How much grams of mg(oh)2 is formed if 103g of h2o reacted? (round answer to the nearest tenths) mg2si+ > 2mg(oh)2 + sih4 (improvised arrow above not an inequality sign)

             117 g of Mg(OH)₂

Solution:
The equation is as follow,

                             Mg₂Si  +  4 H₂O     →     2 Mg(OH)₂  +  SiH₄

According to equation,

            72 g (4 moles) H₂O produces  =  116.64 g (2 mole) Mg(OH)₂
So,
                  103 g of H₂O will produce  =  X g of Mg(OH)₂

Solving for X,
                      X  =  (116.64 g × 103 g) ÷ 72 g

                      X  =  116.86 g ≈ 117 g of Mg(OH)₂

You know how the first one if filled up like the objects do the same but with the other categories

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .