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marshall27 [118]
3 years ago
14

What is solution in chemistry

Chemistry
1 answer:
nika2105 [10]3 years ago
4 0
a solution in chemistry is a homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.
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If a copper atom loses two electrons, the name of the copper ion is:
Reil [10]
I think the correct answer from the choices listed above is the second option. If a copper atom loses two electrons, the name of the copper ion is copper (II) ion . Also it is called cupric acid. However, the latter <span>is an old term and is not recommended. Hope this answers the question.</span>
6 0
3 years ago
Match the following group with correct molecule<br> Organic biochem
andreev551 [17]

Answer:

CH₃CH₂CH₂CH₂CH₂OH - E. Alcohol

CH₃CH₂OCH₂CH₃ - F. ether

CH₃CH₂CH₂SH - G. thiol

CH₃COOH - J. Carboxylic acid

CH₃CH(OH)CH₂CH₃ - E. Alcohol

CH₃CH₂CH₂CH₂CHO - A. Aldehyde

CH₃CH₂CH₂COCH₃ - B. Ketone

Explanation:

Currently taking organic chemistry.

Hope this helps. :)

6 0
3 years ago
Choose the correct tools for each of the following measurements. The volume of a sugar cube: The volume of an irregular block of
prisoha [69]

1.ruler

2.graduated cylinder

4 0
4 years ago
Read 2 more answers
Write the electron configuration for Br- and state the number of valence electrons. Select one:
Aleks04 [339]

Answer:

1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^62} 4s^{2} 3d^{10} 4p^{5} with 7 valence electrons.

Explanation:

Bromine has 7 unpaired (valence) electrons in its outer shell, and a total of 35 elecrons. Its <em>4s</em> orbital is completely filled with 2 electrons.

The closest answer from the options would be option D.

I hope this helps.

3 0
3 years ago
Given the standard heats of reaction
ANTONII [103]

Answer:

Explanation:

M(s) → M (g ) + 20.1 kJ --- ( 1 )

X₂ ( g ) → 2X (g ) + 327.3 kJ ---- ( 2 )

M( s) + 2 X₂(g) → M X₄ (g ) - 98.7 kJ ----- ( 3 )

( 3 ) - 2 x ( 2 ) - ( 1 )

M( s) + 2 X₂(g) - 2 X₂ ( g ) - M(s)  → M X₄ (g ) - 98.7 kJ -  2 [ 2X (g ) + 327.3 kJ ] - M (g ) - 20.1 kJ

0 = M X₄ (g ) - 4 X (g ) - M (g ) - 773.4 kJ

4 X (g ) +  M (g ) =  M X₄ (g ) - 773.4kJ

heat of formation of M X₄ (g ) is - 773.4 kJ

Bond energy of one M - X bond =  773.4 / 4 =  193.4 kJ / mole

6 0
3 years ago
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