Answer:
A strong alkali is 100% ionised.eg÷sodium hydroxide.
A week alkali is not 100% ionised.eg÷ammonia
A concentrated acid contains a large amount of acid in a given volume.
Covalent
Explanation:
The compound described in the image is a covalent compound. This is an organic compound containing non-metals. This is an alkanal.
- Covalent bonds are formed between two or more atoms having zero or very small electronegativity difference.
- Such bonds exists between molecules of non-metals such as C, H, O, N, F e.t.c
- Each of the atom tends to share the valence electrons in their outer energy levels to be able to mimic the noble gas structure.
- For the formation of covalent bonds, each of the atom requires odd or unpaired electrons.
This is the case between the carbon, hydrogen and oxygen atoms here.
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Covalent bonds brainly.com/question/10903097
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The distance between the atoms of H−I is 1.61 Å. The units used here is called the angstrom. It is a unit of length equal to one hundred-millionth of a centimeter, 10^–10<span> meter. So, the distance in meters would be 1.61 x 10^-10 m.</span>
Answer:
See Explanation
Explanation:
From Gay-Lussac's law of combining volumes;
Equation of the reaction; 2H2(g) + O2(g) -------> 2H2O(g)
Ratio of volumes; 2 : 1 : 2
Initial volumes; 500cm^3 500cm^3 0 cm^3
Reacting volumes; 500cm^3 250cm^3 500cm^3
Final Volumes; 0 cm^3 250 cm^3 500 cm^3
We can easily see from the table that the limiting reactant is oxygen.
Hence, the mass of water formed is obtained from;
1 mole of gaseous water occupies 22400 cm^3
x moles of water occupies 500cm^3
x = 500cm^3 * 1 mole/22400 cm^3
x = 0.022 moles of water
Mass of water = 0.022 moles of water * 18 g/mol
Mass of water = 0.396 g
it should be True unless if I’m wrong