Answer:
1.196 M NaOH
Explanation:
Molarity = moles/Volume (L)
moles NaOH = mass NaOH/MM NaOH = 12/40.01 = 0.299 moles NaOH
Volume solution = 250 mL = 0.250L
M = 0.299/0.250=1.196 M NaOH
Answer:
True
Three-Dimensional Lattice
The unique arrangement of atoms or molecules within a crystalline solid is referred to as the crystal structure of that material. ... The crystal lattice represents the three-dimensional structure of the crystal's atomic/molecular components.
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The two chemical compounds are not the same, because their ratio is not equal. In both samples the composition of lead and oxygen is different.
<h3>
What is a chemical compound?</h3>
A chemical compound is a substance made of numerous similar molecules (or molecular entities) joined by chemical bonds and comprising atoms from various chemical elements. Therefore, a molecule made up of only one type of atom is not a compound. Chemical reactions, which may entail interactions with other molecules, can change a compound into a distinct substance. Atomic bonds may be broken or new ones created during this process.
<h3>
What are the calculations?</h3>
sample 1 = mass of lead / mass of oxygen = 12.92g/2g = 6.46 .
sample 2 = mass of lead/ mass of oxygen = 34.27 - 14.39/14.39 = 1.38 .
so, the ratios are not the same.
Hence, the two chemical compounds are not the same, because their ratio is not equal. In both samples the composition of lead and oxygen is different.
To know more about Chemical compounds, check out:
brainly.com/question/26487468
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Answer:the answer is B.) H2O3(aq) and Mg (OH)2(s)
Explanation:
Answer:
oxygen holds electrons more tightly than hydrogen does, and the net charge is zero.
Explanation:
The bonds in water are covalent in nature.
Covalent bond:
It is formed by the sharing of electron pair between bonded atoms.
The atom with larger electronegativity attract the electron pair more towards it self and becomes partial negative while the other atom becomes partial positive.
For example:
In water the electronegativity of oxygen is 3.44 and hydrogen is 2.2. That's why electron pair attracted more towards oxygen, thus oxygen becomes partial negative and hydrogen becomes partial negative.
