Answer: (3)
Medeleev arranged elements in order of increasing atomic weight and similar properties
He noticed that similar elements were grouped together by using this.
<u>Answer:</u>
<em>The number of moles of HCl actually present is 0.000988</em>
<u>Explanation:</u>
<em>The balanced chemical equation of the given reaction is </em>
Here one mole of HCl reacts with one mole of NaOH to form one mole of NaCl and one mole of water. Here the molarity of HCl is given as 0.026M.
<em>molarity of NaOH is 0.032M
</em>
molarity is the number of moles per unit volume of solution.
we have to calculate the number of moles in 36 mL of HCl.
<em>38 mL=36/1000=0.038L
</em>
<em>the number of moles in 38 mL of HCl is given by
</em>
<em>no of moles =</em>
Answer:
The answer to your question is below
Explanation:
Ions are atoms that are electrically charged. There are two kinds of ions
- Cations are ions with a positive charge.
- Anions are ions with a negative charge.
Sodium forms cations because it loses one electron and I can bound to anions like halogens.
Then, the paragraph will be:
"If the sodium ion has a + charge after ionization, then it will interact with a Chlorine ion which has a - charge".
Endothermic because the separation of the ions dictate the overall reaction