Identify the limiting reactant in the reaction of hydrogen and ethylene (c2h4) to form c2h6, of 4.40 g of h2 and 10.5 g of c2h4 are combined. determine the amount (in grams) of excess reactant that remains after the reaction is complete.

Definition :   Limiting reagent is the substance in a chemical reaction that is consumed when chemical reaction is complete.

step 1 :  first write the chemical reaction and then balanced the chemical equation

step 2 :  convert given masses into moles.

step 3 :  Now find the limiting reagent.

Now we conclude that   is the limiting reagent.

step 4 :  Amount of the excess reactant i.e

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.

here are some of the ways in which chemical and nuclear reactions differ.

explanation: