Coefficient of "1" is understood. choose option "blank" for the correct answer if the coefficient is "1." bcl3; + h2o → h3bo3 + hcl

The balanced equation is:

BCl3 + 3H2O → H3BO3 + 3HCl

The coefficients are : 1, 3, 1, 3

Explanation:

The equation for the reaction is given below :

BCl3 + H2O → H3BO3 + HCl

The above equation can be balanced as follow:

There are 3 atoms of Cl on the left side and 1 atom on the right. It can be balance by putting 3 in front of HCl as shown below:

BCl3 + H2O → H3BO3 + 3HCl

There are a total of 6 atoms of H on the right side and 2 atoms on the left. It can be balance by putting 3 in front of H2O as shown below:

BCl3 + 3H2O → H3BO3 + 3HCl

Now we can see clearly that the equation is balanced as the atoms of the different elements present on both sides of the equation are equal.

The coefficients are : 1, 3, 1, 3

b. acid is the correct answer @jayxboof all social media

acid : acids are those which accepts an electron-pairs.

base : bases are those which donates ab electron-pairs.

alkali : it is a base that dissolves in water. it is basically a base and the ph greater than 7.

hydroxide ion : it is a poly-atomic ion which is negatively charged.

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.