Answer is: because pH value of solution is changing.
Balanced chemical reaction: NaOH(aq) + HCl(aq) → NaCl(aq) + H₂O(l).
pH of sodium hydroxide solution is above seven (basic), when solution of hydrochloric acid is added, pH slowly dropping until it became neutral solution (pH is equal seven) and that is endpoint of titration.
Answer:
The sun is a star but It is the brightest in the sky because it is the closest star to earth.
I don't know how to compare it to street lights though...
Explanation:
Sodium acetate<span> contains </span>both ionic and covalent<span> bonds. </span> <span>In </span>sodium acetate<span>, there is </span>ionic<span> bond between sodium and acetate </span>ions<span> and there is </span>covalent<span> bond in the atoms that are bondeed to the carbon atoms. Hope this answers the question.</span>
Answer:
oxygen ion.
An oxygen ion has 8 protons and 10 electrons.
10 HSiCl3+ 15 H2O→H10Si10O15+ 30 HCl
Explanation:
Step 1: To make Si equal on both sides. put 10 in front of HSiCl3
10 HSiCl3+ H2O →H10Si10O15+ HCl
Step 2: By putting 30 in front of HCl, Cl can be balanced
10 HSiCl3+ H2O →H10Si10O15+ 30 HCl
Step 3: Now, balance O by putting 15 in front of H2O
10 HSiCl3+ 15 H2O→H10Si10O15+ 30 HCl
Hence the balanced equation is:
10 HSiCl3+ 15 H2O→H10Si10O15+ 30 HCl
