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nata0808 [166]
2 years ago
15

What is the valency of aluminum in aluminum chloride? A. 1B.2C.3D.4​

Chemistry
2 answers:
viva [34]2 years ago
7 0
C ....:: the answer
Alinara [238K]2 years ago
5 0

Answer:

C.3

13AL

2.8.3

The number of electrons from the outermost shell is the valence of the element.

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A homogenous mixture that is mainly composed of water is referred to as a(n) __________ solution.
rosijanka [135]

Answer:

solvent solutions

Explanation:

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7 0
2 years ago
Calculate the pH of a buffer solution prepared by dissolving 0.20 mole of cyanic acid (HCNO) and 0.80 mole of sodium cyanate (Na
Afina-wow [57]

The pH of a buffer solution : 4.3

<h3>Further explanation</h3>

Given

0.2 mole HCNO

0.8 mole NaCNO

1 L solution

Required

pH buffer

Solution

Acid buffer solutions consist of weak acids HCNO and their salts NaCNO.

\tt \displaystyle [H^+]=Ka\times\frac{mole\:weak\:acid}{mole\:salt\times valence}

valence according to the amount of salt anion  

Input the value :

\tt \displaystyle [H^+]=2.10^{-4}\times\frac{0.2}{0.8\times 1}\\\\(H^+]=5\times 10^{-5}\\\\pH=5-log~5\\\\pH=4.3

7 0
2 years ago
Does anyone else simp for mhanifa?
rewona [7]

Answer:

i dont XD

Explanation:

7 0
3 years ago
Read 2 more answers
What term refers to elements in group 18 that only react with other elements under special laboratory conditions?
Savatey [412]

Answer:

Metalloids are found along the line between metals and non-metals on a periodic table. They are chemical elements that have properties in between those of metals and non-metals. ... Noble gases are all in group 18 on a periodic table.

Explanation:

5 0
3 years ago
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Part a write an equation for the formation of nh3(g) from its elements in its standard states. express your answer as a chemical
andrey2020 [161]
A. N₂ (g) + 3 H₂ (g) --> 2 NH₃ (g)
B. The value for standard enthalpy of formation is empirical given that the reactants involved were pure elements. So, you can search this on the internet or in any textbook. The Hf for NH₃ is -46.0 kJ/mol.
C. C (s) + O₂ (g) --> CO₂ (g)
D. The Hf for CO₂ is <span>-393.5 kJ/mol
E. 4 Fe (s) + 3 O</span>₂ (g) --> 2 Fe₂O₃ (s)
F. The Hf for solid Fe₂O₃ is -826.0 kJ/mol.
G. C (s) + 2 H₂ (g) --> CH₄ (g)
H. The Hf for methane gas is -74.9 kJ/mol.
3 0
3 years ago
Read 2 more answers
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