. The correct answer is 'Stoichoimetry'. I hope this helps you. </span>
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since esters are cleaved on hydrolysis, the molecular weight of the acid derived from an ester is always lower than the molecule
dybincka [34]
Esters  contains  a  double  bond  between  carbon  atom  and  oxygen  atom  while  carboxylic  acid  lack  double  bond  between  carbon  and oxygen atom.The  lack  of  double  bond in  carboxylic  acid  make  the  force  of  interaction between  carbon  and  oxygen  strong  and  particles  become tightly  packed  which  make  carboxylic  acid  solid.  The  presence  of  double  bond  in  esters make  the  force  of  interaction  weak  thus  they  are  liquid.
6 0
3 years ago
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Which is NOT a reason why organisms communicate with one another?
Tpy6a [65]

Answer:

C. to find housing.

Explanation:

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3 years ago
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What is unique about the way that transition metals form compounds?
Alika [10]

Answer:

<u><em>A. They don't form compounds</em></u>

Explanation:

  • High density: The strong bonding between the atoms in transition metals cause them to be tightly held together, creating a high density. Colored compounds: Transition metals tend to form more colored compounds than other elements, either in solid form or dissolved in a solvent.
4 0
3 years ago
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A sound wave has a frequency of 3250 Hz and a
antiseptic1488 [7]

Answer:

c = 325.0 m/s.

Explanation:

Hello there!

In this case, since the frequency, velocity and wavelength are related via:

c=\lambda *f

Whereas c is the velocity, lambda the wavelength and f the frequency. Thus, we plug in the given data to obtain:

c=3250s^{-1}*0.1m\\\\c=325.0m/s

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8 0
3 years ago
21 pts. Sodium reacts with oxygen to produce sodium oxide as described by the balanced equation below. If 54.1g of sodium reacts
Aleksandr [31]
First, calculate the amount fo Na2O that should be produced with the given amount of sodium using proper dimensional analysis and  the balanced chemical reaction,

   theoretical amount of Na2O = (54.1 g of Na)(1 mol Na/23 g Na)(2 mos Na2O/4 mols Na)(62 g Na2O/ 1mol Na2O)
       
      theoretical amount of Na2O = 72.9 g of Na2O


Calculation of percent yield,

                % yield = (61.8 g Na2O) / (72.9 g of Na2O) x 100%
                 % yield = 84.75%

Answer: 84.75%
8 0
3 years ago
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