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leonid [27]
3 years ago
14

Certain substances have a degreasing effect. Which of the substances below has a degreasing effect in solution?

Chemistry
1 answer:
Eduardwww [97]3 years ago
3 0

Answer:

Sodium Carbonate

Explanation:

Washing Soda�Sodium Carbonate (Na2CO3) (Na = Sodium, water softening)

Sodium softens water by binding with Calcium and Magnesium forming solid, which can be rinsed off the fabric. �However, if not rinsed thoroughly, the minerals can redeposit onto the fabric and cause problems. �

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Nitrogen is expressed with this formula:

N_{2} which means that every nitrogen molecules is composed of two atoms.


Hope it helped,

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Would you expect Nio to dissolve in an aqueous solution of NaNO3?
Doss [256]

Answer:

NiO Does Not Dissolve In An Aqueous Solution Of NaNO3.

Explanation:

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Rank these acids according to their expected pKa values.ClCH2COOHClCH2CH2COOHCH3CH2COOHCl2CHCOOHIn order of highest pka to lowes
Ilia_Sergeevich [38]

Answer:

CH₃CH₂CH₂COOH > CH₃CH₂COOH > ClCH₂CH₂COOH  > ClCH₂COOH

Explanation:

Electron-withdrawing groups (EWGs) increase acidity by inductive removal of electrons from the carboxyl group.

Electron-donating groups (EDGs) decrease acidity by inductive donation of electrons to the carboxyl group.

  • The closer the substituent is to the carboxyl group, the greater is its effect.
  • The more substituents, the greater the effect.  
  • The effect tails off rapidly and is almost zero after about three C-C bonds.

CH₃CH₂-CH₂COOH —  EDG —                         weakest —  pKₐ = 4.82

      CH₃-CH₂COOH — reference —                                     pKₐ = 4.75

  ClCH₂-CH₂COOH — EWG on β-carbon— stronger —     pKₐ = 4.00

           ClCH₂COOH — EWG on α-carbon — strongest —  pKₐ = 2.87

6 0
3 years ago
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Are mossed and ferns climax community or pioneer species
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Explanation:

5 0
3 years ago
When aqueous solutions of calcium bromide and potassium carbonate are combined, solid calcium carbonate and a solution of potass
ladessa [460]

K_2CO_3 + CaBr_2 → KBr + CaCO_3  is the net ionic equation for this reaction.

<h3>What is an ionic equation?</h3>

An ionic equation is a synthetic equation where electrolytes are composed as separated particles.

K_2CO_3 + CaBr_2 → KBr + CaCO_3 is the net ionic equation for this reaction.

A balanced ionic equation. shows the reacting ions. in a chemical reaction. These equations can be used to represent what happens in precipitation reactions.

Learn more about ionic equation here:

brainly.com/question/16225321

#SPJ1

5 0
2 years ago
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